Alarm Code #412
Model CPE52, 53, 14, 15, 15V, 16
Failure Disconnection of Compressor Motor ( MC
or MCL )
Countermeasure
<<
Cause -(4) >>
Defective
Main contactor ( MC or MCL )
<
Check > ( Refer to Page F-29 )
Operate
the compressor under the test mode, and check the voltage on MC contactor coil.
Check
simultaneously AC 24V circuit current value with a clamp meter.
<
Action >
• In
case the coil voltage is normal ( AC 24V ±10% ) and MC does not work : Replace
MC ( or MCL ).
• In
case AC coil current is out of approx. 0.3 – 2A range ( at AC 440V ): Replace
MC ( or MCL).
• In case no coil
voltage is detected : Replace PCB-C board.
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