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Errors


Boiler type Phoenix PH160-55

Error code F05

Cause:

Upper temperature sensor exceeds 194ºF.

Solution:

- If water in tank is not greater than 194ºF, 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.