The table below contains troubleshooting and fault repair instructions.
We recommend that the latest software version be always used. Check the latest version at http://www.vallox.com.
Error messages are displayed on the control panel and in the MyVallox Home and MyVallox Cloud services.
Table 77. Troubleshooting
| Fault | Cause | Proceed as follows: |
|---|---|---|
|
Error message: Extract air fan stopped |
The extract air fan has stopped. |
Make sure that the fan is not running. The fan cabling and operation must be checked, and if necessary the fan must be replaced. Contact the service centre. |
|
Error message: Supply air fan stopped |
The supply air fan has stopped. |
Make sure that the fan is not running. The fan cabling and operation must be checked, and if necessary the fan must be replaced. Contact the service centre. |
|
Error message: Temperature sensor 1/2/3/4/5 | The temperature sensor indicated on the user interface is damaged. |
The sensor installation must be checked, and if required the sensor must be replaced. Contact the service centre. |
|
Error message: Bus fault |
Problems with the data transfer bus. |
Make sure that the Modbus bus is connected correctly, and that the devices connected to it are properly functioning. |
| The ventilation unit is not working; the control panel is not working. |
Power input to the unit is lost or the safety switch catch of the door is not touching the safety switch. |
Check:
|
|
The ventilation unit is working, but the control panel is not working. |
Either the control panel 24 VDC power is lost, there is a problem with data transmission, or the control panel is damaged. |
|