Troubleshooting
The table below contains troubleshooting and fault repair instructions.
Important:
We recommend that the latest software version be always used. Check the latest version at http://www.vallox.com.
Note:
Error messages are displayed on the control panel and in the MyVallox Home and MyVallox Cloud services.
Fault | Cause | Proceed as follows: |
---|---|---|
Error message: Extract air fan |
The extract air fan has stopped. | Make sure that the fan is not running. The fan cabling and operation must be checked and, where required, the fan must be replaced. Contact the service centre. |
Error message: Supply air fan |
The supply air fan has stopped. | Make sure that the fan is not running. The fan cabling and operation must be checked and, where required, 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 has become damaged. | The sensor installation must be checked and, where required, the sensor must be replaced. Contact the service centre. |
Error message: High supply air temperature |
The supply air temperature is too high. | The operation of the post and additional heating resistor must be checked. Ensure that the resistors are turned on in the user interface. Contact the service centre if necessary. |
Error message: Low supply air temperature |
The supply air temperature is too low. | The operation of the post and additional heating resistor must be checked. Ensure that the resistors are turned on in the user interface. Contact the service centre if necessary. |
Error message: Bus fault |
Problems with the data transfer bus. | Ensure that the control panel and any external sensors are connected correctly and are functioning properly. |
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:
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The ventilation unit is working, but the control panel is not. | Either the control panel 24 VDC power is lost, there is a problem with data transmission, or the control panel has become damaged. |
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