(3) Check remote control unit.
(4) Check fuse on the indoor P.C.Board.
(5) Check TIMER on the remote control unit.
Yes
First remote control unit is defective.
No
No
Measure resistance of indoor and
outdoor fan motor (FM) winding.
Measure resistance of compressor
motor (CM) winding.
Replace the fuse.
Yes
Yes
Cancel the timer mode.
ON
1.Try to run with another remote
control unit.
2.Is the operation good ?
In the case that the remote control
transmission section is dirty, clean it.
In the case that the remote control
reception section in front of indoor unit
is dirty, clean it.
1.Is timer turned ON ?
2.Is displayed on remote control ?
1.Check fuse (F) on indoor P.C.Board
for continuity.
2.Is fuse blown ?
Is operation lamp ON ?
Indoor P.C.Board is defective.
57
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