Worcester Greenstar Danesmoor External Regular User manual

UK
User Instructions
Floor standing oil-fired condensing boiler using conventional flue and room sealed flue
Greenstar Danesmoor External Regular 2022+ and
External System 2022+ 12/18, 18/25 & 25/32
6720809792-00.1Wo
For fully pumped open vent and sealed central heating systems and domestic hot water cylinders.
For use with Kerosene (Class C2) only.
6 721 844 015 (2022/01) UK/IE

2
Preface
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
Preface
Please read these instructions carefully
These instructions are applicable to the Worcester, Bosch
Group appliance model stated on the front cover only.
These instructions apply in the UK only and must be followed
except for any statutory obligation.
After installation please leave this User instruction Manual,
Installation, Commissioning and Servicing Instructions and
completed Benchmark Checklist with the user.
Dedicated to heating comfort
Thank you for purchasing a Greenstar oil-fired condensing
appliance manufactured by Worcester, Bosch Group. The
company prides itself on manufacturing appliances to the
strictest quality control standards throughout every stage of
production.
Worcester, Bosch group has led the field in innovative
appliance design and performance for over 50 years. This
heritage means all our products are of exceptional quality and
proven reliability.
The Greenstar range in particular is extremely energy efficient,
offering you economical running costs and value for money. It is
amongst the top energy rated appliances available.
There is also the reassurance of our parts and labour guarantee
- backed up by Worcester Total Cover, an optional complete
maintenance scheme to keep your appliance operating at peak
condition and efficiency.
Contents
1 Key to symbols and safety instructions . . . . . . . . . . . 3
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . 3
2 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Energy efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 User caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Using your boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Operating the boiler . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1Switching the boiler on/off . . . . . . . . . . . . . . . . . . 6
3.2.2Setting the heating temperature . . . . . . . . . . . . . 6
3.2.3Controlling the central heating . . . . . . . . . . . . . . . 6
3.2.4Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Maintaining your boiler . . . . . . . . . . . . . . . . . . . . . 7
4.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 External filling loop (sealed system only) . . . . . . . . . 8
6 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1 Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.2 Boiler installation . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.1 Fault conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Fault or breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Energy saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9.1 Tips on energy saving . . . . . . . . . . . . . . . . . . . . . 14
10 Your guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
11 Environment/disposal . . . . . . . . . . . . . . . . . . . . . . . . 15

3
Key to symbols and safety instructions
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
1 Key to symbols and safety instructions
1.1 Key to symbols
Warnings
The following keywords are defined and can be used in this
document:
•NOTICE indicates a situation that could resultin damage to
property or equipment.
•CAUTION indicates a situation that could result in minor to
medium injury.
•WARNING indicates a situation that could result in severe
injury or death.
•DANGER indicates a situation that will result in severe
injury or death.
Important information
Additional symbols
Examples of additional symbols used
A numbered step in an action sequence
A sequence of numbered steps or actions carried out in a
specific order to complete a task.
1. First action
2. Second action
3. Third action
etc.
A step in an action sequence
A sequence of defined actions or steps carried out in order to
complete a task.
▶Action
▶Nextaction
▶etc.
A reference to a related part in the document or to other
related documents.
To refer the reader to a specific figure/table/section within the
manual.
e.g. figure 1.
A reference number to identify or refer to a part or item.
In a related figure, items or parts identified by a sequential
number.
List entries, first and second levels
• A single component/item
• A component/list, made up of multiple parts/items.
– Sub component or sub-list of main component/list.
–etc.
1.2 Safety instructions
These operating instructions are intended for the user of the
heating system.
▶ Read any operating instructions (boiler, heating controls,
etc.) carefully before operation and keep them.
▶ Observe the safety instructions and warnings.
Oil fumes or leaks from the appliance
If you smell oil fumes, observe the following rules.
▶Extinguishanynakedflames
▶ Isolate the electrical supply
▶ Isolate the fuel supply to the boiler
▶ Contact an approved contractor and have the fault rectified
Health and safety
The appliance contains no asbestos and no substances have
been used in the construction process that contravene the
COSHH Regulations (Control of Substances Hazardous to
Health Regulations). Where applicable, the CE mark indicates
compliance with relative EU Directives.
