Troubleshooting - Midea WQP6-3603A Technical Service Manual

5. Reverse the above procedure to install. And check out all connectors connected well.

Troubleshooting

SYMPTOM CHECK FOR THE FOLLOWING
The led show"E1" The water supply is turned off.
（ Dishwasher will
Defective water fill valve.
Low water pressure.
not fill with water
or will not fill
Obstructed water fills valve or hose.
properly.）
Damaged or defective wiring.
Defective pressure switch for high
water level safeguard.
Defective flowmeter.
Heavy water usage elsewhere in home.
Defective PCB assembly
Dishwasher will Defective drain pump.
not
Obstructed drainhose
pump out.
Defective PCB assembly
Damaged or defective wiring.
Dishwasher runs Low input voltage.
but. will not heat.
Defective Thermal resistor
Damaged or defective wiring.
Too little water fill.
Defective micro-switch of pressure
switch assembly.
Defective heating element.
Defective PCB assembly
(The led show"E4" Defective
safeguard
（overfall alarm）
Damaged or defective wiring.
Defective PCB assembly
Water leaks from dishwasher.
Do not work when The door not close well
press start Defective door switch contacts.
Defective door handle assembly.
Damaged or defective wiring.
Defective PCB assembly
Too little water fill. Dishwasher not level.
Lave vaisselle ELVC 491B
micro-switch for overfall
20
REMEDY
Turn the water supply on.
Replace the water fill valve.
Minimum water pressure of 20 PSI.
Disassemble and clean the water fill valve and
hose.
Repair the wiring.
Replace the pressure switch.
Replace the flowmeter
Use dishwasher when water usage is at a
minimum.
Replace the PCB assembly
Replace the drain pump.
check the drainhose
Replace the PCB assembly
Repair the wiring.
The lowest input voltage is 198V
Replace the Thermal resistor
Repair the wiring.
See "Too little water fill."
Replace the micro-switch of pressure switch
assembly.
Replace the heating element.
Replace the PCB assembly
Replace the micro-switch
Repair the wiring.
Replace the PCB assembly
See "Water leaks from dishwasher"
close the door
Replace the door switch.
Replace the door handle assembly.
Repair the wiring.
Replace the PCB assembly
Level the dishwasher.