Winterhalter PT-M User manual

Rack pass-through dishwasher
PT Series
Operating Instructions

1
Operating Instructions
For Winterhalter PT Series rack pass-through dishwasher
(translation of the original German operating instructions)
Table of contents
1About this manual-------------------------------- 2
2Safety notes---------------------------------------- 2
2.1 Proper use------------------------------------------- 2
2.2 Improper use ---------------------------------------- 2
2.3 Electrical Safety ------------------------------------ 3
2.4 Safety Instructions for Maintenance and
Repairs ----------------------------------------------- 3
2.5 General safety notes ------------------------------ 3
3Before working with the machine ----------- 4
4Product description------------------------------ 4
4.1 Mode of operation---------------------------------- 4
4.2 Special equipment --------------------------------- 4
4.3 Overview --------------------------------------------- 5
4.4 Display (Touchscreen) and start button ------ 6
4.5 Standard washing programmes ---------------- 7
5Rinse aid and detergent------------------------ 8
5.1 Rinse aid --------------------------------------------- 8
5.2 Detergent--------------------------------------------- 8
5.3 Suction tube with level control ------------------ 9
5.4 Changing the detergent product---------------- 9
5.5 Priming the dosing devices ---------------------10
6Integral water softener (special
equipment)-----------------------------------------10
6.1 Lack of salt display--------------------------------10
6.2 Filling regeneration salt--------------------------10
7Operation-------------------------------------------11
7.1 Before switching on the machine--------------11
7.2 Switching on the machine and preparing it
for operation----------------------------------------11
7.3 Washing---------------------------------------------11
7.4 Switching off----------------------------------------13
8Servicing and maintenance ------------------14
8.1 Daily cleaning --------------------------------------14
8.2 Weekly cleaning-----------------------------------15
8.3 Monthly cleaning ----------------------------------16
8.4 Descaling--------------------------------------------16
8.5 Maintenance by the Customer Service ------16
9Malfunctions --------------------------------------17
9.1 Error code call -------------------------------------19
9.2 Poor cleaning result ------------------------------19
9.3 Increased generation of noise -----------------19
10 Info Level 1 ----------------------------------------20
11 Info Level 2 ----------------------------------------22
12 PIN Menu -------------------------------------------23
12.1 General settings-----------------------------------23
12.2 Programming automatic switch on /
switch off --------------------------------------------25
12.3 Operating data-------------------------------------26
12.4 Hygiene logbook-----------------------------------27
12.5 Descaling / basic cleaning ----------------------28
12.6 Changing the amount of detergent /
rinse aid ---------------------------------------------30
12.7 Resetting the water back-flow counter-------30
13 Integrated operating instructions ----------31
14 Customer-specific modifications-----------31
15 Installing the machine and tables----------31
15.1 Installing the machine----------------------------31
15.2 Attaching the tables-------------------------------31
15.3 Converting the rack guide-----------------------32
16 Water connection--------------------------------33
16.1 Requirements for the on-site inlet water
connection ------------------------------------------33
16.2 Requirements for the on-site water
stop cock --------------------------------------------33
16.3 Connecting the supply hose--------------------33
16.4 Connecting the drain hose----------------------33
17 Electrical connection---------------------------34
17.1 Connecting the mains cable--------------------34
17.2 Establishing an earth connection--------------34
17.3 Connection diagram ------------------------------35
18 External dosing devices-----------------------36
18.1 Terminals--------------------------------------------36
18.2 Electrical connection -----------------------------37
18.3 Setting parameters--------------------------------38
19 Taking the machine out of service for a
long period ----------------------------------------38
20 Putting the machine back into service
after a long period of disuse-----------------38
21 Technical Information--------------------------39
22 Emissions------------------------------------------39
23 Disposal --------------------------------------------39

About this manual
2
1 About this manual
This manual contains information and instructions for the safe operation and maintenance of your dishwash-
er.
Please note carefully the safety notes listed here.
The following symbols are used in these instructions:
Symbol
Meaning
Danger
Warning against potential serious or fatal injuries to persons if the described precautionary
measures are not taken.
Warning
Warning against potential minor injuries to persons or potential material damage if the de-
scribed precautionary measures are not taken.
Caution
Warning against defects in or destruction of the product if the described precautionary
measures are not taken.
IMPORTANT
Important information is given here.
INFO
Useful information is given here.

