nl en de
Select your language

Select country

Errors


Boiler type 399M

Error code F01

Cause:

Vent Temperature Limit Exceeded.

Solution:

- Push the red reset button on the switch.
- Check the flue temperature during operation using a combustion analyzer.
- Replace the vent limit switch if faulty.
- Verify the combustion drain if clear and draining properly.
- Visually inspect the target wall to see if it is intact. If not intact replace target wall.