Water heater problem, need advice
Hi guys, Just got back from camping and had water heater issues. 1995 Bounder with Atwood water heater. Wouldn't fire, red light stayed on. Checked connections and thermostat lead broke off. Bo...
Forum Discussion
There are several options...
When the T-stat calls for heat the control board opens the gas valve and begins making sparks.. Around 1,000 volts of power on teh wire. After a few seconds of doing that it switches to heat sense and the thermocouple (Which may also be the spark "Prob" sends back just under 1/2 volt to the sensor chip.
Possible problems
Bad control not opening valve or not making sparks
Out of propane, bad reuglator, kink in line
Spark gap too wide (Actually fairly common) you can see and measure it without dissassembly so do so and comprare to owner's manual speciication.
Clogged gas jet (orifice)
Dirty flame sensor or bad flame sensor.
Bad connection flame sensor/ignition point to control board (kilo volt jumps it but half volt will not) (NOTE: you checked that alreday)
Bad control board not sensing voltage.
NOTE; that was in order of operation sequence,, I am not ipressed by the quality of construction on Atwood control boards, and Surburan uses the same boards.. I am seriously impressed by dinosaur boards.
You will need the AC/Propane adapter kit in all likelyhood, and do not forget covers.
When the T-stat calls for heat the control board opens the gas valve and begins making sparks.. Around 1,000 volts of power on teh wire. After a few seconds of doing that it switches to heat sense and the thermocouple (Which may also be the spark "Prob" sends back just under 1/2 volt to the sensor chip.
Possible problems
Bad control not opening valve or not making sparks
Out of propane, bad reuglator, kink in line
Spark gap too wide (Actually fairly common) you can see and measure it without dissassembly so do so and comprare to owner's manual speciication.
Clogged gas jet (orifice)
Dirty flame sensor or bad flame sensor.
Bad connection flame sensor/ignition point to control board (kilo volt jumps it but half volt will not) (NOTE: you checked that alreday)
Bad control board not sensing voltage.
NOTE; that was in order of operation sequence,, I am not ipressed by the quality of construction on Atwood control boards, and Surburan uses the same boards.. I am seriously impressed by dinosaur boards.
You will need the AC/Propane adapter kit in all likelyhood, and do not forget covers.
