Mitsubishi Alarm Code #481 cause 3



Alarm Code #481
Model CPE52, 53, 14, 15, 15V, 16
Failure Short circuit of Evaporator coil heater Lo ( Sub-heater )
Countermeasure
<< Cause -(3) >>
Other motors are turned ON due to fused and stuck
contact points of contactors and so on.
< Check >
Select “ Display test ” under the test mode to turn
OFF all contactor relays, and check if all loads are
turned OFF.
< Action >
Remove the causes preventing the other loads
from turning OFF.

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