Winterhalter STR series User manual

Rack conveyor dishwashing machine
STR
Operating instructions

1
Operating Instructions
for Winterhalter STR Rack Conveyor Dishwashing Machine
(translation of the original German operating instructions)
Table of contents
1About these instructions.......................................................................................................................2
2Intended use...........................................................................................................................................2
2.1 Non-intended use.....................................................................................................................................3
3Safety notes............................................................................................................................................3
3.1 General safety notes................................................................................................................................3
3.2 Electrical safety........................................................................................................................................4
3.3 Maintenance and repair work...................................................................................................................4
3.4 Handling chemicals (detergent, rinse aid, descaler, etc.)........................................................................4
3.5 Daily cleaning and care............................................................................................................................5
4Before working with the machine.........................................................................................................5
4.1 Checking for completeness......................................................................................................................5
4.2 Initial installation.......................................................................................................................................5
5Product description ...............................................................................................................................5
6Operating and control elements...........................................................................................................6
7Operation ................................................................................................................................................6
7.1 Preparing for operation ............................................................................................................................6
7.1.1 Before switching on the machine.............................................................................................................6
7.1.2 Switching on.............................................................................................................................................7
7.2 Washing ...................................................................................................................................................7
7.2.1 Starting/stopping transport.......................................................................................................................7
7.2.2 Washing ...................................................................................................................................................8
7.2.3 Machine door open...................................................................................................................................8
7.2.4 Breaks in operation ..................................................................................................................................8
7.3 Washing with a decreased rinse temperature (special equipment).........................................................9
7.4 Displaying the temperatures on the control panel....................................................................................9
7.5 The table limit switch................................................................................................................................9
7.6 Routine checks.......................................................................................................................................10
7.7 Switching off the machine......................................................................................................................10
8Maintenance and care..........................................................................................................................11
8.1 Daily .......................................................................................................................................................11
8.1.1 Starting the drainage programme ..........................................................................................................11
8.1.2 Interrupting the drainage program..........................................................................................................11
8.1.3 Continuing the drainage program...........................................................................................................11
8.1.4 Manual cleaning of the machine interior................................................................................................12
8.1.5 Cleaning the outside of the machine......................................................................................................13
8.1.6 Checking external water treatment ........................................................................................................13
8.2 Monthly...................................................................................................................................................13
8.2.1 Cleaning the dirt trap..............................................................................................................................13
8.2.2 Descaling................................................................................................................................................13
8.3 Maintenance by customer service..........................................................................................................14
9Taking the machine out of service for a longer period of time.......................................................14
10 Malfunctions.........................................................................................................................................15
10.1 Malfunctions; display on the control panel.............................................................................................15
10.2 Malfunctions...........................................................................................................................................17
11 Technical data ......................................................................................................................................18
11.1 Technical data........................................................................................................................................18
11.2 Emissions...............................................................................................................................................18
12 Connecting external dosing equipment (detergent, rinse aid)........................................................19
12.1 Installing the conductivity electrode .......................................................................................................19
12.2 Installing the dosing tube (detergent).....................................................................................................19
12.3 Installing the dosing tube (rinse aid) ......................................................................................................20
12.4 Electrical connection ..............................................................................................................................20
12.5 Commissioning the dosing equipment...................................................................................................20

About these instructions
2
1 About these instructions
These operating instructions will give you a quick overview of the main functions and safe operation of your
warewasher. Keep the operating instructions accessible. On our website www.winterhalter.biz/manuals you
can find the operating instructions in electronic form too.
Please carefully observe the safety notes listed here (3).
Chapter 12 describes how the dosing equipment for detergent and rinse aid must be connected.
This chapter is intended for service technicians authorised by Winterhalter.
The following symbols are used in these instructions:
Symbol
Meaning
Danger
Warning against potential serious or fatal injuries to persons if the precautionary measures
described are not taken.
Warning
Warning against potential minor injuries to persons or material damage if the precautionary
measures described are not taken.
Caution
Warning against possible defects or damage of the product if the precautionary measures
described are not followed.
Carefully read through the safety notes and operating instructions in this manual before
working with this machine.
IMPORTANT
Important information is provided here.
INFO
Useful information is given here.

This symbol indicates instructions.

This symbol indicates the results of your actions.

This symbol indicates itemisations.