Combustion air/room air
The air in the installation room must be free of combustible or
chemically aggressive substances.
▶ Do not use or store combustible or explosive materials
(paper, propellants, thinners, paints, etc.) within the
vicinity of the appliance.
Safety instructions in this document are
framed and identified by a
warning triangle which is printed on a grey
background.
This symbol indicates important information
where there is no risk to people or property.
Symbol Meaning
1. a numbered step in an action sequence
▶ a step in an action sequence
a reference to a related part in the document or to
other related documents
a reference number to identify or refer to a part or
item
•alistentry
– a list entry (second level)
Table 1
1

4
General Information
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
Safety of electrical devices for
domestic use and similar purposes:
The following requirements apply in
accordancewith EN 60335-1 in order to
prevent hazards from occurring when
using electrical appliances:
“This appliance can be used by children
of 8 years and older, as well as by people
with reduced physical, sensory or
mental capabilities or lacking in
experience and knowledge, if they are
supervised and have been given
instruction in the safe use of the
appliance and understand the resulting
dangers. Children shall not play with the
appliance. Cleaning and user
maintenance must not be performed by
children without supervision.”
“If the power cable is damaged, it must
be replaced by the manufacturer, its
customer service department or a
similarly qualified person, so that risks
are avoided.”
Intended use
This appliance must only be used as a heat appliance in an open
vented or sealed hot water heating system for domestic
purposes.
Any misuse or unauthorised modifications to the appliance,
flue or associated accessories and heating system will
invalidate the guarantee.
• Do not modify the appliance or flue system in any way.
Worcester, Bosch Group accepts no liability arising from any
such actions. This does not affect your statutory rights.
2 General Information
2.1 Energy efficiency
Energy efficiency information is given in the Installation,
Commissioning and Servicing Instructions supplied with the
appliance.
2.2 Servicing
The Service Checklist can be found at the rear of the boiler’s
installation instructions. It will be required in the event of any
guarantee work and may be required by the local Building
Control Inspector.
▶ Have the boiler serviced regularly by a competent, OFTEC
registered engineer.
▶ Ensure that the service engineer completes the Service
Record, at the rear of the Installation, Commissioning and
Servicing Instruction manual, after each service.
▶ Have any work carried out only by a competent, OFTEC
registered engineer.
▶ Always use original spares, to help maintain the efficiency,
safety and reliability of the appliance.
2.3 User caution
• It is forbidden for any interference with the appliance other
than those actions allowed in this document.
CAUTION: Incorrect use
▶ Any incorrect use can result in danger to
the householder.

5
Using your boiler
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
3Usingyourboiler
Remove the front panel to gain access to the boiler controls and reset buttons.
Release the latches at the base of the front panel, using the key provided, lower the panel and pull towards you to remove.
Refer to the figure below.
Store the front panel safely away from the working area.
3.1 Controls
1. Temperature control
2. Pressure gauge (System boiler only)
3. Boiler mode indicator
4. Mode switch
5. Reset button - Heating (behind the front panel)
6. Reset button - Flue thermostat (behind the front panel)
7. Lockout indicator / reset button (located behind the front panel on the burner control box see ‘reset button locations’ below).
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6
Using your boiler
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
3.2 Operating the boiler
3.2.1 Switching the boiler on/off
▶ Remove the front panel to gain access to the controls.
▶ To switch on the boiler; turn on the water, oil and electricity
supply to the boiler.
▶ Check the programmer/timer is correctly configured and is set to ON.
▶ Set the room thermostat to the desired setting.
▶ Open and set thermostatic radiator valves as required.
▶ Turn the boiler water temperature control to the required setting.
▶ To switch off the boiler; turn the programmer/timer to OFF for heating and hot water.
If the boiler is left unused and exposed to freezing conditions; shut off all the mains supplies, isolate the boiler and drain the
system and boiler.
3.2.2 Setting the heating temperature
▶ Turn the control clockwise to increase the water temperature. The demand light will illuminate until the water reaches the set
temperature. Once the set temperature is reached the demand light extinguishes
▶ Turn the control anti-clockwise to reduce the water temperature.
