Service Mode; Diagnosing Electronic Control Boards; Main Control Diagnostics - Haier GE GDF510P M4 Series Service Manual

Service Mode

Entering Service Mode
NOTE: Entering Service Mode resets the CSM.
The dishwasher must be in Consumer Error
Mode to enter Service Mode. Entering Service
Mode will reset the CSM, allowing loads to be
checked for the cause of the CSM to trip. The
control will blink the Normal LED (light on model
GDF510PxJxx) every few seconds for the number
of times corresponding to the load being tested.
While in Consumer Error Mode
• Press and hold Cycle Select pad for 5
seconds.
• Press Cycle Select to select or increment
each test.
• Press Start, to start and stop each test.
LED Load to
Blink # Control
Drain
1
Pump
Water
2
Valve
Circulation
3
Pump
4 Heater
Detergent
5
Module
6
(Some Dry Fan
Models)
Service Mode will exit after 5 minutes of inactivity.
Exit Service Mode by pressing and holding Cycle
Select and Start pads for 5 seconds.
Timeout / Notes
Attempts to empty.
Takes approximately 75
seconds from normal
level.
Attempts to fill to
normal level. Takes
approximately 1 minute.
Runs for approximately
2 minutes, alternating
lower spray arm to
mid and upper spray
systems every 30
seconds.
Turns on heater for a
maximum of 2 minutes.
Turns on detergent
module solenoid for a
maximum of 2 minutes.
Turns on fan assembly
for a maximum of 2
minutes.

Diagnosing Electronic Control Boards

Diagnosing the main control and User Interface
(UI) control are covered in this section. Many
components can be checked from the main
control, which can be accessed with the door
on or removed if needed. Some connectors are
located through the bottom cover to allow easy
access to AC supply connector, door harness
and ACM or Appliance Control Module. The
ACM or smart appliance allows the appliance to
communicate with the utility meter when peak
rates occur, and allows the appliance to respond
and operate in a manner that will reduce energy
usage of that appliance at high/critical demand
rates. For more on the module and display, refer
to the separate smart appliance documents.
WARNING: GEA Factory Service Technicians
are REQUIRED to follow Lockout / Tagout
(LOTO) 6 Step Process prior to beginning
repair.
Drain and Wash Pump
DC
Harness Motors Connector
Connector

Main Control Diagnostics

The service LED has a continuous flash which
only advises the main control has power. The
service LED no longer has any blink patterns
which were used to aid diagnostic in the past.
– 46 –
Fuse,
Drain and
Wash
Heater
Pump
Connector
Motors