No Circulation And Drain - Haier GE CDT800P2N3S1 Technical Service Manual

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No Circulation and Drain

Circulation and Drain Pumps
Access main control, place dishwasher in Service
Mode, run circulation and drain tests. . Check for
120 VAC on connector J703 pin 3 (OX) to pin 4
(CX) for circulation pump and pin 1 (NX) to pin 2
Diagnose drain pump, if drain pump checks OK,
Circulation pump is at fault. Replace Fuse and
Motors Fuse
A motors fuse is located on the main control board. If found open while testing for no circulation and
drain pump operation, the fuse and bad pump motor must be replaced. If 120 VAC is not present at
J703-3 to J703-4 for circulation pump or J703-1 to J703-2 for drain pump, remove and check the fuse
at the points shown in the below illustration. If an open fuse is found, replace the fuse and bad pump.
The drain pump can be diagnosed by removing connector J703 from the control and check the blue to
yellow wires using a multimeter on the highest resistance setting. If the reading is between 0.3 to 5.0
mega-ohm, then the drain pump is good. If it measures OL (overload or open), it indicates a bad drain
pump. If the drain motor checks OK, replace the circulation pump motor.
The circulation pump is a DC motor and cannot be checked for a resistance reading, it contains internal
diodes and rectifiers.
will not run
(YX). Is there 120 VAC?
No
Yes
inoperative Pump
Yes
Is fuse on main
control open ?
– 57 –
Remove Sump Module to
check the AC wire harness
Replace
OK Harness
Replace
No Main
Control
Pump Motors Fuse
Test Points
Open