This symbol refers to a chapter with more detailed information.
2 Intended use
The STR rack conveyor dishwashing machine is to be used exclusively for washing
dishes such as plates, cups, cutlery and trays in catering and similar companies.
The dishes are sorted in racks only and are transported through the machine. Always
wash using washing racks suitable for the dishes. Never wash without a washing rack.
We recommend that you only wash glasses if the rinse temperature can be lowered,
since doing so can prevent premature glass corrosion. Special equipment.
The STR rack conveyor dishwashing machine is a technical piece of equipment for
commercial use and is not intended for private use.

Safety notes
3
2.1 Non-intended use
The water in the warewasher may not be used as drinking water.
Children must not play with the appliance.
Cleaning and user maintenance by children, should only be carried out under
supervision.
Do not use the warewasher to wash electrically heated devices or parts made of wood.
Do not wash without a wash rack.
Do not make any changes, additions or modifications to the device without the approval
of the manufacturer.
Winterhalter Gastronom GmbH does not assume liability for any damage caused due to
improper use of the warewasher.
3 Safety notes
3.1 General safety notes
Read through the safety notes and operating instructions in this manual carefully.
Winterhalter Gastronom GmbH does not assume liability or warranty in case of non-
compliance with these safety and operating instructions.
Use the warewasher only after you have read and understood the operating
instructions. Allow the Winterhalter Customer Service Department to provide information
about the operation and functioning of the warewasher.
Do not climb or sit on the opened hinged door.
Train the operating personnel as regards handling the machine and inform them about
the safety notes. Repeat the training sessions at regular intervals to prevent accidents.
For your safety, test the on-site residual current circuit breaker (FI) regularly by pressing
the test button.
Close the on-site water stop cock after the work is complete.
Switch off the on-site mains disconnector after the work is complete.
Keep the machine documents close to hand. The Winterhalter service technicians
require the circuit diagram for repairs.
Load sharp, pointed utensils so that they cannot injure anyone.
Keep children away from the machine. The interior of the machine holds a solution of
detergent in hot water at about 60°C.
Only use your fingers and not sharp objects to operate the control panel.
Do not open the machine door when it is washing. There is a risk that hot washing
solution could spray out. Switch the machine off first.
Do not place any towels or other objects on top of the machine, since suction openings
are located there and they must not be covered up.
Do not reach into the exhaust air pipe and do not cover the exhaust air pipe.
During washing, do not reach inside the machine at either the infeed or outfeed end.

Safety notes
4
3.2 Electrical safety
The electrical safety of this machine is guaranteed only if it is connected to a correctly
installed protective circuit and a residual current circuit breaker. It is crucial that this
basic safety requirement is tested and, in case of doubt, that the house installation is
checked by a qualified electrician.
Winterhalter cannot be held responsible for damage caused by a missing or broken
protective conductor (e.g. electrical shock).
3.3 Maintenance and repair work
When performing installation, maintenance and repair work, unplug the machine from
the mains supply.
Maintenance work and repairs may only be performed by authorised Winterhalter
service technicians. Improper maintenance or repairs may cause significant danger for
the user, for which Winterhalter is not liable.
Original spare parts must be used for repairs or to replace consumable parts. If original
spare parts are not used, the warranty is invalidated.
Operate this machine only when it is in perfect condition.
A damaged or leaking machine may endanger your safety. In case of danger and/or
defects, switch off the machine immediately. Switch off the on-site mains disconnector
(main switch). Only then is the machine without power.
Contact your installer or electrician if the on-site water or electricity supply is the cause
of the malfunction.
Contact an authorised service technician or your dealer if any other fault occurs.
If the mains cable is damaged, to prevent hazards it must be replaced by Winterhalter
or its Customer Service or another qualified person. The mains cable must be an oil-
resistant, encased and flexible wire. The wire type H07RN-F is recommended.
3.4 Handling chemicals (detergent, rinse aid, descaler, etc.)
When using chemicals, comply with the safety notes and recommended dosages
printed on the packaging.
Wear protective clothing, protective gloves and protective goggles when handling
chemicals.
Only use products that are suitable for commercial dishwashing machines. Such
products are marked accordingly. We recommend using products developed by
Winterhalter. These products are specially adapted for Winterhalter dishwashing
machines.
Do not mix different detergent products together as this could result in crystallisation
and consequently cause irreparable damage to the detergent dosing device.
Do not use any foaming products, e.g. hand soap, soft soap, manual wash-up cleaner.
These products may not enter the machine, even through pre-washing of the dishes.

