Alarm conditions:
1A - Open circuit in supply air temperature circuit,
2A - Short circuit in supply air temperature circuit,
3A - Open circuit in extract air temperature circuit,
4A - Short circuit in extract air temperature circuit,
5A - Open circuit in outdoor air temperature circuit,
6A - Short circuit in outdoor air temperature circuit,
7A - Open circuit in exhaust air temperature circuit,
8A - Short circuit in exhaust air temperature circuit,
9A - Open circuit in return water temperature circuit,
10A - Short circuit in return water temperature circuit.
Possible causes:
- Supply air sensor is not connected to the controller (only for 1A/2A faults),
- Return water temperature sensor is not connected to the controller (only for 9A/10A faults),
- Sensor failure,
- Damaged wiring,
- Main controller failure.
Troubleshooting
Pic 1. Supply temperature sensor connection to C5 controller | Pic 2.Temperature sensor characteristics |
Pic 3. Temperature sensor characteristics
|
|
Pic 4. Supply temperature sensor connection to C5 controller | Pic 5.Temperature sensor characteristics |
Komfovent service is available by contact form or LiveChat.