Service Mode; Diagnosing Electronic Control Boards - Haier GE CDT800P2N3S1 Technical Service Manual

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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 every few seconds for the
number of times corresponding to the load being
tested.
While in Consumer Error Mode
• Press and hold Cycle Select or furthest button
on left (some models) for 5 seconds.
• Press Cycle Select or furthest button on left
(some models) 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 Dry Fan
Heater
7
Relay Test
Service Mode will exit after 5 minutes of inactivity.
Exit Service Mode by pressing and holding the
Cycle Select and Start pads for 5 seconds, or by
pressing any other pad.
Timeout / Notes
Attempts to empty.
Takes approximately 75
seconds from normal
level.
Attempts to fill to
normal level. Takes
approximately 1 minute.
Changes spray arm (via
changing diverter) every
30 seconds. Runs for
maximum of 2 minutes.
Turns on heater for a
maximum of 2 minutes.
Turns on detergent
module solenoid for a
maximum of 2 minutes.
Turns the door fan ON/
OFF for models that
support this feature.
If the CSM trips, replace
the heating element

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
Connect Plus Module (sold separately) 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 information on
the module and display, refer to the separate
Connect Plus documents.
WARNING: GEA Factory Service Technicians
are REQUIRED to follow Lockout / Tagout
(LOTO) 6 Step Process prior to beginning
repair.
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