Atwood Water Heater Questions
What would cause the pressure relief valve to have a slow leak even after it was bleed off ? The unit will not fire on LP only works on electric. Could it be the thermostat? Would these issues be rela...
Forum Discussion
Unrelated. The pressure relief valve is designed to open should a set pressure (temperature) be reached. A lot of folks use them as an air port to drain the heater or muck with them to recreate the interior air reserve. I never touch them as I've experienced failures by opening them. Sometimes, an O-ring will become unseated or tear when the valve is opened. Sometimes, accumulated mineral build-up will limit proper seating for closing.
Your LP igniting issues are related to the part of the heater that uses LP and is in the ignition sequence---orifice on gas tube, cleanliness of air tube, condition of ignitor, etc. You may also have a failed gas valve but that should be the last in a chain of diagnosis. Clean everything up in the LP firing area and see if you have success. There are a few threads on this Forum that deal with water heater repair and service manuals are available here:Bryant Service
Your LP igniting issues are related to the part of the heater that uses LP and is in the ignition sequence---orifice on gas tube, cleanliness of air tube, condition of ignitor, etc. You may also have a failed gas valve but that should be the last in a chain of diagnosis. Clean everything up in the LP firing area and see if you have success. There are a few threads on this Forum that deal with water heater repair and service manuals are available here:Bryant Service
