Cole Parmer Electrothermal RAK30 HW & R User manual

Heater, Water & Ration (HW &R)
RAK30 One shot boiling unit.
N.S.N 7310-99-362-3482
Instruction Manual
M7819 / Version 4.4

Please take your time to read this Instruction manual in order to understand the safe and
correct use of your new Electrothermal product.
It is recommended the responsible Body for the use of this equipment reads this instruction
manual and ensures the user(s) are suitably trained in its operation.
Contents Page
Section 1 Introduction 3
Section 2 Symbols and using this Instruction manual 4
Section 3 Safety Information 5
Section 4 Unpacking and Contents 6
Section 5 Installation 7
Section 6 Environmental Protection 8
Section 7 Equipment Operation 9
Section 8 Technical Specication 12
Section 9 Service and Maintenance 13
Section 10 Spares and Accessories 21
Section 11 Customer and Technical Support 21
Section 12 Notes 22
© The copyright of this instruction manual is the property of Cole-Parmer Limited. This instruction manual is supplied
by Cole-Parmer Limited on the express understanding that it is to be used solely for the purpose for which it is supplied.
It may not be copied, used or disclosed to others in whole or part for any purpose except as authorised in writing by
Cole-Parmer Limited. Cole-Parmer Limited reserves the right to alter, change or modify this document without prior
notication.
In the interest of continued development Cole-Parmer Limited reserve the right to alter or modify the design and / or
assembly process of their products without prior notication.
This product is manufactured in Great Britain by Electrothermal, part of the Cole-Parmer Group of companies.
Cole-Parmer Ltd.
Beacon Road,
Stone,
Staffordshire,
ST15 0SA,
United Kingdom
Tel: [phone]
2

1. INTRODUCTION
The RAK30 HW & R provides a mounted, portable water and pre-packed ration
heating facility for the crew of vehicles which have a 28Volts DC (nominal)
electrical system. Operation of the RAK30 is possible while stationary or mobile
provided an operational voltage is maintained. The unit has a one shot boil
capacity.
The RAK30 HW & R has two basic modes of operation:-
One Shot Boil: With the Inner Container removed, the unit can boil up to 3 litres
of water from 20°C in just over 30 minutes when switched to the ‘HI’ setting. After
boiling, the water will cool slowly until a temperature approaching 86°C ± 3°C is
reached. The HW & R will then continue to operate and maintain the contents at
this lower temperature.
Pre-packaged Food Warming: With the Inner Container in place containing pre-
packaged Food and the Outer container lled with 1 18 litres of water, Pre-packaged
food can be warmed to around 68°C when switched to ‘LO’ setting.
A safety feature of the RAK30 HW & R is the ‘boil dry’ detection facility. Should
such condition arise the power will be cut from the heaters and the unit will turn
itself off.
3

2. SYMBOLS AND USING THIS INSTRUCTION MANUAL
2.1. Throughout this Instruction book the following symbols are shown to identify conditions
which pose a hazard to the user or to identify actions that should be observed. These
symbols are also shown on the product, or its packaging. When a symbol is shown next
to a paragraph or statement it is recommended the user takes particular note of that
instruction in order to prevent damage to the equipment or to prevent injury to one’s
self or other people.
The Responsible Body and the Operator should read and be familiar with this
Instruction manual in order preserve the protection afforded by the equipment.
To prevent injury or equipment damage it is the manufacturer’s
recommendation that all persons using this equipment are suitably trained
before use.
2.2. Symbols Dened
Caution, risk of danger. See note or adjacent symbol.
Do not dispose of product in normal domestic waste.
Caution. Hot surface.
Refer to Instruction Manual.
Recyclable Packaging Material.
4
Page 4 of 24 M7819 Issue 4.2
2. SYMBOLS AND USING THIS INSTRUCTION BOOK.
2.1. Throughout this Instruction book the following symbols are shown to identify
conditions which pose a hazard to the user, or to identify actions that should be
observed. These symbols are also shown on the product, or its packaging. When a
symbol is shown next to a paragraph or statement it is recommended the user takes
particular note of that instruction in order to prevent damage to the equipment or to
prevent injury to one’s self or other people.
The Responsible Body and the Operator should read and be familiar with this
Instructions book in order preserve the protection afforded by the equipment.
To prevent injury or equipment damage it is the manufacturer’s
recommendation that all persons using this equipment are suitably trained
before use.
2.2. Symbols Defined.
Caution, risk of danger. See note or adjacent symbol.
Do not dispose of product in normal domestic waste.
Caution. Hot surface.
Refer to Instruction book.
Recyclable Packaging Material.

