Service manual

Repair Section

8.7 Inspection of Fan Motor

• Measure resistance across the terminals of the

fan motor. (All terminals must be disconnected

from the unit.)

• Between terminals (at 77 °F (25 °C))

- J6-CF1 Approx. 6.8 ohm

- J6-CF2 Approx. 10.5 ohm

- CF1-CF2 Approx. 19.0 ohm

• If the measured resistance is not equal to these

standard values, replace the fan motor.

8.8 Inspection of Compressor Motor

• Measure resistance across the terminals of the

compressor motor. (All terminals must be

disconnected from the unit.)

• Between terminals (at 77 °F (25 °C))

- R-C Approx. 0.9 ohm

- C-S Approx. 2.0 ohm

- S-R Approx. 2.9 ohm

• If the measured resistance is not equal to these

standard values, replace the compressor. The

overload relay is internal to the compressor.

8.9 Inspection of Wiring Connection

• Refer to the Wiring Diagrams on page 20 and check for connection of each wire.

8.10 Inspection of Thermistor

• Using an Ohm-meter, check the resistance value across the 2-pin connector. At normal

temperature (77 °F (25 °C)) either thermistor (room or freeze) should measure approximately

10k ohm.

I002198

CF1 (White)

CF2 (Brown/White)

J5 Low (Red)

J6 High (Black)

Ground

(Green/Yellow)

I001810