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