SERVICE BOOKLET C DISHWASHING RANGE POINT · PDF file · 2009-11-30level Drain Pump Motor Water Indicator 13 Ventilator Motor (VM) starts Only in models with drying fan Fan 14 Regeneration

SERVICE BOOKLETCC DISHWASHING

RANGE POINT 2001-2009

Subject to modification © Copyright Whirlpool corp. Service Competence Center Europe Rev. 2.1Authors : M. Carzavec, P. Liehm

Entering the test programSteps Description

1 When not already selected, select theProgram 1.

Program 1 is the first programin the quick reference chart.

2 Turn dishwasher off (main switch) When you have a fullintegrated dishwasher youhave to open the door. With allother models you have tooperate with closed door.

3 Push and hold start button and turnon the main switch

Push start button minimum5 seconds long

4 Start LED start flashing5 Passive test program is activated Check all light indicators and

displays by pushing thebuttons. The display will show888.

6 To activate the active test programpush start button again

Follow the overview"Test program steps"

Test program stepsSteps Description Tested unit

1 Start active test program by pushingstart button

2 Back RinsingThe softener take 3 times water toclean the resin container.

After the 2nd run of the testprogram or a reprogrammedCB or a new CB from SPC theBack Rinsing will start

Water Inlet ValveSoftener,Regen. Dosage

3 The DW is filling fresh water Water Inlet Valve (WV 1) on Water Inlet Valve4 Spray Pump Motor starts After 1 lt. In alternating wash

system and 3,4 lt. Inpermanent wash system theinlet valve switches off.

Spray PumpWater IndicatorFlow Meter

5 Motor Diverter Valve and SprayPump Motor switches off for 3seconds

6 Spray Pump Motor starts again Spray Pump7 (DD) Dosage Detergent flap is

openingYou can hear the flap fromoutside

Detergent & RinseAid DispenserValve

8 (DR) Dosage Rinse aid valve on for 3sec.

To see if the valve is workingyou have to remove the outerdoor.

Detergent & RinseAid DispenserValve

9 (Heating Relays) switches on andheats up till 50°C

(You can measure the currentflow if heating is OK)By pushing the start button youcan skip and jump to the nextstep.

Control BoardoutputHeater element

10 Spray Pump Motor stops11 Regeneration Valve (WV2) opens at

water softenerYou can see the water flowinto the salt container.

RegenerationValve

12 Drain Pump Motor (DPM) starts Drains out the water till WaterIndicator (WI) reached lowlevel

Drain Pump MotorWater Indicator

13 Ventilator Motor (VM) starts Only in models with drying fan Fan14 Regeneration Valve closes

Drain Pump stopsVentilation stops

15 Test Program finished

Failure IndicationStart LED| Digits

Description ofthe Failure

Symptom Actions

10 xblinking

F0 OWI Sensorfailure

Permanent too longcycles.

Cycle stops beforeregular end, drain pumpdrains out, failureindication

- Clean OWI sensor.- Check the wiring between sensor and control board (CB).- OWI at self not measurable itself.- Force machine to perform initial OWI calibration by passing Active TestProgram.- Perform complete OWI calibration with running intensive or referenceprogram. It is strongly recommended not to use detergent or detergent tabletsduring the test program and OWI calibration.

1 xblinking

F1 NTC break Cycle stops beforeregular end, drain pumpdrains out, showsfailure indication

- Measure the resistor of the NTC (ca. 50 kΩ at 20°C). - Check, if over night in cold environment, lower than 3°C?

- To measure the NTC under build in conditions unplug the 3 pole NTCconnector on the CB (Slot NTC) and measure between PIN 1 and 3 on the cable.

2 xblinking

F2 Internal WaterLeakage

Water is in the drip tray - Repair the leakage on the sump, softener, regeneration dosage and tub.- Check housing of motor pump heater (MPH), when worn, replace the completeMPH unit.

