Mitsubishi Alarm Code #320, #321 cause 3



Alarm Code #320, #321
Model CPE52, 53, 14, 15, 15V, 16
Failure Disconnection (#320) or Short circuit (#321) of Ambient temperature sensor (TA)
Countermeasure
<< Cause –(3) >>
Defective PCB – C board
< Check > ( Refer to Page F-1, 2, 3 )
Check the voltage between the following check pins on PCB-C board.

< Action >
Out of Allowable Range : Replace PCB-C board.

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