This symbol indicates instructions.

This symbol indicates results of your actions.

This symbol indicates itemizations.

This symbol refers to a chapter with more detailed information.
2 Safety notes
2.1 Proper use
The PT Series dishwasher is a technical device for commercial use and is not intended for pri-
vate use.
Use the dishwasher only for the washing of dishes such as plates, cups, cutlery and trays or for
washing glasses of a gastronomic and related type.
2.2 Improper use
This device may be used by children from the age of 8 upwards as well as by those with re-
duced physical, sensory or mental capabilities or a lack of experience and knowledge if they are
supervised or have been instructed on how to safely use the device and understand the risks
associated with it.
Children must not play with the device.
Cleaning and user maintenance should not be carried by children without supervision.
Do not use the dishwasher to wash electrically heated devices or parts made of wood.
Do not wash without a wash rack.
Do not wash parts made of plastic if they are not heat and lye-resistant.
Use a suitable detergent to wash parts made of aluminium such as jars, containers or plates in
order to prevent black stains.
Winterhalter Gastronom GmbH does not assume liability for any damage caused due to im-
proper use of the device.

Safety notes
3
2.3 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 very important that this basic safety
requirement is tested and in case of doubt the house installation is checked by a qualified elec-
trician.
Winterhalter cannot be held responsible for damage caused by a missing or broken earthing
system (e.g. electrical shock).
2.4 Safety Instructions for Maintenance and Repairs
Maintenance work and repairs may only be performed by service technicians authorised by
Winterhalter. Improper maintenance or repairs may cause significant danger for the user, for
which Winterhalter is not liable.
When performing maintenance and repair work, unplug machine from the power network. Elec-
tricity consumers (heating element, frequency inverter, ...) are under voltage until the on-site
mains disconnect switch has been operated.
Only original Winterhalter spare parts may be used for maintenance and repairs. If original
spare parts are not used, the warranty is invalidated.
A damaged or leaking machine can endanger your safety. In case of defects, switch off the ma-
chine immediately. Switch off the on-site mains disconnector (main switch). Only then is the
machine without power.
Do not operate a damaged machine. In case of defects resulting from an unknown cause,
switch off the machine, and do not switch it on until the defect has been rectified.
Contact your installer or electrician if the on-site water or electricity supply is the cause of the
malfunction.
Notify an authorised service technician or your retailer if another fault has occurred.
If the mains cable of this machine is damaged, it must be replaced by the Winterhalter or its
Customer Service or another qualified person in order to prevent hazards. The mains cable
must be H07 RN-F type or equivalent.
2.5 General safety notes
Read through the safety notes and operating instructions in this manual carefully. Retain the
operating instructions for future reference. Winterhalter Gastronom GmbH does not assume lia-
bility or warranty in case of non-adherence to these safety and operating instructions.
Do not make changes, additions or reconstructions in the dishwasher without the approval of
the manufacturer.
Do not transport the warewasher with the ClimatePlus heat pump installed. The centre of gravity
is situated on the right side and the warewasher could tip over.
Use the dishwasher only after you have read and understood the operating manual. Allow the
Winterhalter Customer Service to provide information about the operation and functioning of the
dishwasher. Always operate the machine as described in these operating instructions.
Train the operating personnel as regards handling the machine and inform them about the safe-
ty notes. Repeat the training sessions at regular intervals to prevent accidents.
For your safety, test the local fault current circuit breaker (FI) regularly by pressing the test but-
ton.
Close the on-site water stop cock after the work is complete.
Switch off the local mains disconnector after the work is complete.