The minimum and maximum ranges of the temperature control positions are approximately 55°C to 81°C.
3.2.3 Controlling the central heating
▶ Set the programmer/timer to the correct time with the required ON/OFF periods.
▶ Turn the room thermostat to the temperature required.
▶ Set the thermostatic radiator valves to achieve the required temperature for each room.
3.2.4 Frost protection
▶ The appliance has a built-in frost thermostat to protect the internal components.
▶ Frost thermostats can be wired into the boiler.
▶ Frost protection should be fitted to the system where the system is most exposed and at risk of freezing.
If there is no hot water or heating, check page 11 and 12 for fault condition guidance.
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7
Maintenance
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
4Maintenance
4.1 Maintaining your boiler
Your new boiler represents a long term investment in a reliable,
high quality product.
In order to realise its maximum working life and to ensure it
continues to operate at peak efficiency and performance, it is
essentialthat servicing and maintenancechecks are performed
at least once a year by an OFTEC engineer or other suitably
qualified person.
If you would like to know more about servicing options from
Worcester, Bosch Group, please visit worcester-bosch.co.uk.
Please tick the appropriate box on your warranty registration
card for further details of the Worcester, Bosch Group Service
Contract.
When your boiler requires servicing please contact a
Worcester, Bosch Group contact centre (see the back cover for
details).
In addition to the service contract we are pleased to offer a one
-off annual service or breakdown call out for your boiler.
Maintenance tips:
• Regularly check the oil level in the tank
• Do not obstruct the flue outlet or the air inlet
• Regularly check the system pressure gauge, see chapter 5
Use in hard water areas
In exceptionally hard water areas a device to prevent scale
formation may be fitted. Installation of a scale inhibitor
assembly should be in accordance with the requirements of the
local water company.
An isolating valve should be fitted to allow for servicing.
4.2 Servicing
You must have the boiler regularly serviced by a competent,
qualified OFTEC registered engineer using approved spares, to
help maintain the economy, safety and reliability of the boiler.
The boiler should be serviced once each year after installation
unless the installation conditions and usage demand more
frequent services.
Ensure that the service engineer completes
the Service Record in the checklist after each
service.
The completed checklist will be required in the
event of any warranty work and may be
required by the local Building Control
Inspector.
The checklist and service interval record can
be found at the rear of the Installation,
Commissioning and Servicing Instructions.

8
External filling loop (sealed system only)
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
5 External filling loop (sealed system only)
This appliance is fitted to a sealed heating system which is pressurised. Your installer will advise you of the minimum and maximum
pressure indicated on the pressure gauge.
▶ Check regularly that the pressure is maintained.
▶ If the pressure gauge reads less than 1 bar then the system requires re-charging.
– Check for leaks on heating system (pipe work and radiator valves).
▶ Contact your installer or maintenance engineer if a permanent significant decrease or increase in pressure is indicated on the
pressure gauge.
– Constantly having to re-pressurising the heating system should be investigated as the concentration of inhibitor in the
system will be reduced; this can result in corrosion within the heating system.
Once the external filling loop has been located, follow the instructions for re-pressurising the system.
1. Unscrew blanking cap.
2. Attach the hose to the valves, screw on hand-tight.
3. Turn the handle/screwdriver slot through 90° to open the valves.
4. The handle/screwdriver slot will be in-line with the valves
Fig. 1 External filling loop
5. When the pressure reaches between the 1 and 1.5 bar marks (zone A), turn the handle/screwdriver slot back, through 90°, to
close the valve.
6. The handle/screwdriver slot will be at 90° to the valves
7. Remove the hose and replace the blanking caps.
If the pressure gauge reads more than 1.5 bar as a result of over filling, bleed one radiator until the pressure gauge returns to
between 1 and 1.5 bar.
2
3
1
04
bar
1
A
Min
1 bar
1.5 bar
Max
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9
General information
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
6 General information
6.1 Fuel
This appliance is designed to use (Class C2) Kerosene, no other
fuel must be used.
6.2 Boiler installation
Boiler location
To prevent “wetting” it is recommended that the flue terminal
faces away from walls.
