Vaillant gas boiler F.11: what it means and when to call a pro · Myanmar
Severity: Stop nowVaillant gas boiler error F.11. The return temperature sensor has a short circuit.
Meaning
The return temperature sensor has a short circuit.
Severity
Stop now
Stop. Switch it off and call a pro
Steps are not shown for this code because no qualified person has reviewed them yet. What is safe: switch it off and call a pro.
Source
Boiler fault codes list, Vaillant UK
The repair: Boiler temperature sensor replacement
Prices for repairs in Myanmar are in MMK.
Other Vaillant codes
- Vaillant F.20 The boiler overheated and the safety temperature limiter cut it out.
- Vaillant F.22 The water pressure in the heating system is too low.
- Vaillant F.23 The temperature difference between flow and return is too large, usually because water is not circulating well.
- Vaillant F.24 The boiler temperature is rising too fast, usually because water is not circulating well (air, closed valves or a pump problem).
- Vaillant F.25 The flue gas temperature is too high, or the flue or air supply is faulty or blocked.
Brands in our catalog for gas boiler: Ariston, Baxi, Bosch, Ferroli, Ideal, Potterton, Vaillant, Viessmann, Worcester Bosch. The same code on another brand is not in the catalog yet, and we do not guess what it means.