Mitsubishi Alarm Code #471 cause 1



Alarm Code #471
Model CPE52, 53, 14, 15, 15V, 16
Failure Short circuit of Evaporator coil heater Hi ( ALL heaters )
Countermeasure
<< Cause -(1) >>
Short circuit of all evaporator coil heaters
< Check > ( Refer to Page 25 )
Supply electricity to all heaters under the test mode, and check the current with the
LED, the LCD or a clamp meter.
< Action >
In case the current is the following value at each Line*, replace the evaporator heater.
• CPE52, 53 : approx. AC 11A or over ( at AC 440V )
• CPE14, 15 : approx. AC 15A or over ( at AC 440V )
• CPE15V, 16 : approx. AC 9A or over ( at AC 440V )
* HR1 : L1 (15B), L2 (24B), L3 (20B)
HR2 : L1 (15A), L3 (20A)

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