- Check foam level in the appliance- Check with customer what kind of detergent was used (washing tabs combinedwith short washing cycles can produce too high foam level).- Check inlet hose connection on water tab if soiled.- Check spray arms, if holes are blocked.- Measure the coil of the heater => ca. 25 Ω. - Measure between coil and the metal cover (over 500kΩ). - Check if the output of the CB has ca.230V => when not, control board (CB) isdefective. (See picture left)

- Check NTC sensor => 50 kΩ at 20°C.

Explanation: 25 minutes after Heater relay switched ON, the failure indicationwill appear.

3 xblinking

F3 HeatingSystemDefective

Poor cleaning resultsPoor drying results

Exchange heating element. On a MPH unit check and exchange the pump inaddition. Reassemble all hoses.

- Check the pump housing and remove foreign objects.- Check the outlet hose and install it correct.- Clean the sump and filter.- Clean & unblock the siphon outlet part.- Clean OWI sensor.- Check the solenoid of drain pump => ca. 150Ω. - Check the WI if the switch is working. Replace WI/ OWI.- Check 230V on drain pump connector after “Break by Customer”

4 xblinking

F4 DrainingFailure

Drain pump starts andafter 2 min. the WIdetects sump not empty

- Check connection between Spray pump (Variable Speed Motor) and controlboard.- Check the voltage on the motor. BUS: 5V DC (outer pins of connector)Motor: 230V AC.

5 xblinking

F5 VariableSpeed MotorFailure

After 5 trials toreactivate the spraypump motor the cyclestops before regularend, drain pump drainsout, failure indication

- - F5shownonly inSAM

Spray PumpMotor Blocked(MPH orSmart motorunit)

Soiled dishes, water inthe drip tray,Cycle stops beforeregular end, drain pumpdrains out, no failureindication, only in SAM

- Check pump housing if blocked.- Check motor rotation housing if blocked or worn.- Check motor wiring => ca. 40 Ohms.- Clean sump and tubes.- Replace pump motor.

6 xblinking

F6 Water TapClosed

Only F6 failureindication

- Check filter on hose and inlet connection of the dishwasher.- Open water tap.- Check water inlet hose if blocked.- Check water inlet valve (WV1 => coil has ca. 3,5kΩ. - Check if flow meter (FM) is turning.

7 xblinking

F7 Flow MeterFailure


- Check inlet hose connection on tap if soiled.- Check if the flow meter is soiled. Check if the reed relay is switching.- When sump filling ends in less than 30 sec, exchange aqua stop inlet hose.- When water supply pressure is too high, reduce the flow through of the tap.

- Clean blocked sieve- When water strongly foams advice customer to adjust the rinse aid.- When Pot is turned and filled with water advice customer.- When no stable spray pump (SPM) working clean dirty spray arm.

8 xblinking

F8 Water LevelFailure

Foam in the tub / soiledsieve.Cycle stops beforeregular end, drain pumpdrains out, failureindicationBefore the cycle stops aphase repetition and/orwater filling may occur.

Explanation of failure occurrence:WI (mech.): the WI switches too often, more than 20 times in 2 minutes.OWI: The permanent digital OWI-Signal is missing water.VWI: The Spray Pump Motor measures permanently the water level. When thewater level decreases, the motor current will diminish and the control boardindicates the failure F8.

9 xblinking

F9 ContinuousWater Inlet

Cycle stops beforeregular end, failureindication, drain pumpdrain out until sump isempty. When the levelof 1.5 lt. is reached, thedrain pump runs again.

- Close water tap and check if F9 still occurs. If so, exchange flow meter.- Measure resistor of water inlet valve (WV1) ca. 3,5kΩ. WV1 should be closed. - Check if Output of control board (CB) is permanently switched on. If so,exchange CB.


- Clean the lens of the OWI.- Check the wiring Connection between sensor and control board (CB).- OWI calibration not performed*=> run and pass complete test program.- Change defect OWI.