5
3. SAFETY INFORMATION
This product has been designed for safe operation when used as detailed in accordance
with the manufacturer’s instructions.
NOTE: Failure to use this equipment in accordance with this instruction manual may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard. Use this HW & R to heat water or to unopened
pre-packaged food.
Health Hazard. Non-Potable / Dirty Water. Only use clean, potable
water in the HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure. Do Not Open the Cover if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the pressure valve.
Avoid leaning or reaching over the HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overlling. When heating water, do not ll the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overlling can cause a hazard
when boiling.
Overlling. When the inner container is tted, Do Not ll the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over lling
can cause a hazard.
Installation. Ensure the HW & R is securely fastened in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable.
NOTE: if this product is not used in accordance with the Manufacturers Instructions
then the basic safety protection afforded by the equipment may not be preserved and
the guarantee invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.
Page 5 of 24 M7819 Issue 4.2
3. SAFETY INFORMATION.
This product has been designed for safe operation when used as detailed in
accordance with the manufactures instructions.
NOTE: Failure to use this equipment in accordance with this instruction book may
compromise your basic safety protection afforded by the equipment and may
invalidate the warranty / guarantee. The warranty / guarantee does not cover
damaged caused by faulty installation or misuse of the equipment.
Health Hazard.
Use this HW & R to heat water only, or to heat
unopened pre-packaged food.
Health Hazard.
Non-Potable / Dirty Water. Only use clean, potable
water in thee HW & R, in order to prevent contamination of food or
water.
High Temperatures. Operating temperatures of up to 100°C can
be reached and heating surfaces may reach an even higher
temperature. Always use gloves or other hand protection as
necessary.
Over pressure.
Do
N
ot Open the Cover
if the pressure relief
valve is ‘hissing’ or vent steaming. There is a serious risk or
scalding from boiling water.
During the boil cycle steam will be released via the Pressure valve.
Avoid leaning or reaching over HW & R during this time.
ALWAYS VENT WATER THROUGH THE TAP BEFORE
OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
Overfilling.
When heating water, do not fill the HW & R above the
3-litre line. (i.e the MIDDLE LINE). Overfilling can cause a hazard
when boiling.
Overfilling.
When the inner container is fitted, Do Not fill the
HW & R above the 1.18 litre line. (i.e. the LOWER LINE) Over filling
can cause a hazard.
Installation.
Ensure the HW & R is secularly fasten in position as
recommended by the vehicle manufacturer.
Only use the HW & R with the correct power supply cable (See
section 11 – Parts and accessories)
NOTE: if this product is not used in accordance with the Manufacturers Instructions then the
basic safety protection afforded by the equipment may not be preserved and the guarantee
invalidated.

6
4. UNPACKING AND CONTENTS
4.1. Please check the contents of your carton against the diagram.
Item No. Description Qty
1 Instruction Manual 1
2 RAK30 HW & R unit 1
Page 6 of 24 M7819 Issue 4.2
4. UNPACKING AND CONTENTS.
Item
No
Description
Qty
1
Instruction Book
1
2
RAK3 0 HW & R unit
1
For future reference
please record your
products Serial and
Model Numbers.
Serial Number Model Number
Page 6 of 24 M7819 Issue 4.2
4. UNPACKING AND CONTENTS.
Item
No
Description
Qty
1
Instruction Book
1
2
RAK3 0 HW & R unit
1
For future reference
please record your
products Serial and
Model Numbers.
Serial Number Model Number

7
5. INSTALLATION
The RAK30 HW & R is supplied ready for use. Remove all packing, including desiccator
sachets. Initial cleaning of the food zone as advised if, on receipt, the unit has already
been removed from the original Manufacturer’s packaging (see section 9 Maintenance).
The RAK30 HW & R should be installed into the vehicle in accordance with the relevant
vehicle installation data. The three studs (5/16” x 10 UNC thread) provide on the HW &
R are for location only and not for sole mounting purpose. The recommended method
for mounting of the HW & R is in a xed cradle with over top strapping using webbed
belting. For further advice on mounting, please contact the manufacturer as detailed in
section 11 Customer support.
The electrical supply for the HW & R to the vehicle is 28 Volts DC (nominal) and should
be made using a cable harness.
The RAK30 HW & R must be connected via a fused power cable.

