|
|
|
|
|
|
| FILE NO. |
|
|
|
|
|
|
| |
Block distinction |
| Operation of diagnosis function |
|
|
| ||
|
|
|
|
|
|
|
|
Check |
| Check |
| Air | Display |
| Action and Judgment |
Block | Cause of operation | conditioner |
| ||||
code | code | flashing error |
|
| |||
|
| status |
|
| |||
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
| Compressor does not rotate. | All OFF | Flashes after | 1. | Remove connecting lead wire of the |
|
|
| Because of missed wiring, |
| error is detected |
| compressor, and operate again. |
|
|
| missed phase or shortage. |
| 4 times*. | 2. | If outdoor fan does not operate or |
|
|
|
|
|
|
| operation but stop after some period, |
|
|
|
|
|
|
| replace the inverter P.C. board. |
|
|
|
|
|
| 3. | If outdoor fan operates normally, |
|
|
|
|
|
|
| measure |
|
|
|
|
|
|
| P.C. board |
|
|
|
|
|
|
| connecting lead wire of compressor. |
|
|
|
|
|
| 4. | If |
|
|
|
|
|
|
| inverter P.C.Board. |
|
|
|
|
|
| 5. | If |
|
|
|
|
|
|
| resistance of compressor winding. |
|
|
|
|
|
| 6. | If winding is shortage, replace the |
|
|
|
|
|
|
| compressor. |
|
|
|
|
|
|
|
|
|
|
| Discharge temperature | All OFF | Flashes after | 1. | Check sensors TD. |
|
|
| exceeded 117oC. |
| error is detected | 2. | Check refrigerant amount. |
|
|
|
|
| 4 times*. | 3. | Check P.M.V. by measure the |
|
|
|
|
|
|
| resistance of the coil and confirm its |
|
|
|
|
|
|
| operation (sound of initial |
|
|
|
|
|
|
| operation, etc.) |
|
|
|
|
|
| 4. | Observe any possibility cause which |
|
|
|
|
|
|
| may affect high temperature of |
|
|
|
|
|
|
| compressor. |
|
|
|
|
|
|
|
|
|
|
| Compressor is high current | All OFF | Flashes after | 1. | Check installation conditions such as |
|
|
| though operation Hz is |
| error is detected |
| packed valve opening, refrigerant |
|
|
| decreased to minimum limit. |
| 4 times*. |
| amount and power supply (rate +10%, |
|
|
| Installation problem. |
|
|
| both of operation and non operation |
|
|
| Instantaneous power |
|
|
| condition). |
|
|
| failure. |
|
| 2. | Check P.M.V. by measure the |
|
|
| Refrigeration cycle |
|
|
| resistance of the coil and confirm its |
|
|
| problem. |
|
|
| operation (sound of initial |
|
|
| Compressor break down. |
|
|
| operation, etc.) |
|
|
|
|
|
| 3. | Observe any possibility cause which |
|
|
|
|
|
|
| may affect high current of compressor. |
|
|
|
|
|
| 4. | If 1, 2 and 3 are normal, replace |
|
|
|
|
|
|
| compressor. |
|
|
|
|
|
|
|
|
* 4 times ; When first error is detected, error is count as 1 time, then once operation is stop and
After
– 75 –