11 xblinking

FA OWI (OpticalWaterIndicator) –Failure

Too long wash cycle orshort wash cycles withbad result.

*Explanation: After each replacement of OWI, Control Board or Control Boardreprogramming by SAM module, it's mandatory necessary to calibrate the OWI.In order to calibrate the OWI, you need to start and pass active test program,then initial calibration is performed. The whole OWI calibration will becompleted during next regular cycle (only in intensive or reference program). Itis strongly recommended not to use detergent or detergent tablets during the testprogram and OWI calibration. Please note that wrong OWI calibration mayincrease cycle duration significantly.

11 xblinking

FA mechanical WIFailure


- Measure the Micro switch of the WI with a multi meter. Lower 5 Ohms.- Check contact of the WI.- Clean WI, check whether WI blocked.- Check wiring between WI and control board.

12 xblinking

FB MDV (MotorDiverterValve) –Failure


- Check, if the upper and lower spray arms alternate all 30-40 sec.?- Remove the MDV unit and check if the diverter disc in the sump is stuck?- Check if 230V comes from the control board (ZW, DVH) to the MDV?How to check:Start test program and wait until back rinse is over. After the start of the regularwater-inlet the MDV has to have 230V in interval.- Check the 5V signal of cable between the MDV and control board (SAB,DVL)?- Check the solenoid of the MDV (approx. 6, 5 kΩ) and the cable to the MDV? (ZW, DVH).

13 xblinking

FC ASA Waterhardnesssensor Failure(only indicatedin the activetest program)


- Check wiring on the sensors of the water softener if interrupted or weakcontact.- Check wiring if interrupted or weak between electronic of Automatic SaltAdaptation (ASA) of the water softener and the control board.- If the electronic of the water softener is defective, then exchange the Softener

- Check, which of the buttons is jamming (indication by associated LED, see thetable below),Key stuck: LED to blink:Program selection LED of 1’st program

Start Start LED

Reset Reset LED lighted up constantly (no blinking)

Tabs Tabs LED

Power Clean Power Clean LED

Sani Rinse Sani Rinse LED

Zone Selection Both zones LEDs

Delay Delay LED (“clock” symbol)- In case none of the LED is indicating permanently stuck button (buttonaccidentally pressed by customer for time > 30sec.), then cancel the failurekeeping Reset button pressed for 3 sec and run test program (to be sure thatfailure will not appear again).

- - FDshownon the 7-segmentdisplayandreadableby SAMmodule

Stuck buttonof MembraneSwitch

Button which is stuck isindicated by LEDassociated with thebuttonCycle stops beforeregular end, drain pumpdrains out, failureindication

- In case LED is indicating that any of the buttons is permanently stuck, then theexchange of the complete User Interface is necessary (one service part consistsof assembled ABS panel, Membrane Switch and Decorative Insert, afterexchanging the UI, cancel the failure keeping Reset button by pressing 3 sec.and run the test program (in case of Reset button stuck - canceling of the failureis possible only after switch off the appliance and the exchange of the defectiveUI).

14 xblinking

FD Failure on thebig green LCDdisplay


- Check wiring between LCD display and control board

15 xblinking

FE EEPROMFailure


The control board software has an error.- Reprogram the control board, when unsuccessful exchange the CB.

16 xblinking

FF VWI Failure(nocommunication of MPHmotor unit andcontrol board)


- Check with multi meter, if wiring is interrupted between pump and controlboard.- Check with multi meter, if there are weak contacts.- Check coil of pump in the Motor-Pump-Heater unit. When open circuitexchange pump.