8
6. ENVIRONMENTAL PROTECTION
6.1. Maximum consideration has been given to environmental issues within the design and
manufacturing process without compromising end product performance and value.
6.2. Packaging materials have been selected such that they may be sorted for
recycling.
6.3. At the end of your product and accessories life, it must not be discarded as
domestic waste. Ref: EU Directive 2002/96/EC on Waste Electrical and Electronic
Equipment Directive (WEEE). Please contact your distributor / supplier for further
information. For end users outside of the EU consult applicable regulations.
6.4. This product should only be dismantled for recycling by an authorised recycling
company.
Page 9 of 24 M6493 Issue 10.3
6. ENVIRONMENTAL PROTECTION.
6.1. Maximum consideration to environmental issues within the design and
manufacturing process without compromising end product performance and value.
6.2. Packaging materials have been selected such that they may be sorted for
recycling.
6.3. At the end of your product and accessories life, it must not be discarded as
domestic waste. Ref: EU Directive 2002/96/EC on Waste Electrical and Electronic
Equipment Directive (WEEE). Please contact your distributor / supplier for further
information. For end users outside of the EU consult applicable regulations.
6.4. This product should only be dismantled for recycling by an authorised recycling
company.
This product and accessories must be accompanied by a completed
Decontamination Certificate prior to any disposal. Copies of the Certificate are
available from your distributor of Bibby Scientific products, or you may copy
and enlarge from ‘Appendix A’ of this instruction book.
Bibby Scientific’s Electrothermal branded product range is registered with the Environment Agency under the name of as
Electrothermal Engineering Limited as being a producer of WEEE (Waste Electronic and Electrical Equipment) through b2b
Compliance, an authorised waste collection compliance scheme.
Page 9 of 24 M6493 Issue 10.3
6. ENVIRONMENTAL PROTECTION.
6.1. Maximum consideration to environmental issues within the design and
manufacturing process without compromising end product performance and value.
6.2. Packaging materials have been selected such that they may be sorted for
recycling.
6.3. At the end of your product and accessories life, it must not be discarded as
domestic waste. Ref: EU Directive 2002/96/EC on Waste Electrical and Electronic
Equipment Directive (WEEE). Please contact your distributor / supplier for further
information. For end users outside of the EU consult applicable regulations.
6.4. This product should only be dismantled for recycling by an authorised recycling
company.
This product and accessories must be accompanied by a completed
Decontamination Certificate prior to any disposal. Copies of the Certificate are
available from your distributor of Bibby Scientific products, or you may copy
and enlarge from ‘Appendix A’ of this instruction book.
Bibby Scientific’s Electrothermal branded product range is registered with the Environment Agency under the name of as
Electrothermal Engineering Limited as being a producer of WEEE (Waste Electronic and Electrical Equipment) through b2b
Compliance, an authorised waste collection compliance scheme.

9
7. EQUIPMENT OPERATION
7.1. The RAK30 HW & R has been designed for easy operation. The illustration below
shows the different components of the product.
Page 9 of 24 M7819 Issue 4.2
7. PRODUCT OPERATION.
7.1. The RAK30 HW & R has been designed for easy operation. The illustrations below
show detailed layouts of this product.
1. Main Case Assembly.
2. Outer Container.
3. Cover
4. Inner Container.
5. Latch
6. Tap Assembly.
7. Control Panel Assembly.
8. Pressure Relief Valve.
1
2
4
3
8
5
6
7

10
Page 10 of 24 M7819 Issue 4.2
7.2. One Shot Boil: To boil the maximum volume of water, ensure the Control Panel
Toggle Switch is in the OFF position. Remove the Inner Container and stow in a safe
place. Fill the HW & R with potable water up to the Upper Level Line (3 Litres –
maximum for boiling).
Note: Always check the vent hole in the cover is clear before closing the cover.
Close the cover ensuring the latch is secure.
Switch the Toggle Switch to the ‘HI’ position and the operational sequence will follow
as per the table below.
Stage.
Panel Indication. Status. Definition.
1. Power On
Boil Cycle
Heater On



LED On – Green.
LED Off.
LED On – Yellow
Water is heating. Temperature is
below the timer start set point of 95°C.
2. Power On
Boil Cycle
Heater On



