(ECOi-Geräte)
1. Error Detection Method
It is judged an error when a unit itself cannot receive (discrepancy) a signal within a 3-minute period that it had sent.
2. Error Diagnosis
| 1 Outdoor unit control PC board |
1-1 | Is the indoor/outdoor operation line connected to more than one outdoor unit? (Network wired?) | Yes | 1-2 | |
| No | 1-3 | ||||
| 1-2 | Is the SHORT on the terminal resistor switch on the outdoor main PC board set to one unit, and the others are OPEN? | Yes | 1-4 | ||
| No | Set the SHORT to one unit only | ||||
| 1-3 | Is the terminal resistor select switch on the outdoor main PC board set to OPEN? | Yes | Make the SHORT setting | ||
| No | 1-4 | ||||
| 1-4 | Is the indoor/outdoor operation line opened or shorted? | Yes | Correct the wiring | ||
| No | 1-5 | ||||
| 1-5 | Replace the outdoor unit main PC board. | ||||