Before working with the machine
5
3.5 Daily cleaning and care
Comply with the information on maintenance and care given in these instructions (8).
Put on protective clothing and protective gloves before holding parts that are covered
with tank water (filters, wash arms, curtains, etc.).
Do not spray the machine or direct vicinity (walls and floor) with a water hose, steam jet
or high-pressure cleaner.
When cleaning the floor, take care to avoid flooding the substructure of the machine, in
order to prevent the uncontrolled entry of water.
Use a water hose and a brush (not a pressure washer) for cleaning the interior of the
machine.
Do not use any scouring powder or abrasive cleaning agents.
During daily cleaning, make sure that no foreign objects that could start to rust have
been left in the interior of the machine; these objects could even induce corrosion of the
stainless steel material. Rust particles might come from non-stainless steel dishes,
cleaning aids, damaged wire racks or water pipes that do not have corrosion protection.
Clean the outside of the machine using a suitable stainless steel cleaner and a soft
cloth. We recommend Winterhalter Gastronom stainless steel cleaner and stainless
steel polish.
4 Before working with the machine
Have the machine installed by your Winterhalter service technician or dealer. Comply with the information
in chapter 9 if the installation location is not free of frost.
Have the machine connected by authorised technicians in accordance with the locally applicable
standards and regulations (water, waste water, electricity, ventilation).
In addition, have the machine connected to the steam and condensation pipes if it is heated by steam.
Have the machine commissioned by a service technician authorised by Winterhalter. At the same time,
have yourself and your operating personnel trained in how to operate the machine.
4.1 Checking for completeness
Use the delivery note to check that the delivery is complete and search for any transport damage.
Immediately inform the transport company, the insurance company and the manufacturer of any damage.
4.2 Initial installation
After the machine has been correctly connected to the supply lines in the building, contact the
Winterhalter branch that is responsible for the location in order to request initial installation and instructions
in how to operate the machine.
5 Product description
In the STR rack conveyor dishwashing machine, a wide variety of dishes are automatically transported
through the machine and washed. Detergent and rinse aid are dosed by external dosing equipment.
There are connection terminals for connecting this equipment that have been set up in advance (12).

Operating and control elements
6
6 Operating and control elements
1
On/off button
2
Tank draining
3
Start/stop rack conveyor transport
4
Temperature information
5
Slow rack conveyor transport
6
Fast rack conveyor transport
7
Switch for rinse temperature (special equipment)
A
Boiler temperature display for when the machine is being filled up or when button 4 is pressed
B
Tank temperature display for when the machine is being filled up or when button 4 is pressed
C
Fault indicator light
D
Indicator light for lack of detergent or rinse aid 1
7 Operation
7.1 Preparing for operation
7.1.1 Before switching on the machine
Open the water stopcock in the building.
Switch on the mains disconnector in the building.
For your own safety, test the residual-current circuit breaker (RCCB) installed in the building by pressing
the test button.
Open the machine door and check that all filters (strainers, inline filters for circulating pump and drain
pump), barrier curtains and wash arms are in place.
Close the machine door.
Warning
When using chemicals, comply with the safety notes and recommended dosages printed on the
packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Do not mix different detergent products together.
Check whether there is detergent or rinse aid in the storage tanks. Top them up in time or replace the
storage tanks so that the cleaning result will not be negatively affected.
If there are any swivelling table elements (e.g. roller conveyor) present, fix them in their working position.
1
Provides notification of a lack of detergent or rinse aid if storage tanks with suction tubes and level control
are used.
The indicator light blinks as soon as a storage tank is found to be empty.