LED On – Green.
LED flashing – Yellow
LED On - Yellow
Water continues to heat. Temperature
is above 95°C & timed boil cycle is in
progress. Boil cycle LED flashes.
3. Power On
Boil Cycle
Heater On



LED On – Green
LED On – Yellow
LED Off
One shot boil cycle completed. Heater
is off. Water is in process of cooling
down to approximately 86°C. This
takes approximately 1 hour.
4. Power On
Boil Cycle
Heater On



LED On – Green.
LED On – Yellow.
LED On – Yellow
One shot boil cycle complete. Heater is
back on. Water is being maintained at
86°C.
Note: Stages 3 and 4 above will cycle continuously until Toggle switch is operated.
When boiling occurs, steam will be seen to vent through the Pressure Release Valve.
The HW & R can be switched off at any time by returning the Toggle Switch to the
OFF position.
When Hot Water is required, discharge the required volume into an appropriate
container by operating the tap, tacking care and using gloves or other hand protection
as necessary.
DO NOT OPEN THE COVER IF THE PRESSURE RELIEF VALVE IS
‘HISSING’ OR VENTING STEAM. ALWAYS VENT WATER THROUGH THE TAP
BEFORE OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.
If Stage 4 in the table above has been reached and the unit is switched off and then
back on to high, the one shot boil sequence detailed on stages 1 to 3 in the above
table will be repeated. The time to boil from the high temperature of 86°C temperature
is approximately 15 minutes.

11
Page 11 of 24 M7819 Issue 4.2
7.3. Warming Pre-packaged Food: Ensure the Control Panel Toggle Switch is in the
OFF position. Remove the Inner Container and fill the HW & R with potable water up
to the LOWER LEVEL LINE (1.18 litres) maximum. Place the pre-packaged food
pouches into the Inner Container and add sufficient potable water to cover. Replace
the Inner Container into the HW & R.
Note: Always check the vent hole in the cover is clear before closing the cover.
Close the Cover, ensuring the latch is secure.
Switch the Toggle Switch to the ‘LO’ position and the operational sequence will
commence as detailed in the table below.
Stage.
Panel Indication. Status. Definition.
1. Power On
Boil Cycle
Heater On



LED On – Green.
LED Off.
LED On – Yellow
Water is heating towards set point of
68°C
2. Power On
Boil Cycle
Heater On



LED On – Green.
LED Off
LED Off
Water is at 68
°
C set point. Heater
turns off.
Note: Stage 1 & 2 above will cycle continuously until Toggle Switch is operated.
The HW & R can be switch off at any time by returning the Toggle Switch to the OFF
position.
When the hot food is required, switch the Toggle Switch to the OFF position.
Take care and use gloves or other hand protection as necessary, remove the Cover,
Inner Container and the pre-packaged food. If required discharge the remaining
volume of hot water into an appropriate container by operating the tap.
DO NOT OPEN THE COVER IF THE PRESSURE RELIEF VALVE IS
‘HISSING’ OR VENTING STEAM. ALWAYS VENT WATER THROUGH THE TAP
BEFORE OPENING THE COVER. PRESSURISED BOILING WATER CAN
SERIOUSLY SCALD.

12
8. TECHNICAL SPECIFICATION
Physical Data
Height (closed, handle up) 310mm
Height (closed, handle down) 267mm
Height (cover fully open) 483mm
Width 216mm
Depth 292mm
Weight (empty and unpacked) 8.7 Kg Nominal.
Fixtures / Fittings
Power Connector 3-pin shrouded plug.
LO/Off HI, Switch 3-position DPDT toggle switch with centre-off position.
Power On LED Green LED / Red in Fault condition.
Boil Cycle LED Yellow LED
Heater On LED Yellow LED
Latch (main case + cover) Self-locking quick-release toggle clip + hook.
Lifting handle (cover) Fold down Heat proof Grip.
Tap Spring loaded ‘pull to operated’ water valve.
Pressure / vacuum relief Dual action air valve pre-set at 0.3 psi (20.7 mb).
Electrical Data
Supply Voltage 28Volts DC
Supply Current 30A
Power Consumption 800Watts (nominal).
Heater Type Cartridge type 200W each 4 off mounted in heater block on
underside of the outer container.
Heater Control On / Off switching determined by temperature sensor using
thermal feedback.
Heater Safety Cut-out Boil dry temperature sensor operating at 172 °C. Non repairable
thermal fuse set operating at 175°C.
Performance Data.
Heating (water only) 3 litres of water will boil in 75 minutes (max) from an ambient
temperature of 21°C at sea level.
Heating (Rations + water) Temperature of up to ve pre-cooked meals and 1.18 litres
water will be raised to between 66°C and 71°C from an ambient
temperature of 21°C. Cooking time dependent on meal.
Heating Retention Better that 45% of selected heating range at three hours after
HW & R is turned off with the cover closed and latched.
Heating Range (LO) 66 - 71°C at sea level.
Heating Range (HI) Initial ‘One Shot’ Boil, then cools to 82 - 88°C at sea level.
Automatic Shutdown Power supply voltage less than 24Volts DC or Boil Dry detected.
Overvoltage Protection Power supply voltage greater than 32Volts DC.
Environmental Data.
Temperature (operating) Between -32 and 60°C.
Temperature (storage) Between -51 and 71°C.
Humidity (storage) Between 10 and 90%.
The Ingress protection rating for this product is classied as IP53D.

