(ECOi-Geräte)
1. Error Detection Method
2. Error Diagnosis
Note:
The work involved in diagnosing each of the items is extremely dangerous, so turn the power off at the breaker before performing the tests.
| 1 Check the power supply & the wiring |
1-1 | Is the voltage on each of the terminal boards within +10% of the rated voltage? | Yes | 1-4: Single-phase model 1-2: 3-phase model |
| No | Check for open circuit and the voltage at the breaker. if a problem is found, fix it and check again. | |||
| 1-2 | Power wiring N-phase is connected. | Yes | Correct wiring | |
| No | 1-3 | |||
| 1-3 | Power wiring L2 and N are reverse connected. | Yes | Correct wiring | |
| No | 1-4 | |||
| 1-4 | Turn the power back on and check again. Is the alarm triggered again? | Yes | 3-1: Single-phase model 2-1: 3-phase model |
|
| No | 2-3 | |||
| 2 Check the outdoor unit CR PC boar |
2-1 | The connector CN-PRY2 on the outdoor CR PC board is connected properly (locked). | Yes | 3-1 |
| No | Correct wiring | |||
| 3 Check the outdoor unit HIC PC board |
3-1 | Are the wires (RE1, RE2) from the reactor firmly installed? | Yes | 3-2 |
| No | Correct wiring | |||
| 3-2 | Turn the power back on and check again. Is the alarm triggered again? | Yes | Replace the outdoor unit HIC PC board. | |
| No | 4-1 | |||
| 4 Final check | 4-1 | There may be a instantaneous blackout failure. If there is nothing abnormal, see what happens. | ||
