Troubleshooting; Flashing Lights; Will Not Start - Haier GE GDF450P R0 Series Technical Service Manual

This troubleshooting section is an overview of diagnostic capabilities of the electronic control. The
control also features retrieval of fault codes when Consumer Error Mode is initiated; operation of loads
is achieved in Service Mode.
Details on Error Mode and Service Mode, as well
as Service LED are located in the Main Control
Board section of this service guide.

Flashing Lights

If the control beeps and some LED's flash, this indicates the dishwasher door may be in the open
position. If the User Interface (UI) is flashing all of the LED's, this is an indication of a tripped CSM
(Current Sense Module) and the dishwasher is non-responsive, all the LED's will flash until the CSM is
reset. CSM diagnostics are covered in this service guide.

Will Not Start

• Check voltage input to the dishwasher.
• Verify door switch operation, consult Consumer Error Mode, in the Electronic Controls section of
this service guide.
• Door must be closed within 5 seconds of pressing Start Pad (Safety Feature).
• Check the main board Service LED (see Main Control Board under Structure in this guide).
• Verify that the dishwasher is not in Demo Mode.
• CSM (Current Sense Module) tripped. Please refer to the Current Sensor Module (CSM) section
under Structure in this service guide.
Symptom: If the start button either does not respond or it makes a triple beep sound every time it's
pressed AND all other buttons respond as normal.
Diagnosis: The dishwasher may be in Demo Mode.
Solution: To exit Demo Mode, For models with three or more pads, press the Dry and Start pads
together momentarily within 5 minutes of powering on the dishwasher. Note: Models with one or
two pads do not have a Demo Mode.

Troubleshooting

– 12 –
Single mounting screw