Fisher & Paykel RX256DT4X1, Service Manual

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Component Description Test Procedures
Overload/Relay When voltage is connected
and relay is cool, current
passes through relay to start
winding.
After a short time, current
heats the resistor in relay and
resistance will rise blocking
current flow through relay.
Start winding remains in the
circuit through run capacitor.
Solid state relay plugs directly
on compressor start and run
terminals. Relay terminals 2
and 3 are connected within
relay. Run capacitor is
connected to relay terminal 3.
L2 side of 120 VAC power is
connected to relay terminal 2. 1. Disconnect power to the refrigerator.
2. Remove relay cover and disconnect leads.
3.
Check resistance across terminals 2 and 3 with an ohmmeter:
Normal = 3 to 12 ohms
Shorted = 0 ohms
Open = infinite ohms
Ice maker
See “Ice Maker” section for
service information.
ECM condenser
motor Condenser fan moves cooling
air across condenser coil and
compressor body.
Condenser fan motor is in
parallel circuit with
compressor. Check resistance across coil.
Evaporator fan
motor Evaporator fan moves air
across evaporator coil and
throughout refrigerator
cabinet. 1. Disconnect power to unit.
2. Disconnect fan motor leads.
3. Check resistance from ground connection
solder. Trace to motor frame must not exceed .05
ohms.
4. Check for voltage at connector to motor with unit in
refrigeration mode and compressor operating.
Fresh food light
switch Single pole, single throw
switch completes circuit for
light when door is open. Check resistant across terminals.
Switch arm depressed
“NO” terminals Open
Switch arm up
“NO” terminals Closed
Freezer
light/interlock switch Single pole, Double throw
switch completes circuit for
light when door is open.
Completes circuit for
dispenser when door is
closed. Check resistant across terminals.
Switch arm depressed
“NO” terminals Open
”NC” terminals Closed
Switch arm not depressed
“NC” terminals Open
“NO” terminals Closed