afidel
Jun 26, 2019Explorer II
Suburban water heater won't get hot
Solved this one myself but figure I'd post here in case anyone else has a similar problem. If your Suburban water heater will light, stay fired, but won't get the water hot it's the thermostat. If running on propane check for +12-14V on the input of both the thermostat and the over temp relief switch, if they're both present but there's no voltage on the output side of the thermostat then it's dead. The thermostat is behind the reset panel and looks like this:
Check for voltage on the side with the spade connectors referenced to the case and then opposite that on connectors connected to the commoning rod. Btw there's a part of the startup sequence where there's no voltage on the input side so if you don't get a reading wait 15-30 seconds and try again.
Check for voltage on the side with the spade connectors referenced to the case and then opposite that on connectors connected to the commoning rod. Btw there's a part of the startup sequence where there's no voltage on the input side so if you don't get a reading wait 15-30 seconds and try again.