Compressor & Inverter - KitchenAid KSSC36FKB00 Technical Education

Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
COMPRESSOR & INVERTER
Pins
Refer to pages 4-4 and 4-9 for the procedures
for servicing the inverter and compressor.
1. Run the diagnostics tests (see page 6-1)
and check for the proper operation of the
compressor in step 05.
NOTE: If the compressor does not operate
perform the following steps.
2. Connect power to the refrigerator and
allow it to enter the "cooling" mode.
3. While the refrigerator is in the cooling
mode, the inverter and main control board
voltages should be as shown in the chart
below.
4. Set the voltmeter to read the voltages
shown in the chart.
• If the 3 to 6 volts DC is not present at
the inverter red/white and red wires,
check P7-3 and P7-8 on the main con-
trol board for 3 to 6 volts DC. If the volt-
age is not present, replace the main
control board.
Electrical Shock Hazard
COMPONENT INPUT/ OUTPUT LOCATIONS
Inverter
Main Control Board P7-3 (Red) & P7-8 (Red/White)
5-3
• If the 3 to 6 volts DC is present at the
main control board, continue with step 5.
5. Unplug the refrigerator or disconnect the
power.
6. Disconnect the wire connector going to
the compressor.
7. Set the ohmmeter to the R x 1 scale.
8. Touch the meter leads to any two pins.
The meter should indicate approximately
9 to 10 Ω. Check between each set of pins
to test all three windings.
9. Set the ohmmeter to the highest scale.
10. Touch one meter lead to the cabinet ground
and the other lead to each of the three
compressor terminals. The meter should
indicate an open circuit (infinite).
Red/White & Red Wires
Black & White Wires
VOLTAGES
3 To 6 Volts DC
120 Volts AC
3 To 6 Volts DC