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Contents

Technical Service Manual

Dishwasher

Specification 2

Test program 24-28

Theory of parts 5-23

Function Description 3-4

Inspection 29-33

Location 5

PCB 6-7

Inlet valve 8-10

Drain pump 11-12

Heater 13-14

Washing pump 15-16

Procedure 25

Error code 26-28

Water circuit 3-4

Pressure switch 17

NTC 18-19

Flowmeter 20-21

Safety Hose 22-23

Troubleshooting 34-38

SAFETY NOTICE

This documentation is only intended for qualified technicians
who are aware of the respective safety regulations.

1 -

Содержание WQP12-9242B

Страница 1: ...cation 5 PCB 6 7 Inlet valve 8 10 Drain pump 11 12 Heater 13 14 Washing pump 15 16 Procedure 25 Error code 26 28 Water circuit 3 4 Pressure switch 17 NTC 18 19 Flowmeter 20 21 Safety Hose 22 23 Troubl...

Страница 2: ...sic operation instructions please refer to the instruction manual attached with each unit Electrical supply 220 240V 50Hz Supply water pressure 0 04MPa 1 0MPa Supply water temperature below 60 2 Model...

Страница 3: ...low switch air breaker inlet valve inlet hose Regeneration water route upper spray arm top spray tube Inlet water route lower spray arm softener Water circuit scheme regeneration valve Cycle water rou...

Страница 4: ...hing indicated by blue route Cycle washing action is driven by washing pump motor Water can obtain the power during it passing through the working washing pump then be pumped into spray arm pass from...

Страница 5: ...Heat Proof Micro switch Dispenser Sump Water inlet Air breaker Pressure switch 83 63 only for models whose water filling be controlled by pressure switch Pressure switch 140 120 Please Note Exploded v...

Страница 6: ...o the door 2 The control panel will drop down and be free of the door But the wiring will still connected to the control panel S 08 1 2 on Off Access PCB 3 Disconnect the connector form PCB 4 Remove t...

Страница 7: ...alve RE Thermister ML Washing Pump PS Drain Pump D ED Dispenser EV1 Inlet valve EV2 Softener EV3 Halfload Valve ISS Salt detect ISB Rinse detect IAQS Overflow detect FM Flowmeter FAN Fan PO Pressure S...

Страница 8: ...er enter into machine when it receive the order given by controller to air breaker connect to inlet water hose terminals electric coil inside The defeat point 1 The valve coil is broken so the valve c...

Страница 9: ...r valve 7 Reverse the above procedure to install 1 Open the control panel and take out the PCB 2 Unplug the CON3 and P4 wires then use the multi meter shelf to measure resistance between the blue wire...

Страница 10: ...board top panel left side panel and middle rear crosspiece 3 Check the valve filter if the valve filter is blocked we need clear the residues 4 If the valve filter is clear and the valve can t inlet w...

Страница 11: ...tor will be very easy to start The defeat point 1 The motor coil is broken so the drain pump can t work It will cause the E2 E4 or E1 error 2 The magnetism of motor rotor is weak so drain pump cannot...

Страница 12: ...bel and disconnect the two terminal lugs from the drain pump 4 Remove screws securing the drain pump to sump then remove drain pump 5 Reverse the above procedure to install Access drain pump Inspect d...

Страница 13: ...e heater cannot work It will cause the E3 error 3 The connector is loose so the heater cannot work It will cause the E3 error Heater Theory of parts Bottom View The work principle Technical data Locat...

Страница 14: ...arts Bottom View Access heater 1 Drain off the water in the dishwasher and disconnect the power supply Note Make sure to remove remained water in the dishwasher If not wet the floor 2 Remove bottom bo...

Страница 15: ...or will work It will cause E3 error 3 The connector is loose the wash pump can t work It will cause E3 error 4 The rotor is locked by residues so the wash pump can t work It will cause the E3 error 5...

Страница 16: ...a 31 0mm 6 Remove the clamp fastening interconnect hose to the lower nozzle 7 Remove the clamp fastening interconnect hose to heater 8 Remove the screw and disconnect the ground wire from the wash pum...

Страница 17: ...trol the level of water in appliances May also provide flood protection In our production the pressure switch is to control the water level in appliance like 83 63 serial May also provide flood protec...

Страница 18: ...e Temperature Coefficient Thermistor is integrated into sump which is used for measuring temperature of water in the tub Access Washing Pump 1 Remove bottom board 2 Remove two screws securing the NTC...

Страница 19: ...he RE connector shown in below picture then use the multi meter shelf to test resistance between two blue wire the normal resistance is shown in below table 3 I f the resistance is not correct it mean...

Страница 20: ...red in appliance it consists of impeller tongue tube and terminal etc When water pass through the flowmeter moving water can rotate magnetic impeller the tongue tube can sense the impeller s magnetic...

Страница 21: ...end sound In this case it means something wrong with flowmeter circuit We should check the connection first If the problem hasn t been solved by re connection we should replace the air breaker Access...

Страница 22: ...r space between two layers the foaming material will expand and lock the hose In this situation the machine might set off E1 alarm Electronic Aquastop safety hose also has two layers But the differenc...

Страница 23: ...ce just as universal water inlet hose 1 Open the control panel and take out the PCB 2 Unplug the CON3 and P4 wires then use the multi meter shelf to measure resistance between the blue wire EV1 and wh...

Страница 24: ...g you can press Rightmost Program button to jump into next step except inlet valve step Note The way to activate test program is slightly different between different models How to activate Test Progra...

Страница 25: ...ll run for 60s in this step Run washing pump and heating element until the water temperature reaches 57 Then the machine will pause Press Rightmost Program button to jump into the next step Open regen...

Страница 26: ...ain Rinse and Drying indicators would flash simultaneously Other error alarms can be deduced from this The corresponding relation between indicator and error code shown in above figure Notice the majo...

Страница 27: ...nd continue draining for 60 seconds For the models controlling water filling by pressure switch If the drain pump has been running for 4 minutes but the water level pressure switch hasn t reset E2 wou...

Страница 28: ...if the model with the pressure switch 83 63 drain pump would run till the pressure switch reset and continue draining for 60 seconds and all the other components will be stopped immediately At the sam...

Страница 29: ...till wrong Replace the Inlet Valve to solve problem Check whether the Pressure Switch 83 63 circuit is correct or not Make a check of Inlet Hose solve the problem Inlet Hose is blocked or kinked OK Fa...

Страница 30: ...of Drain Pump circuit and check again OK Still wrong Replace the Drain pump to solve problem Make a check of Drain Hose solve the problem Drain Hose is blocked or kinked OK Failure Failure When there...

Страница 31: ...he wire of Heater circuit and check again OK Still wrong Replace the Inlet Valve to solve problem Check whether the Washing Pump circuit is correct or not mentioned in section 4 Reconnect the wire of...

Страница 32: ...ollows Remove two side panels Remove the water from the bottom board and make sure there is no water at the bottom board Restart the dishwasher with a strong or standard wash program as a leakage coul...

Страница 33: ...ilure of thermistor Check whether the NTC circuit is correct or not mentioned in section 4 Reconnect the wire of Flowmeter circuit and check again Not solve the problem OK Replace the NTC to solve pro...

Страница 34: ...Troubleshooting 34...

Страница 35: ...Troubleshooting 35...

Страница 36: ...Troubleshooting 36...

Страница 37: ...Troubleshooting 37...

Страница 38: ...Troubleshooting 38...

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Delfa WQP12-9242B, Техническое и сервисное руководство

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