MovinCool Office Pro W20 Service Manual - Manual (Page 50)

Repair Section
50
9.7 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. 10.6 ohm
- J6-CF2 Approx. 50.2 ohm
- J5-J6 Approx. 2.3 ohm
• If the measured resistance is not equal to these
standard values, replace the fan motor.
9.8 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. 0.6 ohm
- C-S Approx. 1.6 ohm
- S-R Approx. 2.1 ohm
• If the measured resistance is not equal to these
standard values, replace the compressor. The
overload relay is internal to the compressor.
9.9 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 10
k ohm.
9.10 Inspection of Wiring Connection
• Refer to the Wiring Diagrams on page 27 and check for connection of each wire.
ILL00139-00
CF1 (White)
CF2 (Brown)
J5 Low (Red)
J6 High (Black)
Ground
(Green/Yellow)
I002249
C
S
R