Alarm Code #421
Model CPE52, 53, 14, 15, 15V, 16
Failure Lock or short circuit of Condenser fan
motor
Countermeasure
<<
Cause -(2) >>
Other
motors and Heaters are turned ON due to fused and stuck contact
points of contactors and so on.
<
Check >
Select
“ Display test ” under the test mode, and check if all loads are turned OFF.
<
Action >
Remove the causes
preventing the other loads from turning OFF.
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