Part 4 Trouble Shooting
6. Electronic
Parts
Troubleshooting
Guide
Trouble 1 | The Product doesn’t operate at all. (9~30kBtu/h Model) |
Turn off the main power and wait until LED on outdoor PCB is off.
Turn on the main power again.
"Beeping" sound is from the indoor unit?
Flashing LED mounted on the outdoor PCB?
NO
Check the voltage of power(AC 208~230V, 60Hz).
•The voltage of main power.
•The voltage applied to the unit.
•The connecting method of Indoor/Outdoor connecting cable (each color)
•The PCB Ass'y
(Fuse,Noise Filter, Power Module(SMPS), IC01D,IC04D)
YES
•Primarily, the operating condi- tion of Micom is O.K.
•Check
The operation check of the P.C.B. Ass'y
| Procedure | Specification | Remedy |
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1) | The input voltage of Power | : DC 220V~390V |
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| Module(SMPS) |
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2) | The output voltage of Power | : 15V ±10% | Replace the P.C.B. |
| |||
| Module (SMPS) |
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3) | IC01D(LD1085), IC04D(7805) | : DC 5V |
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- 40 -
Only for training and service purposes