Before working with the machine
4
3 Before working with the machine
Have the machine set up by an authorised service technician or your dealer (15).
Have the machine connected as per the locally applicable standards and the regulations by authorised
mechanics (water, waste water, electrical system) (16 and 17).
After connecting the water and the power properly, contact the relevant Winterhalter dealer or your dealer
for the commissioning of the machine and for providing training in its operation. Get yourself and your op-
erating personnel trained in the operation of the machine.
4 Product description
4.1 Mode of operation
The boiler and the tank fill and are warmed up to the operating temperature after the machine is switched on.
During the heating phase, the lighting of the start button (3) changes gradually from red to green. When the
target temperatures are reached, the machine is ready for use. The start button lights up green.
The machine is fully automatic with programmes consisting of three steps: Wash, Drain and Rinse. Whilst a
washing programme is running, the start button gradually moves from blue to green.
4.2 Special equipment
The following special equipment is available:
Cool (only for glass washers)
Requirement: Connect the machine to the cold water.
In this process, the rinse is effected with cold fresh water.
The glasses are ready to use immediately after washing.
IMPORTANT The first rinses after activating this function will still be with hot or warm rinse water.
INFO This function can be deactivated at any time.
effect
Requirement: Connection of the machine to water at a maximum 50 °C when the glasswasher is operat-
ed.
In this process, you wash with reduced tank and boiler temperatures.
Sustainable improvement of the kitchen climate and reduction of operating costs.
IMPORTANT Washing at these temperatures requires Winterhalter detergents and rinse aids which are
appropriate for this process.
INFO This function can be deactivated at any time.
EnergyPlus
Requirement: Connect the machine to the cold water.
In the construction above the machine there is a fan motor and a heat exchanger. The fan draws the
moist, warm air (= vapours) out of the interior and transfers the generated energy to the cold inlet water
via a heat exchanger. A waste water heat exchanger provides an additional energy gain.
Sustainable improvement of the kitchen climate and reduction of operating costs.
ClimatePlus (PT-M and PT-L only)
Requirement: Connect the machine to the cold water.
In the construction above the machine there is a fan motor and a heat pump. The fan motor extracts the
moist, warm air (= vapours) out of the interior and transfers the generated energy to the cold inlet water
via a heat exchanger.
Air-conditioning effect on the kitchens and reduction of operating costs.
Automatic hood opening
The hood opens automatically after each wash cycle.
Integral softener (6)

Product description
5
4.3 Overview
Pos.
Description
(1)
Energy module (special equipment) or heat
pump module (special equipment, no illus-
tration)
(2)
Display (Touchscreen)
(3)
Start button
(4)
Machine hood (= hood)
(5)
Rack guide
(6)
Lower rotating wash field
(7)
Tank cover
(8)
Filter cylinder
(9)
Pump inlet filter
(10)
Wash field bearing
Pos.
Description
(11)
Bushings for cables and hoses
(12)
Water supply hose
(13)
Suction tube for rinse aid
(blue cap and blue suction hose)
(14)
Suction tube for detergent
(black cap and transparent suction hose)
(15)
Water drain hose
(16)
Hoses and cable for the suction tubes
(17)
Mains cable
(18)
Connection for local equipotential bonding
system

Product description
6
4.4 Display (Touchscreen) and start button
Activating the display
Touch the display with your finger.
The display turns on and then off again after a short time. This
saves energy and prevents accidental switching on of the ma-
chine.
INFO Switching on the machine, see Section 7.2.
On the screen touch-sensitive buttons (keys) are displayed. Operate the screen with your fingers only, not
with sharp objects. Each touch of a button is confirmed by a beep. Events such as the end of the programme
or malfunctions are indicated by a sequence of tones.
INFO An authorised service technician can deactivate the beep and the sequence of tones.
Operational state
(a) On/Off key
(b) Self-cleaning programme
(c) Change to Info Level 1 Info Level 2 PIN Menu
(d) Start button
Start button
The coloured lighting of the start button (d) has the following meanings:
Colour
Meaning
not lit
Machine is switched off
red
Machine is not yet ready for use
green
Machine is ready for use
blue
Machine is washing
red and green
Machine is filling and heating up
green and blue
Washing programme is running
blue and not lit
Self-cleaning programme is running
flashing green
Washing programme is ended; hood has not been opened yet
flashing green-blue
Only for the EnergyPlus und ClimatePlus models:
Vapours being extracted. The washing programme has not completely finished.
Menu levels
The machine electronic control unit is split into 3 levels:
Level for the dishwashing staff (4.5)
Info level 1 with additional washing programmes and information (10)
Info level 2 with access to the PIN Menu (11)

Product description
7
4.5 Standard washing programmes
The washing programme display depends on which application the machine has been programmed for. If
necessary, the machine can also be reprogrammed later.
Programme 2 is already pre-selected when the machine is ready. Another washing programme is selected
by tapping. The selected programme is represented by a button with a white background.
Application of the
machine
Programme 1 for
Programme 2 for
Programme 3 for
Dishwasher
slightly dirty dish-
es
medium dirty
dishes
heavily dirty dish-
es
Glasswasher
delicate glasses
less delicate
glasses
robust glasses
Bistro dishwasher
glass
glasses and cups
plates
Bistro and cutlery
washer
glass
cutlery
plates
Cutlery washer
cutlery
INFO The indicator on your dishwasher may vary since the authorised service technician can display
appropriate images for your machine from a collection of images. At your request, the service tech-
nician can also hide programmes.