This boiler is only suitable for installing externally at a suitable
location onto a fixed, permanent, rigid surface capable of
supporting the boiler weight. Wood and tarmac hard-standings
are not recommended.
The boiler must be installed on a flat level surface to ensure that
condensate does not enter the primary heat exchanger.
The cabinet is not load bearing, and only provides weather
protection for the boiler inside.
There must be sufficient hard standing and access around the
boiler for servicing.
WARNING:
▶ Externalequipmentoperating at230Volts
must not be serviced or repaired during
adverse weather conditions.
▶ Do not use pressure washers or steam
cleaners on this appliance or cabinet.
WARNING: Boiler installation:
▶ This boiler must not be installed where
here is a potential for excessive ground
water coverage.
▶ Never allow the flue terminal or air inlet to
become obstructed by plants or any other
objects.
600mm
FRONT
2500mm
2500mm
600mm
600mm
50mm
2500mm
600mm
10mm
65mm 45mm
BASE
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10
General information
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
6.3 General notes
To get the best from your boiler, read these instructions
carefully.
Central heating system
During the first few hours of operation of the central heating
system, check that all radiators are being heated at an even
rate. If the top of a radiator is at a lower temperature than the
bottom then it should be vented by releasing air through the
venting screw at the top of the radiator. Ask your installer to
show you how this is done. Repeated venting will reduce the
quantity of water in the system and this must be replenished for
safe and satisfactory operation of the boiler.
When excessive venting or water leaks are found in the system
you must contact a service engineer to inspect the installation
and rectify any fault.
Only use additives compatible with the boiler and system. Use
of incompatible additives can cause damage and will invalidate
the boiler guarantee.
Condensate drain
This is a condensing boiler and the terminal will, at times give
out a plume of water vapour. This is quite normal.
The boiler also produces quantities of condensate which is
discharged regularly via a pipe to drain.
This pipe must not be blocked or altered in any way.
Clearances, see section 6.2
Your installer will have provided adequate space around the
boiler for safety and servicing access.
Do not restrict this space with the addition of trellises, fences
etc. next to the boiler.
Room thermostat
A room temperature controller must be fitted to control the
central heating. Refer to instructions supplied with the
thermostat for information on siting and setting.
Thermostatic radiator valves
It is recommended that this type of valve is fitted to all but one
of the radiators (or at least those in the sleeping
accommodation). The remaining radiator, which must be
where the room thermostat is located, should be un-controlled
and must be left open.

11
Fault finding
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
7Faultfinding
In the event that the appliance stops functioning or does not perform as expected, you can carry out a few simple checks. These
checks are some of the most common causes and are listed in the table below. Should the problem persist, then it will be necessary
to contact Worcester, Bosch Group.
Problem Cause Remedy
Desired room
temperature is not
reached
Thermostatic radiator valve(s) set too low ▶ Increase thermostatic radiator valve setting(s).
Temperature control for central heating flow on
boiler set too low
▶ Increase central heating flow temperature
control setting
Low temperature setting on the room thermostat ▶ Increase settings on room thermostat
Air trapped in heating system (System model) ▶ Bleed radiators and re-pressurise the heating
system
Low system water pressure (System model) ▶ Re-pressurise the system, refer to page 8
Desired room
temperature is too
high
Thermostatic radiator valve(s) are set too high ▶ Turn down thermostatic radiator valves/room
thermostat
Room thermostat is set too high ▶ Reduce the thermostat setting
▶ Reduce central heating temperature by turning
down the Central Heating control on boiler
Heating stays on for
too long
Clock is incorrectly set ▶ Check setting and adjust
Hot water
temperature too low
Temperature set too low on cylinder thermostat
control.
▶ Check setting and adjust
Air trapped in heating system (System model) ▶ Bleed radiators and re-pressurise the heating
system
Low system water pressure (System model) ▶ Re-pressurise the system, refer to page 8
Hot water
temperature too high
Temperature set too high on cylinder thermostat
control.
▶ Check setting and adjust
System pressure low Leak within the heating system ▶ Check system for obvious leaks.
Table 2 Fault finding

12
Fault finding
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
7.1 Fault conditions
The ‘Boiler mode’ and ‘Lockout’ lights can indicate some basic
fault conditions:
1. Accessing controls:
▶ Undo the screws on the bottom of the front panel using the
tool provided. The panel can be removed by pulling out at
the base and then sliding down to disengage from the lid.
