(ECOi-Geräte)
1. Error Detection Method
It is judged an error based on the criteria listed below.
2. Error Diagnosis
| 1 Sensor |
1-1 | Sensor Sensor connector is connected to control PC board properly. | Yes | 1-2 |
|
No |
Reconnect and check | |||
| 1-2 | Is sensor resistance value in normal? Disconnect the connector and measure the resistance value between each wire of sensor. Correct reference values: between 1-2: 8.5 k ohm, 1-3: 1.0 k ohm, 2-3: 8.5k ohm | Yes | 2-1 | |
| No | Replace sensor | |||
| 2 Operating status |
2-1 | Replace PC board because of outdoor control PC board failure. | Yes | Correct |
| No | 2-2 | |||
| 2-2 | Tends to have insufficient refrigerant charge in the system. | Yes | Adjust the amount of refrigerant | |
| No | 2-2 | |||
| 2-3 | Are the tubes clogged? | Yes | Avoid clogging | |
| No | 3-1 | |||
| 3 Control PC board |
3-1 | The difference between the value of actual high pressure and that of detect pressure will roughly indicate as shown below.![]()
|
Yes | Replace sensor |
| No | Replace control PC board |