nl en de
Select your language

Select country

Errors


Boiler type Pionier PHR 199-55C

Error code F05

Cause:

Upper (supply) temperature sensor exceeds 210ºF

Solution:

- If water in tank is not greater than 210oF, check wiring. Repair if faulty.
- If wiring is okay, check appropriate sensor with ohmmeter and compare to reading in resistance chart above. If reading does not agree with water temperature, replace bad sensor.