2. Normal operation:
Boiler mode light ON
The appliance is in boiler mode, with a demand for heat from
the controls.
3. Both lights ON:
Boiler not firing
▶ Check the level in the oil tank.
▶ Press the Reset button (A). The boiler should fire.
▶ If there is no response, wait 2 minutes and press the Reset
Button (A) again.
▶ If Lockout light stays on, do not attempt further resets.
Contact your Service Engineer for advice.
4. Boiler mode light ON, lockout light OFF:
Boiler not on - No heating/hot water
▶ Press Reset Button (B), press Reset Button (C) both are
below the fascia.
▶ If the boiler remains off, contact your Service Engineer for
advice.
▶ If this fault re-occurs contact your Installer or Service
Engineer.
5. Both lights OFF:
Boiler not on - No heating / hot water
▶ Ensure there is power supply to the boiler.
▶ Check the programmer is set to ON and thermostat is
calling for heat.
▶ Ensure that the Service switch is in Boiler mode.
▶ If there is power supply to the boiler contact your service
engineer for advice.
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1. Accessing controls
2. Normal operation
3. Both lights ON
4. Boiler mode light ON, Lockout light OFF
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Fault or breakdown
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
8 Fault or breakdown
This boiler is supported in mainland UK by Worcester, Bosch
Group, part of Bosch Thermotechnology Ltd.
Specialist service engineers are available to attend a
breakdown occurring on this appliance.
• No charge will be made for parts and/or labour providing:
An appliance fault is found and the appliance is within the
guarantee period. Reasonable evidence of this must be
supplied on request. i.e. the Benchmark Checklist.
• A call-out charge will be made where:
– The appliance is outside the guarantee period.
– Evidence cannot be provided that the first year service
inspection has been carried out (i.e. an entry in the
Benchmark Checklist).
– Our Field Service Engineer finds no fault with the
appliance.
– The cause of breakdown is misuse or with other parts of
your plumbing/heating system, or with equipment not
supplied by Worcester, Bosch Group.
– Before calling the help line check the central heating
system pressure. If the pressure is low then check for
obvious leaks around the heating system; repair before
the system is re-pressurised.
For further support refer to the trouble shooting tool on
the website.
If the boiler fails to give complete satisfaction, please
check the following points before calling for a service
engineer:
1. Oil level in the tank
2. Power to the boiler
3. All control settings
Technical support
In the event of a appliance fault or breakdown please contact
Worcester, Bosch Group appointments team on 0330 123
9339.
Your advisor will arrange for an engineer to call with the
minimum of delay; under normal circumstances this will be
from 1 - 3 working days (excluding weekends and bank
holidays) for priority breakdown situations (no hot water and/
or heating).
Boiler data label
The data label [1] can be found on the inside of the left hand
side panel.
To access, remove the front panel:
▶ Release the two latches at the bottom of the front panel
using the key provided. The panel will drop down and can
be carefully removed.
To replace front panel:
▶ Push the front panel up behind the top panel, push in and
secure the latches in place with the key.
(You can record this information on the inside back cover of
this manual.)
Invoices for attendance and repair work
carried out on this appliance by any third party
will not be accepted.
No appliance fault is found on over 30% of
all service calls.
In the case of a suspected fault, refer to the
fault finding section of this guide.
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14
Energy saving
Greenstar Danesmoor External 2022+ & External System 2022+– 6 721 844 015 (2022/01)
9 Energy saving
9.1 Tips on energy saving
Room thermostats
Reducing the setting of the room thermostat by 1°C can reduce
fuel consumption by up to 10%.
New control systems
Upgrade your heating control system with the latest equipment
available. The minimum level of control for a heating system is
a programmer, interlocking room thermostat and thermostatic
radiator valves.
Radiators
More often than not radiators will be sited underneath a
window, so the warm air from the radiator heats the colder
incoming air from the window.
The performance of the radiator will be affected if the curtains
are allowed to drape over the radiator or shelves are fitted
above it.
The positioning of furniture and tables in front of the radiator
should also be avoided.