13
9. SERVICE AND MAINTENANCE
9.1. Preventative maintenance checks should be carried as per the following table.
Page 13 of 24 M7819 Issue 4.2
9. SERVICE AND MAINTENANCE.
9.1. Preventative maintenance checks should be carried as per the following table.
TABLE:-Preventative maintenance checks and service (PMCS)
Item No
Item to Check
Service
Procedure
Not Fully Mission
Capable If:
1. Cover a. Inspect for loose/missing parts and
change physical damage.
Parts such as screws
are loose/missing or
damage will prevents
safe usage.
b. Check cover seal is properly fitted
and not distorted.
Cover seal is badly
fitted or loose and
leakage of steam or
water is possible.
c. Inspect for dirt, grease, oil or food
debris.
d. Inspect for signs of corrosion.
e. Check steam vent hole is clear. Vent hole blocked.
2. Inner Container a. Check inner container is fitted and
can be easily lifted out of the outer
container
Container is missing.
Fold-down wire lifting
handle is missing or
broken.
b. Inspect for physical damage such
as holes or large dents.
Container has damage
preventing safe usage.
c. Inspect for dirt, grease, oil or food
debris.
d. Inspect for signs of corrosion.
3. Outer Container a. Inspect for physical damage such
as holes or large dents
Container has damage
preventing safe usage.
b. Inspect for dirt, grease, oil or food
debris.
c. Inspect for signs of corrosion.
4. Main case a. Inspect for loose / missing parts
and physical damage.
Parts such as screws
are loose/missing or
damage will prevents
safe usage.
b. Check case seal is properly fitted
and not distorted.
Case seal is badly fitted
or loose and leakage of
steam or water is
possible.
c. Inspect for dirt, grease, oil or food
debris.
d. Inspect of sign of corrosion.
5. Latch a. Check latch is secured to the main
case and has no missing or broken
parts.
Latch has loose or
missing screws. Any
part is broken loose or
missing.
b. Check lock and unlock operation is
correct
Latch will not lock /
unlock.
6. Tap a. Check tap is secured to the main
case and has no missing or broken
parts.
Tap has loose or
missing screws. Any
part is broken, loose or
missing.
b. Check tap can be easily operated
over its full range without binding.
Tap dose not move
freely or is jammed in
one position.

14
Page 14 of 24 M7819 Issue 4.2
Continued:-
7. Control Panel a. Check control panel is secure to the
main case and has no missing or
broken parts.
Control Panel has
loose or missing
screws. Any part is
loose or missing.
b. Check power cable connector is
properly connected to the power
connector.
Power cable connector
plug cannot be
connected or
connection is unsafe.
8. Main Case Check for leakage of water
indicated by damp or discoloured
patches on the cover seal.
Leakage of water is
observed.
9 Tap. Check for leakage of water after
each operation.
Leakage of water is
observed.
10 Cover. Inspect for dirt, grease, oil or food
debris.
11 Inner Container. a. Check food has been removed.
b. Inspect for dirt, grease, oil or food
debris.
12. Outer Container a. Check water has been removed.
b. Inspect for dirt, grease, oil or food
debris.
13. Main case a. Inspect for dirt, grease, oil or food
debris.
b. Check inner container is fitted. Inner container is
missing.
c. Check cover is installed and the
latch is closed and locked.
Cover will not fit or
latch will not close and
lock.
9.2. Cleaning and Sanitising.
Cleaning & sanitising of the HW & R should be performed when identified as
necessary from the check / procedures described in Paragraph 9.1 Table
‘Preventative Maintenance Checks and Service.
These operations are defined as follows:
Cleaning: Cleaning of internal and external parts using hand dishwashing compound.
Sanitising: Sanitising of internal parts using food service disinfectant.