Operation
7
7.1.2 Switching on
Close the machine door.
Press the on/off button (1) to switch on
the machine.
The tank of the main wash zone and the boiler are filled and heated up automatically.
Detergent is dosed into the tank of the main wash zone (assuming dosing equipment is connected).
Button 3 lights up red until the rated levels in the tank and boiler are reached.
Before the rated temperatures have not been reached, the temperatures in displays A (boiler) and B
(tank) are shown. After this point, the temperatures displayed disappear.
The following signify together that the machine is ready for operation:
Button (3) lights up green.
Button (5) lights up yellow and blinks.
Button (6) lights up yellow.
INFO: The machine is supplied from the factory programmed so that it can be started as soon as the rated
levels in the tank and the boiler are reached. Alternatively, the machine can be programmed so that it can
only be started after the rated temperatures have been reached. Contact a Winterhalter service technician.
7.2 Washing
The machine can be operated with two different transport speeds.
Button 5
Slow-speed transport
For normally to very dirty dishes
Button 6
High-speed transport
For slightly dirty dishes
7.2.1 Starting/stopping transport
The machine is pre-set to slow-speed
transport: Button 5 blinks.
Press button 3 to start rack conveyor
transport.
Button 3 lights up blue.
If you want to increase the transport
speed, press button 6.
Button 3 lights up green shortly, then
blue.
Button 6 blinks.
Button 5 lights up.
If you want to stop rack conveyor
transport, press button 3.
Button 3 lights up green.

Operation
8
7.2.2 Washing
Caution
Do not wash plastic items unless they are heat-resistant and will not be damaged by the
detergent solution.
Only use a suitable detergent to wash aluminium items such as pots, containers or tins, so
as to prevent black discolouration.
Remove general debris (left-over food, serviettes, etc.) from the dishes.
Place plates, trays and the like into the washing racks with
their hollow profile facing forwards.
Place bowls into the washing racks with their hollow side
downwards.
Sort cups, glasses and cutlery into suitable washing racks.
Spray the dishes with cold water using a hand shower so that
as little debris as possible is carried into the machine.
(More debris results in increased detergent consumption.)
Push one washing rack after another into the machine.
The washing rack is drawn in automatically.
The circulating pump switches on as soon as the
washing rack actuates the rack switch. Rinsing is activated
via a second rack switch.
Leave the washing racks on the outfeed table until the dishes dry, if possible. For continuous washing,
however, you should remove the washing racks from the outfeed table before the table limit switch is
actuated and the rack conveyor transport is switched off.
7.2.3 Machine door open
If the machine door is opened during washing, rack conveyor transport stops and button 3 lights up green.
How to continue washing:
Close the machine door.
Press button 3 to start rack conveyor transport.
Button 3 lights up blue.
7.2.4 Breaks in operation
Do not switch the machine off during breaks in operation so as to maintain the rated temperatures.
Rack conveyor transport continues to run for about five minutes after the dishes have exited the
machine. Button 3 lights up blue in this period of time.
Afterwards, button 3 lights up green.
The selected transport speed remains set: Button 5 or 6 blinks.
After the break in operation:
Push a washing rack past the transport pawls into the machine until rack conveyor transport starts.
or
Press button 3 to start rack conveyor transport again.

Operation
9
7.3 Washing with a decreased rinse temperature (special equipment)
IMPORTANT: Wash glasses with a reduced rinse temperature in order to prevent premature
glass corrosion.
Press button 7 to activate the temperature
decrease.
Button 7 blinks.
The rated temperature entered into
the program at which rinsing at a reduced
temperature will take place appears on
display A for about five seconds.
Afterwards, the current actual
temperature is displayed. If continuous
display of the temperatures was not
activated (7.4), the display goes blank
after a short time.
Set the transport speed (press button 5 or
button 6) and start the rack conveyor
transport with button 3.
If you want to increase the rinse temperature again, do the following:
Press button 7 to switch off the temperature decrease.
Button 7 lights up.
The rated temperature entered into the program at which rinsing without a reduced temperature will
take place appears on display A for about five seconds. Afterwards, the current actual temperature is
displayed if continuous display of the temperatures was activated (7.4).
7.4 Displaying the temperatures on the control panel
Press button 4.
The current boiler temperature is
displayed for about five seconds on
display A.
The current tank temperature is
displayed for about five seconds on
display B.
INFO: Alternatively, the machine can be programmed so that the temperatures are continuously displayed.
Contact a Winterhalter service technician.
7.5 The table limit switch
The table limit switch prevents dish breakage in case the rinsed washing racks are not taken away from the
outfeed table and more washing racks are transported out of the machine.
As soon as a washing rack is pushed onto the table limit switch, rack conveyor transport stops and button 3
lights up green.
When the load is taken off of the table limit switch, rack conveyor transport starts again automatically and
button 3 lights up blue. If a washing rack is in the machine, the circulating pump is started up again.

