(2)Check remote control unit.
1.Try to run with another remote control unit.
2.Is the operation good ?
Yes
First remote control unit is defective.
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.
(3) Check fuse on the indoor P.C.Board.
1. Check fuse (F) on indoor P.C.Board | Yes | |
for continuity. |
| |
| ||
2. Is fuse blown ? |
| |
|
|
|
| No |
|
|
|
|
|
| |
Is operation lamp ON ? |
| |
|
|
|
| No |
|
|
|
|
|
| |
Indoor P.C.Board is defective. |
| |
|
|
|
(4) Check TIMER on the remote control unit.
1. Is timer turned ON ? | Yes |
2. Is ON displayed on remote control ? |
|
|
|
Replace the fuse.
Measure resistance of indoor and outdoor fan motor (FM) winding.
Measure resistance of compressor motor (CM) winding.
Cancel the timer mode.
46