What causes fault code F2 on a Viessmann Vitodens 111-W and how to fix it?
Fault code F2 on your Viessmann Boiler indicates that the temperature limiter has responded. You should check the heating system fill level, check the circulation pump and vent the system. Also, check the temperature limiter and connecting cables. You can also try pressing 'Reset'.
How do I troubleshoot Viessmann Vitodens 111-W fault code F9?
If your Viessmann Boiler shows fault code F9, it means the fan speed is too low during burner start. Check the fan, fan connecting cables, and power supply, and also check the fan control. You can also try pressing 'Reset'.
What does fault code FF mean on Viessmann Vitodens 111-W?
Fault code FF on a Viessmann Boiler indicates a fault in the burner control unit. Check the ignition electrodes and connecting cables and check for a strong interference (EMC) field near the appliance. You can also try pressing 'Reset'. If the fault persists, replace the control unit.
What should I do if my Viessmann Vitodens 111-W Boiler displays fault code Fd?
If your Viessmann Boiler displays fault code Fd, it indicates a fault in the burner control unit. Check the ignition electrodes and connecting cables. Check whether a strong interference (EMC) field exists near the appliance. You can also try pressing 'Reset'. If the fault persists, replace the control unit.
Why is my Viessmann Vitodens 111-W Boiler showing fault code E3?
If your Viessmann Boiler is displaying fault code E3, it indicates a fault in the safety chain. Check the temperature limiter and connecting cables. Also, check the control unit, and replace it if required.
What does fault code FA on my Viessmann Boiler mean?
If your Viessmann Boiler displays fault code FA, it indicates that the fan idle state has not been reached. Check the fan, fan connecting cables, and fan control. You can also try pressing 'Reset'.
How to resolve Viessmann Vitodens 111-W Boiler fault code FC?
If your Viessmann Boiler is showing fault code FC, it means there is a fault with the electrical fan control (control unit). Check the fan connecting cable and replace it if required, or replace the control unit.
What to do if Viessmann Vitodens 111-W Boiler displays fault code F4?
If your Viessmann Boiler displays fault code F4 and no flame signal is detected, you should check the ionisation electrode and connecting cables, the gas pressure, the gas train, ignition and condensate drain. You can also try pressing 'Reset'.
What to do if Viessmann Vitodens 111-W Boiler shows fault code F3?
If your Viessmann Boiler shows fault code F3, it means a flame signal is already present at burner start. Check the ionisation electrode and connecting cable. You can also try pressing 'Reset'.
What does fault code A9 mean on a Viessmann Vitodens 111-W?
If your Viessmann Boiler displays fault code A9, it indicates a communication error with the OpenTherm device. Check the connections and lead; replace the OpenTherm device if required.
General| Type | Gas Condensing Boiler |
|---|---|
| Dimensions | 900 x 600 x 480 mm |
| Energy Efficiency Class | A |
| Mounting | Wall-mounted |
| Water Pressure | Max. 3 bar |
| Max. Flow Temperature | 80 °C |
| Efficiency | Up to 98% |
| Hot Water Storage | 46 liters |
| Fuel Type | Natural gas or LPG |
| DHW Output | Up to 200 liters in 10 minutes (depending on model and cold water temperature) |
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