15
Page 15 of 24 M7819 Issue 4.2
WARNING.
NON-POTABLE / DIRTY WATER. Only use clean, potable water
when cleaning & sanitising the HW & R. Non-potable or dirty water can cause
contamination of clean water or food.
CAUTION.
IMMERSION IN WATER. Do not immerse the HW & R in water. The
ingress of water into the control panel can result in the HW & R becoming
non-operational.
CLEANING MATERIAL. Only use the authorised cleaning materials.
Materials such as metal scouring pads can cause damage to the surface
finish.
DISHWASHING COMPOUND. Discard hand dishwashing compound /
heated water solution inn accordance with the disposal instructions.
NOTE: With the HW & R mounted in the host vehicle it is not necessary to
disconnect the power supply when performing the cleaning procedures.
Cleaning Inner / Outer and tap assembly.
9.2.1. To prepare the HW & R for cleaning and sanitising, switch OFF the unit and
remove the cover and inner container.
Clean the Inner / Outer Containers and Tap. Perform the following
procedural steps in the given order:
Note: If necessary for cleaning purposes, the fold-down wire handle can
be removed from the inner container before performing step 9.2.2.

16
Page 16 of 24 M7819 Issue 4.2
9.2.2. Remove any loose food from the inner and outer containers by pre-scraping.
9.2.3. Fill the outer container with clean , potable water up to the 3 litre (middle)
level line embossed mark on the rear wall.
9.2.4. Set the toggle switch to LO and verify the POWER ON LED is illuminated.
9.2.5. When the POWER ON LED goes off again (i.e., water is at selected
temperature), set the toggle switch to the off position.
9.2.6. Using the pull-action tap, half fill the inner container with heated water from
the outer container.
9.2.7. Using a field mess spoon, add two spoonfuls of hand dishwashing compound
to both containers and stir vigorously to produce suds.
Note: In paragraph 9.2.8 retain the wash water if the cover and / or the
main case are to be cleaned.
9.2.8. Clean the pull-action tap by draining off one canteen cupful of the outer
container wash water and discard.
9.2.9. Using a scrubbing brush or a scouring pad, scrub both containers until they
are free of any persistent food residue and / or discolouration.
9.2.10. Discard the water contents of both containers.
9.2.11. Half fill the outer container with clean potable water and rinse off all traces of
hand dishwashing compound.
9.2.12. Flush the pull action tap by draining of the outer container water contents into
a receptacle of suitable capacity. Discard drained water.
9.2.13. Rinse the inner container in clean, potable water to remove all traces of hand
dishwashing compound.
9.2.14. Allow both containers to air dry.
Note: To clean the cover, perform the procedure in sub paragraph. 5.2.16
9.2.15. Return the HW & R to normal service.
Cleaning the Cover.
9.2.2. Remove any loose food from the inner and outer containers by pre-scraping.
9.2.3. Fill the outer container with clean , potable water up to the 3 litre (middle) level line
embossed mark on the rear wall.
9.2.4. Set the toggle switch to LO and verify the POWER ON LED is illuminated.
9.2.5. When the POWER ON LED goes off again (i.e., water is at selected temperature), set
the toggle switch to the off position.
9.2.6. Using the pull-action tap, half ll the inner container with heated water from the
outer container.
9.2.7. Using a eld mess spoon, add two spoonfuls of hand dishwashing compound
to both containers and stir vigorously to produce suds.
Note: In paragraph 9.2.8 retain the wash water if the cover and / or the main
case are to be cleaned.
9.2.8. Clean the pull-action tap by draining off one canteen cupful of the outer container
wash water and discard.
9.2.9. Using a scrubbing brush or a scouring pad, scrub both containers until they are free
of any persistent food residue and / or discolouration.
9.2.10. Discard the water contents of both containers.
9.2.11. Half ll the outer container with clean potable water and rinse off all traces of
hand dishwashing compound.
9.2.12. Flush the pull action tap by draining of the outer container water contents into
a receptacle of suitable capacity. Discard drained water.
9.2.13. Rinse the inner container in clean, potable water to remove all traces of hand
dishwashing compound.
9.2.14. Allow both containers to air dry.
Note: To clean the cover, perform the procedure in sub paragraph. 9.2.19
9.2.15. Return the HW & R to normal service.