It is advisable to manually adjust all radiator valves every 2-3
months to prevent them from sticking. It is also important that
the plastic tops of all valves are always in position and not
cracked or damaged to help prevent accidents. Care should be
taken when vacuum cleaning carpets to avoid damage to valves
and pipework.
The heating system and the outputs of the radiators have been
carefully selected by your installer. The temperature
obtainable in any given room is dependent on all radiators
being operated at the same time. If you decide to turn off
radiators in unused rooms, spare bedrooms etc., you may
experience slightly lower room temperatures in rooms adjacent
to unheated rooms.
Heating economically
The boiler is designed to provide a high level of comfort while
keeping oil consumption and the resulting environmental effect
as low as possible.
The central heating control on the boiler should be set as low as
possible while still maintaining a comfortable room
temperature.
The temperature of each room can be set individually using the
thermostatic radiator valves (except theprimary room with the
room thermostat).
Roof insulation
Around 30% of the heat loss from a property is through the
roof. Replace any old insulation with new insulation, preferably
to a minimum thickness of 200mm.
Window frames
Single glazed windows, particularly those with steel frames,
can lose a great deal of heat.
Consideration should be given to replacement with uPVC or
wooden framed double glazed units.
Curtains
Lined curtains, or heavier full length curtains can provide
excellent insulation. However, always ensure that the curtains
do not drape over radiators.
Draughts
Try to ensure that draughts around doors, windows,
letterboxes and keyholes etc., are reduced by using a suitable
draught excluder.

15
Your guarantee
Greenstar Danesmoor External 2022+ & External System 2022+ – 6 721 844 015 (2022/01)
10 Your guarantee
This appliance has a guarantee against faulty materials or
workmanship from the date of installation subject to the
following terms and conditions:
• During the period of this guarantee any components of the
appliance which are proven to be faulty or defective in
manufacture will be exchanged or repaired free of charge
by Bosch Thermotechnology Ltd.
• The householder may be asked to prove the date of
installation, that the appliance was correctly
commissioned and, where appropriate, the first year's
service has been carried out to the satisfaction of Bosch
Thermotechnology Ltd., when requested. These should be
documented as a part of the Benchmark Checklist.
• The appliance has been used only for the normal domestic
purposes for which it was designed.
This guarantee does not affect your statutory rights.
Guarantee registration
Your Greenstar appliance carries a guarantee against faulty
material or manufacturer subject to Terms and Conditions.
To read the full Terms & Conditions please visit us on-line at
www.worcester-bosch.co.uk/guarantee. The Guarantee
Registration form is available on this same page and can be
completed and submitted electronically.
Alternatively, please telephone one of our Guarantee
Registration advisors on 0330 123 2552.
Your statutory rights are not affected by the manufacturers
guarantee.
For you records:
[*] Refer to the boiler data label inside the casing
11 Environment/disposal
Environmental protection is a fundamental corporate strategy
of the Bosch Group.
The quality of our products, their economy and environmental
safety are all of equal importance to us and all environmental
protection legislation and regulations are strictly observed.
We use the best possible technology and materials for
protecting the environment taking account of economic
considerations.
Packaging
We participate in the recycling programmes of the countries in
which our products are sold to ensure optimum recycling.
All of our packaging materials are environmentally compatible
and can be recycled.
Model
Serial number*
Type/size
Date of
installation
Installer details

WORCESTER, BOSCH GROUP:
TECHNICAL SUPPORT: 0330 123 3366
APPOINTMENTS: 0330 123 9339
SPARES: 0330 123 9779
LITERATURE: 0330 123 9119
TRAINING: 0330 123 0166
SALES: 0330 123 9669
Worcester, Bosch Group
Cotswold Way, Warndon, Worcester WR4 9SW.
Tel. [phone]
Worcester, Bosch Group is a brand name of
Bosch Thermotechnology Ltd.
worcester-bosch.co.uk
6 721 844 015 (2022/01)
General checks before calling a Service engineer
Check the:
1. Oil level in the tank?
2. Power to the boiler?
3. Control settings?
Please read the fault section of the manual before
contacting our service team.
No boiler fault is found on over 30%
of all service call outs.