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Check
code
Outdoor
LED display
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[P26]
[Short-circuit of compressor drive element]
Are connections of
compressor lead and reactor correct?
(Check referring to the Wiring diagram.)
NO
Correct wiring.
YES
Replace outdoor
P.C. board.
YES
Does the same trouble occur in
operation without compressor lead?
Check compressor. (Layer short, etc.)
Failure → Replace
NO
[P29]
[Position detection circuit trouble]
—
No code
[Other trouble] --- Compressor step-out from sudden changes in load etc.
* Outdoor LED indication occurs but it automatically restarts and does not confirm any
trouble.
* May occur also when the compressor is open phase and wiring disconnected.
Check outdoor P.C. board.
Failure → Replace
* When replacing outdoor P.C.board, replace
the fuse.
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