Fisher & Paykel RX256DT4X1 FP Service Manual page 29

Component
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.
and 3 are connected within
relay.
connected to relay terminal 3.
L2 side of 120 VAC power is
connected to relay terminal 2.
Ice maker
See "Ice Maker" section for
service information.
ECM condenser Condenser fan moves cooling
motor air across condenser coil and
compressor body.
Condenser fan motor is in
parallel circuit with
compressor.
Evaporator fan Evaporator fan moves air
motor across evaporator coil and
throughout refrigerator
cabinet.
Fresh food light Single pole, single throw
switch switch completes circuit for
light when door is open.
Freezer Single pole, Double throw
light/interlock switch switch completes circuit for
light when door is open.
Completes circuit for
dispenser when door is
closed.
Description
Relay terminals 2
Run capacitor is
3.
solder.
ohms.
Test Procedures
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
Check resistance across coil.
1. Disconnect power to unit.
2. Disconnect fan motor leads.
Check resistance from ground connection
Trace to motor frame must not exceed .05
4. Check for voltage at connector to motor with unit in
refrigeration mode and compressor operating.
Check resistant across terminals.
Switch arm depressed
"NO" terminals
Switch arm up
"NO" terminals
Check resistant across terminals.
Switch arm depressed
"NO" terminals
"NC" terminals
Switch arm not depressed
"NC" terminals
"NO" terminals
29
Open
Closed
Open
Closed
Open
Closed
321023