We may have found other answers which could help you.
Success
Message
pressure switch?
water goes cold during shower?
gas neoon flashing?
no hot water and pressure valve is on red and water is leakiing outside?
no domestic hot water?
Fan light flashing?
burner going of after 2 or 3 minutes and on?
water sensor?
were do I get a diagram and information on airpressureswitch 105he?
what does F14 mean and F5?
charging system up?
max of 50 degrees hot water?