Time & PerformanceSymptom Involved parts Actions Possible

FailureIndication

Permanent too longcycles

OWI Sensor - Clean OWI sensor- Check with customer what kind of detergent was used. Washing tablets combined withshort cycles can cause appliance instability (too high foam level)- Check the wiring between sensor and control board (CB), OWI itself is not measurable- Calibrate the OWI with active test program. Complete the OWI calibration with runningintensive or reference program. It is strongly recommended not to use detergent ordetergent tablets during the test program and OWI calibration

-

Program too long ortoo short

Spray arm - Checks spray arms and its support if misaligned or dirty. Clean and refit if necessary.- Clean filter sieve of wash system in sump. Clean sump area.- Educate customer about use of detergent, rinse aid and salt and the functioning of adishwasher.

-

Poor cleaningresults

Poor drying results

Heater element,Spray pump motorunit (MPH),Spray arms

- Check inlet hose connection on water tab if soiled.- Check spray arms if holes are blocked- Measure the coil of the heater => ca. 25 Ω - Measure between coil and the metal cover (over 500kΩ) - Check if the output of the CB has ca.230V => if not, control board (CB) is defective- Check NTC sensor => 50 kΩ at 20°C. - Checks spray arms and its support if misaligned or dirty. Clean and refit if necessary.- Educate customer about use of detergent tablets, rinse aid and salt and the functioning ofa dishwasher.- Clean dishwasher with machine cleaner.

1 xblinking /F13 xblinking /F3

Soiled dishes Spray pump,Heater element,Detergent dispenser

- Run test program to check the components.- Check spray pump and spray arm rotation.- Check the heat-up of the water.- Check if detergent flap is working

3 xblinking /F3

Appliance doesn’tfinish cycle or cycleis too long(machinecontinuously takesand drains water)

OWI Machine had detected big level of foam and ran foam management procedure.- After machine stops, run normal washing cycle without detergent to remove the foamresidues.- Educate customer that the use of the tablets is strongly not recommended for quick andlow-temperature washing programs.

-

Dishwasher doesnot drain out soiledwater

Drain pump,Sump,Wash filter sieve

- Clean filter sieve of wash system in sump.- Clean sump area.- Educate customer about use of detergent, rinse aid and salt.

4 xblinking /F4

Dishwasher doesnot stop

Spray arm - Check spray arms and its support. Refit if necessary.- Clean filter sieve of wash system in sump. Clean sump area.- Educate customer about use of detergent, rinse aid and salt and the functioning of adishwasher.

-

No working ofdraining pump

Drain pump - Check the pump housing and remove foreign objects- Check the outlet hose and install it correctly.- Clean the sump and filter.- Clean & unblock the siphon outlet part / remove closure disk on siphon connection- Clean OWI sensor- Check the solenoid of drain pump => ca. 150Ω - Check the WI if the switch is working. Replace WI/ OWI.

4 xblinking /F4

Spots/ Marks on thedishes

Softener - Check if salt is used. Check if coil of regeneration valve has ca 3 k Ohms.- Replace Softener.- Educate customer about use of detergent, rinse aid and salt and the functioning of adishwasher.

-

WaterSymptom Involved parts Actions Possible

FailureIndication

Water in the driptray

Sump,Softener,Regenerationdosage,Tub

- Check for leakages 2 xblinking /F2

Foam in the tub /soiled sieve

WI/ OWI/ VWI - Clean blocked sieve- Advice customer to adjust the rinse aid.- When Pot is turned and filled with water advice customer.- If the spray-pump (SPM) works not stable clean dirty spray arm.

8x blinking/ F8

Leakage under theDW

Hoses,Regeneration dosagewith Flow meter,Sump

-Check and correct the gasket and filter sieve of the water inlet hose.-Check and correct the installation of the water inlet hose.-Check installation of drain hose if squeezed, or too much stick in the siphon.-Check connection between softener and regeneration dosage.-Check sump area

2 xblinking /F2

Leakage behind theDW

Hoses -Fit in place correct the gasket of the water inlet hose.-Check and correct the installation of the water inlet hose.-Check installation of drain hose if squeezed, or stuck into the siphon too deep.