Operation
10
7.6 Routine checks
Check that the dishes are cleaned.
Check whether the fault indicator light on the control panel has lit up.
If so, do the following:
Switch off the machine and write down the error code.
Use the error table (10.1) to see if you can remedy the error yourself.
Tell the Winterhalter service technician about the fault message if you cannot remedy the
fault yourself.
Only switch the machine back on after the fault has been remedied.
Check if the indicator light for lack of detergent or rinse aid on the control panel is lit.
If so, do the following:
Warning
When using chemicals, comply with the safety notes and recommended dosages printed on the
packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Do not mix different detergent products together.
Check whether there is detergent or rinse aid in the storage tanks. Top them up in time or
replace the storage tanks so that the cleaning result will not be negatively affected.
Check the interior of the machine.
Warning
Put on protective clothing and protective gloves before holding parts that are covered with tank
water (filters, wash arms, curtains, etc.).
Open the machine door.
Remove the strainer to clean it. There is no need to drain the water in order to do this.
Reinsert the strainer.
Close the machine door.
7.7 Switching off the machine
Press the on/off button (1).
The buttons are not lit up any more and the machine is switched off. The tank remains filled, but the
temperature in it is no longer maintained.
Warning
The machine remains live until the mains disconnector in the building is switched off.
Proceed as described in point 8.1 if you want to drain the tank and clean the machine at the end of a
working day.

Maintenance and care
11
8 Maintenance and care
Warning
Do not spray the machine or direct vicinity (walls and floor) with a water hose, steam jet or high-
pressure cleaner.
When cleaning the floor, take care to avoid flooding the substructure of the machine, in order to
prevent the uncontrolled entry of water.
8.1 Daily
An evacuation program is helpful on cleaning the machine. It can be interrupted at any time, for example to
also clean the machine interior manually (7.1.4). If it is not interrupted, it will run automatically and terminate
by switching off the machine.
8.1.1 Starting the drainage programme
Let the last rack be transported out of the
machine.
Press button 3 to stop rack conveyor
transport.
Button 3 lights up green.
Button 2 lights up yellow.
Press button 2 for about 2 seconds and then release it.
Button 3 will light up blue.
Buttons 2 and 6 blink.
The circulating pump circulates the tank water for about two minutes.
The interior of the machine is rinsed out with fresh water.
About one minute after button 2 has been pressed, the tank water is pumped out and the circulating
pump continues circulating the tank water.
As soon as the tank water has been pumped out to a certain extent, the circulating pump switches
off.
When the rest of the water in the tank has been pumped out, the machine switches off. The buttons
are not lit up anymore.
8.1.2 Interrupting the drainage program
You can interrupt the evacuation program if you want to clean the machine interior manually.
Press button 3, or open the machine door.
Button 3 turns green
Buttons 2 and 6 continue to flash
Clean the machine interior, as described in Chapter 7.1.4.
8.1.3 Continuing the drainage program
Water that entered the machine during manual cleaning can now be pumped out:
Press button 2 for about 2 seconds and then release it. Press button 2 again to cancel the operation.
Button 2 will flash more rapidly
The drain pump will empty the tank
The machine will switch itself off when the tank is empty. The buttons are no longer illuminated.
If the water is not pumped out completely:
Switch off the drain pump (press button 2)
The drain is vented (air bubbles rise up)
Switch the drain pump on again when there are no more air bubbles rising.
INFO: If you do not interrupt the evacuation program, it will run automatically and terminate by switching off
the machine.
The tank is pumped empty.
The tape transport is switched off.
The machine switches itself off and the button lights are extinguished.