Rinse aid and detergent
8
5 Rinse aid and detergent
Danger
When handling chemicals, observe the safety precautions and the dosage recommendations
on the packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Caution
Use only products that are suitable for commercial dishwashers. Such products are appro-
priately marked. We recommend Winterhalter products. These are especially adapted to
Winterhalter dishwashers.
Do not put rinse aids in the storage container for detergents and vice versa.
5.1 Rinse aid
A rinse aid is necessary to ensure that water on the dishes drains off after washing and dries off after a short
while. Rinse aid is automatically dosed from an external container. The rinse aid dosing device is an integral
component of the machine. The dosing amount is set by the authorised service technician when commis-
sioning the machine (12.6).
5.2 Detergent
Caution
Do not use acidic detergents.
Do not mix different detergent products in order to prevent crystallisation that could destroy
the detergent dosing device (5.4)
Do not use products that can create foam, e.g. hand soap, soft soap, hand wash liquid. En-
sure that these do not enter the machine even during the pre-treatment of the dishes.
A detergent is necessary to ensure that the leftovers and dirt on the dishes is cleaned. Detergents can be
dosed as follows:
Manually as detergent powder.
Automatically from an external container using a detergent dosing device.
INFO The detergent dosing device is not included in the scope of delivery of all machines. When using
an external dosing device, a transfer strip is available for connecting the dosing device (18).
5.2.1 Manual dosing of detergent powder
Pre-dosing
Switch on the machine and wait until the start button is lit green.
Adhere to the dosing instructions on the packaging of the detergent. The machine's tank capacity is ap-
prox. 35 litres.
Place approx. 100 g of detergent powder in the machine. This corresponds to a dosing of approx. 3 g/l.
Then start the wash cycle immediately to mix the detergent powder with the water.
Post-dosing
At each wash cycle approx. 2.0-2.5 litres of fresh water enter the dishwasher, which must be mixed with
detergent powder.
Fill approx. 30 - 40 g detergent powder into the machine after 5 wash cycles.
5.2.2 Automatic dosing of liquid detergent
The dosing amount is set by the authorised service technician when commissioning the machine (12.6).

Rinse aid and detergent
9
5.3 Suction tube with level control
Caution
Only use the suction tube with sufficiently stable containers. Narrow and tall containers can
tip if the suction tube is pulled.
Do not place the suction tube for the rinse aid in the detergent container or vice versa.
Do not pull unnecessarily on the suction hose or main power cable, as this may lead to a
defect.
As an option, with your machine you may have one or more suction tubes. The suction tube is already con-
nected to the machine.
Figure 1:
Suction tube for detergent
Transparent suction hose
Black cap
Figure 2:
Suction tube for rinse aid
Blue suction hose
Blue cap
Figure 1
Figure 2
Servicing and maintenance
Rinse the suction tube at every container change under running water. Re-
move crystallised detergent residue.
Ensure that both vent holes (a) in the caps are open.
Put the suction tube back into the container. Slide the cap downwards until
the container opening is closed.
5.4 Changing the detergent product
Caution
Mixing different detergents can lead to efflorescence that can lead to a failure of the deter-
gent dosing device. This is applicable even if the new detergent is from the same manufac-
turer.
The dosing tubes and the detergent dosing device must be thoroughly rinsed with water
before the new detergent is used.
A new detergent product usually requires a new setting of the detergent dosing device. Assign the re-
quired work to an authorised service technician to attain good cleaning results.
If this is not done, the warranty and product liability of Winterhalter Gastronom GmbH expires.

