Suburban water heater will not keep heating
I have a Suburban ten gallon water heater which is just over one year old. (It was a replacement). Suddenly, it quit working. I have replaced the gas valve unit, the high temp thermostat unit, and the...
Forum Discussion
Well instead of throwing parts at it.......
Didn't need gas valve, or thermostats or control board
Flame lights off but is not PROVING
Flame has to PROVE it lit or circuit board will drop DC to gas valve solenoid shutting it so raw gas doesn't flow
Flame PROVING is done via 'flame ionization' -----a milivolt signal is generated and sent back to circuit board via spark electrode
Spark electrode:
Has to be clean....emery cloth to remove soot/carbon
Has to be 'engulfed' in main flame....adjust position
Has to have clean/tight connection on high tension wire...plug off and clean/make sure it goes on tight
Has to be free of cracks in ceramic...check for ground tracking at night/in the dark...replace electrode if cracks
Didn't need gas valve, or thermostats or control board
Flame lights off but is not PROVING
Flame has to PROVE it lit or circuit board will drop DC to gas valve solenoid shutting it so raw gas doesn't flow
Flame PROVING is done via 'flame ionization' -----a milivolt signal is generated and sent back to circuit board via spark electrode
Spark electrode:
Has to be clean....emery cloth to remove soot/carbon
Has to be 'engulfed' in main flame....adjust position
Has to have clean/tight connection on high tension wire...plug off and clean/make sure it goes on tight
Has to be free of cracks in ceramic...check for ground tracking at night/in the dark...replace electrode if cracks