Maintenance and care
12
Close the stopcock in the water pipe in the building.
Switch off the mains disconnector in the building.
8.1.4 Manual cleaning of the machine interior
Open the machine door.
Remove and clean the curtains.
Remove the lower wash arms (five jets):
Lift the locking mechanism.
Rotate the wash arm out of the guide and remove it in the
direction of the front side.
Wash out the wash arms if the jets are blocked.
Remove the upper wash arms (six jets):
Pull the wash arm downwards out of the catch and remove it in
the direction of the front side.
Wash out the wash arms if the jets are blocked.
Remove and clean the strainer.
Remove the filter (A) from the tank floor drain.
If the interior of the machine is dirty, clean the interior of the
machine with a sponge and a brush. If necessary, you can spray the
interior with a hose.
Use a brush to clean the filter (B) covering the pump inlet
opening. If necessary, the filter can be removed.
Reinsert the filter (A) into the tank floor drain.
Reinsert the strainer.
Reinsert the wash arms.
Reinsert the curtains. The curtains are designed (coded) so they cannot be inserted in the wrong position.
Both of the long curtains are located on the ends of the machine.
Close the machine door.

Maintenance and care
13
8.1.5 Cleaning the outside of the machine
Clean the exterior surfaces with a stainless steel cleaner and stainless steel polish.
Clean the connected table system.
8.1.6 Checking external water treatment
Check whether sufficient regeneration salt has been added.
8.2 Monthly
8.2.1 Cleaning the dirt trap
Clean the debris filter in the dirt trap.
8.2.2 Descaling
If the machine is operated with very hard water and without suitable water treatment, limescale can build up
in the boilers, the interior of the machine and in all pipes that carry water.
Limescale deposits and the incorporated dirt and grease residues represent a hygiene risk, and the
limescale can cause the heating elements to fail. Therefore, it is essential to remove these deposits at
regular intervals.
The job of correctly descaling the boilers and all pipes that carry water should be entrusted to a Winterhalter
service technician.
However, you can descale parts of the interior of the machine yourself by following the instructions below.
Drain the machine (8.1.1).
Interrupt the dosing of detergents (e.g. pull out the suction tube or switch off the dosing equipment) in
order to prevent chlorine gas from being formed if the active chlorinated detergent comes into contact with
descaler.
Fill the machine (7.1.2).
Warning
When using chemicals, comply with the safety notes and recommended dosages printed on the
packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Add the descaler to the tank of the machine in accordance with the recommended dosage.
Run the machine with empty washing racks until all the limescale deposits have been removed.
It may be necessary to dose additional descaler after an operating time of about 10 minutes.
Drain the machine (8.1.1).
Caution
The descaler may not remain in the machine for several hours.
Fill the machine (7.1.2).
Run the machine with empty washing racks in order to remove descaler residue from the washing
system.
Drain the machine (8.1.1) again.
Put the detergents dosing into operation again.

Taking the machine out of service for a longer period of time
14
8.3 Maintenance by customer service
We recommend having the machine serviced at least once a year by a Winterhalter service
technician. This service should also include having components subject to wear or ageing being
checked and replaced if necessary.
Examples of such components:
Water supply hoses
Dosing tubes
Splash curtains
9 Taking the machine out of service for a longer period of time
Comply with these instructions if you need to take the machine out of service for a longer period of time
(company holidays, seasonal operation).
Drain the machine (8.1.1).
Clean the machine as described in point 8.1.
Leave the machine door open.
Close the water stopcock in the building.
Switch off the mains disconnector in the building.
If the machine is installed in a room that is not protected against frost, do the following:
Contact a Winterhalter service technician and request frostproofing of the machine.
The technician must drain the boiler and the drain pump. In machines with a non-pressurised boiler,
the rinse pump must also be drained.
Taking the machine back into service
Open the water stopcock in the building.
Switch on the mains disconnector in the building.
Switch on the machine.
The boilers fill up automatically. Start heating only when the minimum level has been reached in the
main wash zone tank or when the boiler is filled in order to prevent the heating elements in the boilers
from burning through.