Integral water softener (special equipment)
10
Procedure:
Danger
Observe the safety precautions when handling chemicals and the dosage recommendations
on the packaging.
Wear protective clothing, protective gloves and protective goggles when handling chemicals.
Do not mix different detergents.
Remove the suction tube from the container and place it in a water-filled container.
Rinse the dosing tube and the detergent dosing device with water. To do this, use the "prime dosing de-
vice" function several times (10). The frequency depends on the length of the dosing tubes.
Place the suction tube in the new detergent container.
Use the "prime dosing device" function several times (10), to replace the water in the dosing tubes with
detergent.
5.5 Priming the dosing devices
Dosing devices must be primed when air is reached in the dosing tubes because the containers were not
exchanged or refilled in time (10).
6 Integral water softener (special equipment)
By softening the inlet water, limescale build-up in the machine and on the dishes is avoided. For the integral
water softener to work correctly, the salt container must be filled with regeneration salt.
INFO At the commissioning of the machine the authorised service technician measures the water hard-
ness and saves it in the machine's electronic control unit.
6.1 Lack of salt display
A pictogram appears on the screen when an empty salt container requires refilling. The dis-
play disappears after filling the salt container, as soon as approx. 3 wash cycles have been
completed and part of the salt has been dissolved.
6.2 Filling regeneration salt
Caution
Possible risk of damage to the water softener
Chemicals such as detergent and rinse aid inevitably lead to damage to the water softener. Fill
only with regeneration salt or pure evaporated salt.
Possible malfunction of the water softener
Do not fill with other salts (e.g table salt cleaning or de-icing salt). These can contain water-
insoluble components. Fill only with fine-grained salt (max. 0.4 - 7 mm grain size).
INFO Because of their size, salt tablets are not suitable.
Proceed in accordance with Figures A1 to A5.
IMPORTANT Figure A2 is only relevant for the first filling.
Caution
Risk of rust formation in the filling area
Immediately after filling, start a wash cycle to rinse off any salt residue.

Operation
11
7 Operation
7.1 Before switching on the machine
Caution
Possible risk of damage due to suction of items from within the machine e.g. pieces of
cutlery
The pump inlet filter protects the circulating pump and the drain pump. Operate the machine
only with the pump inlet filter fitted.
Open the water stop cock.
Switch on the local mains disconnector.
For your own safety, test the on-site residual-current circuit
breaker (FI).
Open the hood.
Remove the filter cylinder (1).
Check whether the pump inlet filter (2) is fitted. If it is not
fitted there will be an error message when the machine is
switched on.
Insert the filter cylinder (1).
Check whether the rotating wash fields (top and bottom)
are fitted and properly engaged.
Close the hood.
Check whether sufficient detergent and rinse aid are pre-
sent in the storage containers. Replace the storage con-
tainers in time so that the cleaning results are not affected.
7.2 Switching on the machine and preparing it for operation
7.3 Washing
Warning
Possible risk of scalding from hot wash water
Keep children away from the dishwasher. The wash water is at a temperature of approx.
62 °C.
Do not open the hood while the machine is washing. There is a risk of the hot wash water
spilling out. Stop the washing programme before doing so (7.3.7).
Possible risk of injury
Do not place any objects on the hood.
Arrange sharp, pointed utensils so that they do not cause injury.
Caution
Possible failure of the washing programme due to heavy dirt ingress
Pre-rinse all dishes and pans with cold water. Remove food residues.

Operation
12
7.3.1 Arranging the dishes in the washing rack
Dishes and cutlery
Place plates with their upper surface facing forwards.
Place cups, bowls and pots rim down.
Wash cutlery either standing in the cutlery holder or lying in a shallow basket. Make sure that they are not
too close together. Soak cutlery, before you wash it.
Position knives and other sharp objects in the cutlery holder with the handle up in order to prevent inju-
ries.
Glasses
Pour out drink residue (not in the machine).
Remove scraps of paper.
Rinse off ash with water.
Place glasses rim down.
Space the glasses, so they do not rub against each other. This will avoid scratches.
For tall glasses choose a basket with appropriate divisions so that the glasses are held in a stable
position.
7.3.2 Using automatic hood start
Choose a washing programme (4.5).
INFO The washing programme remains selected until a different washing programme is chosen.
Slide the washing rack into the machine.
Check that the top and bottom rotating wash fields are free to turn.
Close the hood.
The washing programme is started.
INFO The automatic hood start can be deactivated by an authorised service technician (P516). Every
washing programme must then be started by pressing the start button.
7.3.3 Interrupting automatic hood start
Do not close the hood completely, but only as far as the lower detent position.
7.3.4 Changing washing programme
Choose a different washing programme by tapping the button (4.5).
The background of the button (4) becomes white.
Close the hood.
The washing programme is started.
7.3.5 Intensive programme
If the stains are particularly dried in, the washing programme can be intensified
Close the hood and press the start button twice in short succession ("double click").
In the info field, the "Brush" icon flashes.
INFO The intensive programme only affects the current washing programme and is
then automatically deactivated again.
7.3.6 End of the programme
The start button flashes green, as soon as the washing programme has ended and the hood remains uno-
pened.
Only for the EnergyPlus und ClimatePlus models:
At first, the start button flashes blue-green.At the same time, the warm-humid vapour is extracted from the
washing compartment, and the heat energy stored in it is recovered for the next wash cycle. If possible, do
not open the hood yet at this time.
The start button flashes green as soon as the warm air is extracted.

