Fisher & Paykel RF175W, Service Manual

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Note: Before any testing is carried out, ensure the product has an ice bin in place and the icemaker
arm is in the down position.
Procedure:
•
Disconnect the refrigerator from the power supply.
•
Remove the power module to expose connectors.
•
Remove the connector from the Icemaker PCB.
•
Check the resistance of the motor between pins 5 & 6 - resistance should be 35
Ω
+/- 5%.
•
Check the tact switch continuity between pins 4 & 7 - the switch should be closed.
Note: To identify pin numbering, Pin 10 and 11 are white wires
An alternative method of testing the icemaker unit is to use a 9-volt battery plus battery terminal
and a multi meter. With the meter probes placed into the back of the icemaker 4 way socket onto
the yellow and blue wires, check the continuity of the circuit to the tact switch in the ice mould tray.
The switch should be closed.
By applying a 9 volt DC supply across the white and red wires of the plug to the icemaker motor,
you can drive the ice mould tray forward to a full twist of the tray and the tact switch will close
again.
Note:
•
9-volt battery positive to the red wire to go forward.
•
9-volt battery positive to the white wire to go backwards.
Checking the tact switch Advancing the motor
Pins 10 & 11
Motor - Pins 5 & 6
Tact switch continuity –
Pins 4 & 7