Malfunctions
15
10 Malfunctions
This explains what action to take in case of malfunctions. The tables provide information about possible
causes and notes on remedial action. Contact the Winterhalter service technician if you are unable to rectify
the fault yourself.
Danger
DANGER –risk of fatal injury due to live components.
Do not open any machine covers or machine components if you require a tool to do so. Risk of
electric shock.
Have all work on the electrical system performed by a Winterhalter service technician.
The machine must be disconnected from the electrical mains first.
10.1 Malfunctions; display on the control panel
Display
Meaning
Remedy
Lack of detergent or rinse aid
Refill detergent or rinse aid in the machine.
Fault message
Switch off the machine.
An error code appears on the control
panel.
If Err 4, Err 5, Err 7-Err 11, Err 13-Err 15 or
Err 17-Err 20 is displayed, do the following:
Check if the water stopcock is opened.
Switch on the machine again.
If the fault message appears again, do the
following:
Disconnect the machine from the mains and
close the water stopcock.
Tell the Winterhalter service technician about
the fault message.
If another error code is displayed:
Look at the table to find out the meaning of the
error code, and follow the instructions.
Err 1
Err 6
Err 12
If error codes Err 1, Err 6 or Err 12 are
displayed, the machine's functioning
has been so impaired that it has
automatically switched off and cannot
be switched on again.
Tell the Winterhalter service technician about
the fault message.
Err 16
The machine door was opened during
the drainage programme and was not
closed again within 60 minutes.
The machine switches off and displays
Err 16.
The error code disappears the next time that
the machine is switched on again.
Err 21
If the error code Err 21 appears when
the machine is switched off, the water
level in the machine was too high.
Water was pumped out.
Close the water stopcock so no more water
flows into the machine.
Tell the Winterhalter service technician about
the fault message.

Malfunctions
16
Display
Meaning
Remedy
Blinks red
The temperature in the boiler or tank is
greater than 95°C.
Switch off the machine imme-
diately. The error code Err 2 or Err 3
appears.
Tell the Winterhalter service technician about
the fault message.
Blinks blue
Water level in the machine is too high.
The drain pump switches on and
drains until the normal level is
reached.
When the error occurs five times,
appears.
When you switch off the machine,
Err 21 is displayed.
Close the water stopcock so no more water
flows into the machine.
Tell the Winterhalter service technician about
the fault message.
Rack
conveyor
transport and
circulating
pump switch
off
Thermo protection switch of the built-in
geared motor or of an external drive
motor connected to the machine was
triggered.
Switch off the machine.
Err 11 is displayed.
Washing can continue as soon as the motor has
cooled off.
Tell the Winterhalter service technician about
the fault message.

Malfunctions
17
10.2 Malfunctions
Error
Possible cause
Remedy
Machine cannot be switched on.
The mains disconnector in the
building is not switched on.
Switch on the mains disconnector in the
building.
Fuses installed in the building
are defective.
Replace fuses installed in the building.
EMERGENCY STOP activated.
Release EMERGENCY STOP.
Machine does not fill up.
Machine door not fully closed.
Close machine door.
Water stopcock closed.
Open water stopcock.
Rack conveyor transport cannot
be started.
Table limit switch is activated.
Take load off of table limit switch.
Machine door not fully closed.
Close machine door.
Dishes are not cleaned.
No or insufficient detergent
dosed.
Set the dosing according to the
information provided by the manufacturer.
Check dosing lines (kinks, breaks, etc.).
Replace storage tanks.
Check the dosing equipment.
Dishes not sorted correctly.
Do not stack dishes on top of one another.
Wash arm jets blocked.
Remove wash arms and clean jets.
Transport speed too fast.
Set a slower speed.
Temperatures too low.
Check the temperatures (7.4); call
customer service if the rated values
(11.1) are not achieved.
Deposits form on the dishes.
Limescale deposits:
water is too hard.
Check external water treatment / set
correctly.
Perform basic cleaning.
Starch deposits:
excessively high temperatures
in manual pre-wash (spraying).
Temperature should be 30°C at most.
Dishes do not dry by
themselves.
No or insufficient rinse aid
dosed.
Set the dosing according to the
information provided by the manufacturer.
Check dosing lines (kinks, breaks, etc.).
Replace storage tanks.
Check the dosing equipment.
Washing racks are not
transported.
Table limit switch blocked.
Remove washing rack.
Slip clutch not set correctly.
Call a Winterhalter service technician.

Technical data
18
11 Technical data
11.1 Technical data
Factory settings for temperature
Area
Main wash zone
62°C
Fresh water rinsing
85°C
On machines heated with steam
Permitted steam pressure
30 –400 kPa (0.3 –4.0 bar)
Permitted steam temperature
107.1°C –151.8°C
11.2 Emissions
Noise
The emission sound pressure level at a work station LpAeq acc. to DIN EN ISO 11204 is < 70 dB(A).
Exhaust air
800-1000 m3/h
The air admission and evacuation system must be configured acc. to VDI Guideline 2052.