Operation
13
7.3.7 Prematurely terminating the washing programme
A washing programme can be terminated in the following ways:
Press the start button
Tap on the button of the selected washing programme
7.3.8 Periods of disuse
Do not switch the machine off during periods of disuse.
Close the hood as far as the detent position to prevent it cooling down.
7.4 Switching off
Switch the machine off at the end of the working day using the self-cleaning programme (8.1.2), so that it
is cleaned and emptied every day.
INFO If you use the On/Off switch, the tank stays filled but will no longer be kept at temperature. If the
tank temperature has dropped too much before the machine is switched on again, the tank will be
emptied automatically and filled again.

Servicing and maintenance
14
8 Servicing and maintenance
Warning
Do not spray the machine and the surrounding area (panels, base) using a water hose,
steam-jet air ejector or high-pressure cleaner.
Ensure that the base of the machine is not flooded when cleaning the floor in order to pre-
vent an uncontrolled inflow of water.
Warning
Wear protective clothing and protective gloves before touching parts in contact with detergent
solution (filters, rotating wash fields, ...)
8.1 Daily cleaning
8.1.1 During operation
Remove the filter cylinder, clean if necessary and re-insert it.
8.1.2 Self-cleaning programme at the end of the working day
The machine is equipped with a self-cleaning programme that assists you when you are cleaning the inside
of the machine. After the first programme step, the self-cleaning programme is interrupted so that you can
remove the filter cylinder and the tank cover and clean them. If you do not follow this step, the self-cleaning
programme will continue automatically after 30 seconds.
Proceed in accordance with Figures B1 to B27.

Servicing and maintenance
15
Terminating the self-cleaning programme:
Press this button.
The background of the button becomes blue.
The machine is filled again.
8.1.3 Cleaning the interior
Caution
Ensure that there are no rusty foreign objects in the machine which can cause even "rust-free
stainless steel" material to start rusting. Rust particles can come from non-rust-free cleaners,
damaged wire racks or non-rust-protected water lines.
The following materials must not be used for cleaning:
High-pressure cleaner
Detergents containing chlorine or acid
Sponges and wire brushes containing metal
Abrasives or abrasive cleaners
Remove dirt with a brush or a cloth.
8.1.4 Cleaning the exterior of the machine
Clean the display with a damp cloth.
Clean the external surfaces using a stainless steel cleaner and stainless steel support.
8.2 Weekly cleaning
Cleaning the rotating wash fields (top and bottom)
Proceed in accordance with Figures C1 to C6.
Cleaning the wash field bearings (top and bottom)
Proceed in accordance with Figures D1 to D9.

Servicing and maintenance
16
8.3 Monthly cleaning
Cleaning the dirt trap
Close the water stop cock.
Clean the dirt filter in the dirt trap.
Only for the EnergyPlus und ClimatePlus models
Cleaning the energy module/heat pump:
Slide the ventilation grill upwards and remove it.
Clean the space behind the ventilation grill with a cleaning cloth.
Wash the ventilation grill in the machine and then refit.
Open the hood.
Spray the suction channel with warm water. Use a water hose,
not a high-pressure cleaner.
Clean the suction channel with a cleaning cloth.
8.4 Descaling
If the machine is operated with water of high hardness without water treatment, descaling is necessary at
regular intervals (12).
8.5 Maintenance by the Customer Service
We recommend that you have an authorised service technician carry out the maintenance of the machine at
least once a year so that vulnerable parts can be checked and replaced accordingly. Original spare parts
must be used for repairs and the replacement of worn parts.
Worn parts are, for example:
Dosing tubes
Bearings of the rotating wash fields
Hood seal
Water supply hose
Only for the EnergyPlus und ClimatePlus models:
The heat exchanger must be cleaned once a year irrespective of whether there is a maintenance contract or
not. Depending on the degree of soiling, the performance of the heat exchanger will be reduced without
maintenance.
Contact an authorised service technician for the maintenance.
In the electronic control unit, the number of operation hours or washing programmes before ser-
vicing should be performed can be programmed and at what number of operation hours remain-
ing the symbol for maintenance/service is displayed. If necessary, have this function activated by
an authorised service technician.