17
9.2.16. To prevent the ingress of liquid into the interior of the cover, block off the
small steam hole in the seal retaining plate using an easily removable means.
(e.g. tapered wooden peg of suitable size).
9.2.17. Remove any loose food from the seal retaining plate and cover seal by prescraping.
9.2.18. Using a scrub brush or a scouring pad, scrub the seal retaining plate until it is
free of any persistent food residue and / or discolouring.
9.2.19. Wash the cover with the hand washing compound / heated water solution
retained from previously taking care not to avoid splashing or immersing the
pressure release valve.
9.2.20. Allow cover to air dry.
9.2.21. On the cover, unblock the small steam hole in the seal plate.
9.2.22. Remove any loose food from the main case seal by pre-scraping.
9.2.23. Wipe the case seal with a clean cloth which has been soaked in a hand dishwashing
compound / heated water solution.
9.2.24. Wipe the case seal with a damp cloth to remove all traces of hand dishwashing
compound.
9.2.25. Clean the main case using a cleaning cloth and the hand dishwashing compound /
heated water solution previously retained. Take care to avoid splashing the control
panel.
9.2.26. Rinse the main case in clean, potable water to remove all traces of hand dishwashing
compound taking care to avoid splashing the control panel.
9.2.27. Allow main case to air dry.
Page 17 of 24 M7819 Issue 4.2
9.2.16. To prevent the ingress of liquid into the interior of the cover, block off the
small steam hole in the seal retaining plate using an easily removable means.
(e.g. tapered wooden peg of suitable size).
9.2.17. Remove any loose food from the seal retaining plate and cover seal by pre-
scraping.
9.2.18. Using a scrub brush or a scouring pad, scrub the seal retaining plate until it is
free of any persistent food residue and / or discolouring.
9.2.19. Wash the cover with the hand washing compound / heated water solution
retained from previously taking care not to avoid splashing or immersing the
pressure release valve.
9.2.20. Allow cover to air dry.
9.2.21. On the cover, unblock the small steam hole in the seal plate.
Cleaning the Main Case.
9.2.22. Remove any loose food from the main case seal by pre-scraping.
9.2.23. Wipe the case seal with a clean cloth which has been soaked in a hand
dishwashing compound / heated water solution.
9.2.24. Wipe the case seal with a damp cloth to remove all traces of hand
dishwashing compound.
9.2.25. Clean the main case using a cleaning cloth and the hand dishwashing
compound / heated water solution previously retained. Take care to avoid
splashing the control panel.
9.2.26. Rinse the main case in clean, potable water to remove all traces of hand
dishwashing compound taking care to avoid splashing the control panel.
9.2.27. Allow main case to air dry.

Sanitising the HW & R unit.
9.2.28. Fill the outer container with clean, potable water up to the 3 litre (middle) level
line embossed mark on the rear wall.
9.2.29. Set the toggle switch to LO and verify that the POWER ON LED is on.
9.2.30. When the POWER ON LED goes off again (i.e., water is at selected temperature), set
the toggle switch to OFF.
9.2.31. Fit the cover onto the main case ensuring that it is properly closed and secured by the
latch.
9.2.32. Turn off the power supply then disconnect the power supply cable from the control
panel.
9.2.33. Remove the HW & R from the host vehicle, place upright in a suitable work
location then unlatch and remove the cover.
9.2.34. Using a eld mess spoon, add one spoonful of food service disinfectant to the
heated water in the outer container and stir thoroughly until fully dissolved.
9.2.35. Wait ve minutes then drain-off one canteen cupful of the food service
disinfectant/heated water solution through the pull-action tap and discard.
9.2.36. Using the pull-action tap, drain-off the food service disinfectant/heated water
solution into the inner container until the level in the outer container falls to the
1.18 litres line embossed on the rear wall.
9.2.37. Fit the inner container into the main case taking care to not spill the food
service disinfectant/heated water solution.
9.2.38. To prevent the ingress of liquid into the interior of the cover, block-off the
small steam hole in the seal retaining plate using an easily removable means
(e.g., tapered wooden peg of suitable size).
18
Page 18 of 24 M7819 Issue 4.2
Sanitising the HW & R unit.
9.2.28. Fill the outer container with clean, potable water up to the 3 litre (middle) level
line embossed mark on the rear wall.
9.2.29. Set the toggle switch to LO and verify that the POWER ON LED is on.
9.2.30. When the POWER ON LED goes off again (i.e., water is at selected
temperature), set the toggle switch to OFF.
9.2.31. Fit the cover onto the main case ensuring that it is properly closed and
secured by the latch.
9.2.32. Turn off the power supply then disconnect the power supply cable from the
control panel.
9.2.33. Remove the HW & R from the host vehicle, place upright in a suitable work
location then unlatch and remove the cover.
9.2.34. Using a field mess spoon, add one spoonful of food service disinfectant to the
heated water in the outer container and stir thoroughly until fully dissolved.
9.2.35. Wait five minutes then drain-off one canteen cupful of the food service
disinfectant/heated water solution through the pull-action tap and discard.
9.2.36. Using the pull-action tap, drain-off the food service disinfectant/heated water
solution into the inner container until the level in the outer container falls to the
1.18 litres line embossed on the rear wall.
9.2.37. Fit the inner container into the main case taking care to not spill the food
service disinfectant/heated water solution.
9.2.38. To prevent the ingress of liquid into the interior of the cover, block-off the
small steam hole in the seal retaining plate using an easily removable means
(e.g., tapered wooden peg of suitable size).

