What to do if my Vaillant Control Systems display shows an F boiler fault code?
If your Vaillant Control Systems display shows a boiler fault (indicated by 'F.' followed by a fault code), first, try resetting the boiler by selecting 'Reset' and then 'Yes' on the display. If the fault message continues to appear after the reset, it is recommended to contact a qualified technician for assistance.
How to fix a dark display on Vaillant sensoCOMFORT VRC 720/3 Control Systems?
If the Vaillant Control Systems display remains dark, there could be several reasons. It might be due to a software error, which can be resolved by pressing and holding the button on the top right of the system control for longer than five seconds to force a restart, or by switching the mains switch on the heat generator off and back on again. Another cause could be a lack of power supply to the heat generator; ensure the power supply is re-established. If these steps don't work, the product may be defective and need replacement.
What to do if I can't make changes on my Vaillant Control Systems display?
If you cannot make changes on the Vaillant Control Systems display via the control elements, it might be due to a software error. Try resolving this by switching the mains switch on the heat generator that feeds the control off and then back on again. If the issue persists, the product may be defective and require replacement.
How to deactivate the button lock on Vaillant sensoCOMFORT VRC 720/3 Control Systems?
If your Vaillant Control Systems display shows 'Button lock activated,' preventing you from changing settings, press the button on the top right of the system control for approximately one second to deactivate the button lock.
General| Mounting | Wall-mounted |
|---|---|
| Control Type | Digital |
| Protection Class | IP20 |
| Compatibility | Vaillant heating systems |
| Display | LCD |
| Connectivity | Wireless |
| Functions | Temperature control |
| Power Supply | Battery |
| Power Consumption | Low |
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