Malfunctions
17
9 Malfunctions
This chapter explains the remedies for malfunctions. The causes and remedies are specified in the tables.
Contact an authorised service technician if you cannot rectify the error yourself.
Danger
Danger to life. Live components.
Do not open any machine covers or machine parts if it requires tools. There is danger of
shock.
Only an authorised service technician should carry out work on the electrical system. The
machine must first be disconnected from the mains.
Faults are displayed in the info field in the form of pictograms. In addition, every malfunction will be recorded
in the hygiene journal (12) and can be retrieved in Info Level 2 (11). Information is recorded in both
menus when the malfunction is remedied.
Pictogram
Meaning
Possible Cause
Remedy
Hood is open
Programme start with open hood
Close the hood
Detergent is empty1
Change the detergent container
Rinse aid is empty1
Change the rinse aid container
Lack of water
Water stop cock closed
Open the water stop cock
Dirt filter in the dirt trap is blocked
Remove and clean the dirt filter
(8.3)
Solenoid valve defective or
blocked
Contact an authorised service
technician for the repair
Integral water treat-
ment is exhausted
Low salt
Fill the salt reservoir with regener-
ating salt (6.2)
External partial or
full demineralisation
unit exhausted
Exchange the partial demineralisa-
tion unit; exchange the resin of the
full demineralisation unit.
Service interval is
running out
The number of operating hours /
cleaning programmes set in the
controls has been reached.
INFO: This function is not activat-
ed in factory.
Contact an authorised service
technician for the repair
Check the calcifica-
tion
The number of operating hours set
in the control system has been
reached.
Start the descaling programme
(12.5)
1
is only displayed, when a suction tube with level control is used and connected to the machine.

Malfunctions
18
Pictogram
Meaning
Possible Cause
Remedy
Lower rotating wash
field is blocked
Rotating wash field is not correctly
engaged
Correctly engage the rotating
wash field
Rotating wash field obstructed by,
e.g. a piece of cutlery
Remove the obstruction
Rotary wash arm blocked by pollu-
tion
Clean the wash field bearing
(8.2)
Defective drive2
Contact an authorised service
technician for the repair
Upper rotating wash
field is blocked
Rotating wash field obstructed by,
e.g. high dishes
Remove the obstruction
Rotating wash field blocked by
pollution
Clean the wash field bearing
(8.2)
Defective drive2
Contact an authorised service
technician for the repair
Filter cylinder
blocked
Heavily contaminated filter cylinder
Remove, clean and replace the
filter cylinder
Energy optimization3
On-site energy optimisation
equipment switches individual
electrical consumers (heating ele-
ments).
Wait until the on-site energy opti-
misation equipment switches off
Pump inlet filter not
fitted
Missing pump inlet filter
The machine switches off
after 30 seconds and will not
be filled.
Fit the pump inlet filter and, if nec-
essary, switch the machine on
again.
INFO: When the prompt is down-
graded three times, the machine
can be switched on
Pump inlet filter not
fitted despite three
prompts
missing pump inlet filter
IMPORTANT: The circulating
pump and drain pump may get
damaged by drawing in, for exam-
ple, pieces of cutlery
Fit pump inlet filter
Automatic hood
opening2defective
Defective motor
Contact an authorised service
technician for the repair
Tank will be filled
A washing programme is started
while the machine is refilling
Wait till the machine has been
filled
Malfunction with
error code
Various
Display the error code (9.1) and
assign the repair to an authorised
service technician
2
Special equipment
3
is displayed only when the machine is connected to an equipment with energy optimisation