-

Leakage under thedoor on the floor orsocket unit

Door gasket -Check and replace door gasket-Dishwasher wrong levelled out.

-

Leakage on thesides on the floor orsocket unit

Door gasket -Adjust feet to bring dishwasher in balance.-Replace door gasket

-

Condensation dropsunderneath theworktop.

Condensation onthe surface of theneighbour cupboardfurniture

Door, Door gasket, - Check if dishwasher is aligned installed in the kitchen to have proper closing of thedoor. Adjust the dishwasher that the door is closing properly. Check the closing with asmall film of cooking oil between metal frame and gasket.- Condensation in the top corners. Use service door hook(spare part number: 4812 401 18887)- Check by seal print (cooking oil) the door gasket. If it fits not correctly exchange theU-shape door gasket. (spare part number: 4812 466 68564)

-

MotorSymptom Involved parts Actions Possible

FailureIndication

Spray pump motor - Run test program to check the components.- Check spray pump and spray arm rotation.

F5Strange noise

Drain pump motor - Check for foreign objects in drain pump housing.- Run test program to check the components.

4x blinking/ F4

Blocked/ stuckmotor

Spray pump motor(MPH)

- Check pump housing if blocked- Check motor housing if blocked or worn- Check motor wiring => ca. 40 Ohms- Clean sump and tubes- Replace spray pump motor

F5

HeatingSymptom Involved parts Actions Possible

FailureIndication

Wet dishes Heater unit,MPH unit

- Check the heat-up during test program (1, 5 °C in 1 min.)- Check inlet hose connection on water tab if soiled.- Check spray arms, if holes are blocked- Measure the coil of the heater => ca. 25 Ω - Measure between coil and the metal cover (over 500kΩ) - Check, if the output of the CB has ca.230V => when not, control board (CB) isdefective- Check NTC sensor => 50 kΩ at 20°C. - Check spray arms and its support if misaligned or dirty. Clean and refit if necessary.- Educate customer about use of detergent tablets, rinse aid and salt and the functioning ofa dishwasher.

1 xblinking /F1

GeneralSymptom Involved parts Actions Possible

FailureIndication

One button LED ison and failure codeFD appears

Control panel - Check, which of the buttons is jamming.

Program selection/ Start/ Reset/ Tabs/ Power Clean/ Sani Rinse/ Zone Selection/ Delay

In case LED is indicating any of the buttons is permanently stuck, then exchange thecomplete User Interface. After exchanging the UI, cancel the failure by pressing 3 sec theReset button. Run the test program.

When none of the LED is indicating permanently stuck button (button accidentallypressed by customer longer than 30sec.), then cancel the failure by pressing the Resetbutton for 3 sec and run the test program (to be sure that the failure will not appear again).

FD

Release of houseinstallation Fuse

Heating element,Control board

- Check if short circuit in heater element or control board- Replace heating element- Replace control board- House Installation incorrect, too many appliances on one fuse.

Noise duringwashing cycle

Spray arms - Check and correct spray arms

Noise duringdraining

Drain pumpSump

- Check foreign objects- Clean pump filter

Actually important Service Bulletins for the Point dishwashing range

Service Bulletin Title 12NC Involved Failure codesSerial connector of the water indicator 4812 718 40192 F2/ F4/ F11Flow meter failure 4812 718 40201 F7Condensation Door Hook 4812 718 40204VariableSpeedMotor Noise 4812 718 40206Dishwasher trip the RCD of the residential installation 4812 718 40207No reaction or delayed reaction on full door display appliances 4812 718 40302Motor fixation bracket MPH 4812 718 40303 F5

Documents

SERVICE BOOKLET C DISHWASHING RANGE POINT · PDF file · 2009-11-30level Drain Pump Motor Water Indicator 13 Ventilator Motor (VM) starts Only in models with drying fan Fan 14 Regeneration