19
9.2.39. Fit the cover onto the main case ensuring that it is properly closed and
secured by the latch.
9.2.40. Temporarily invert the HW & R to allow the food service disinfectant/heated
water solution to reach all internal surfaces then return it to the upright position.
Note: Allow the HW & R to stand upright for a minimum period of 20 minutes
before proceeding to step (9.2.41).
9.2.41. Unlatch and remove the cover then remove the inner container and discard
the food service disinfectant/heated water solution.
9.2.42. Using the pull-action tap, drain-off the food service disinfectant/heated water
solution from the outer container.
9.2.43. Half-ll the outer container with clean, potable water and rinse off all traces of
food service disinfectant.
9.2.44. Flush the pull-action tap by draining-off the outer container rinse water into a
receptacle of suitable capacity and discard.
9.2.45. Rinse the inner container in clean, potable water to remove all traces of food service
disinfectant.
9.2.46. Allow the cover and both containers to air dry.
9.2.47. On the cover, unblock the small steam hole in the seal retaining plate.
9.2.48. Fit the HW & R in the host vehicle, connect the power supply cable to the control
panel. Turn on the power supply.
9.2.49. Return the HW & R to normal service.

20
9.3. Fault code conditions.
Fault Condition: If during HW & R operation, a RED Lamp is illuminated on the control
panel, then a fault condition as indicated in the Table below has occurred and the
appropriate remedial action will be necessary. Switch the HW & R OFF and allow it to cool
Replenish water if boil dry condition is evident, or action vehicle battery charging as and
when appropriate.
In the event of an error, the HW & R locks out with the heaters turned off. There are several
possible causes of an error condition. The error code is indicated by the number of red
ashes given out by the front panel LED.
Error code Fault Corrective action
Flashes
1 Input power is under voltage. Charge vehicle battery. Check output voltage
is within supply voltage range.
2 Input power is over voltage. Check output voltage is within supply
voltage range.
3 Boil Dry detected. Switch off the HW & R to cool. Rell with
fresh potable water.
4 Electronics over temperature. Switch off the HW & R to cool. If fault is
repeated have HW & R serviced.
(Fault most likely in ambient
conditions over 35°C when
used continuously).
5 Unused at present.
6 Vessel – bottom thermistor Return HW & R for fault repair.
open circuit.
7 Heater block thermistor open Return HW & R for fault repair
circuit.
8 PCB thermistor open circuit. Return HW & R for fault repair.
9 Illegal switch change. Hi / Lo switch ipped from low to high
without allowing sufcient time in off
(Hi / Lo switch ipped from position.
low to high without allowing
sufcient time in off position). Turn HW & R switch to off position
and restart after 5 seconds.
If multiple errors occur, only one is reported. The rst true error in the following list will
override any following faults.
(8) Pcb Thermistor open circuit.
(7) Heater block Thermistor open circuit.
(6) Vessel – bottom Thermistor open circuit.
(9) Illegal switch change.
(4) Electronics over temperature.
(3) Boil Dry detected.
(2) Input power is over voltage.
(1) Input power is under voltage.