No Circulation - Haier GE GDF450P R0 Series Technical Service Manual

No Circulation

Circulation Motor Fuse
The circulation motor fuse is located on the main control board. The fuse is not removable. Test
continuity between each fuse by touching the touch pads TP501 and TP502. The machine control
board has a conformal coating (clear coat). Press hard to break this coating. If an open fuse is found,
replace the machine control and circulation pump. If the fuse has continuity, check for 120 VAC from
J504-3 (orange) to J504-4 (brown) and if voltage is good, replace the circulation pump.
The circulation pump is a DC motor and cannot be checked for a resistance reading, it contains internal
diodes and rectifiers.
J504-3
TP501
Orange
Circulation Pump
– 27 –
TP502
Brown
J504-4