MovinCool Classic 10 Service Manual - Manual (Page 44)

Repair Section 44
(2) For unit serial number from April 2011 (0411) to Present
• Measure resistance across the terminals of the
fan motor.
• If the measured resistance is not equal to the
standard values listed above, replace the fan
motor.
ILL00562-00
CF2
CF1
CN21
Resistance at 68 °F (20 °C)
CF1 - CN21-3 CF2 - CN21-3
Approx. 8.2 ohm Approx. 9.8 ohm
8.7 Capacitor Inspection (For Fan Motor and Compressor)
(1) Ohmmeter method
• Set the ohmmeter to the 10 M ohm range.
Place the two probes against the two terminals
of the capacitor. At first, the ohmmeter
indicates small value, then the reading should
gradually increase towards infinity (
),
indicating that the capacitor is charging. If the
reading indicates infinity immediately (open),
or the ohmmeter fails to move from 0 ohm
(shorted), replace the capacitor.
(2) Capacitance tester method
•
WARNING
• Properly discharge the capacitor(s) before and after testing. Failure to discharge the
capacitor may cause damage to the test equipment and/or unit, and result in personal
injury (electrical shock) or death.
Unit Serial Number Capacitor
Rated
Voltage
Capacitance
From February 2011 (0211)
to March 2011 (0311) For Fan Motor 450 V 10 μF
For Compressor 450 V 55 μF
ILL00567-00
Use a capacitance tester to check the capacitors for the values indicated below. If the value tested
is not within 10% of the indicated capacitance, replace the capacitor.
From April 2011 (0411)
to Present For Fan Motor 250 V 25 μF
For Compressor 450 V 55 μF