Flaky Furnace Thermostat
I have a Suburban gas furnace in my 4-year old 5th-wheel. The thermostat name on the front panel is "RVComfort.HP". When heating on propane only (that is, not using the heat pump), four times in the p...
Forum Discussion
I replaced the thermostat with the same model, and the problem did NOT go away. Not a big surprise, but a necessary troubleshooting step.
On the iRV2 Forum, people were having a similar problem with a different model thermostat that they thought was caused by "noise" on the rig's ground line. Supposedly a "noisy" LED could cause the problem. Some put a filter on the ground line, but had limited success. In my case, when the t-stat jumps in the middle of the night, there are no lights on.
I expect that the 12-volts gets to the t-stat via the furnace itself. I wonder if some circuit in the furnace is messing with the 12-volts?
Doug,
I did all the steps you suggested except for "checking connections at AC control board". Assuming you are referring to the air conditioner, how does this relate to the furnace problem?
Sure could use some more ideas.
Thanks
On the iRV2 Forum, people were having a similar problem with a different model thermostat that they thought was caused by "noise" on the rig's ground line. Supposedly a "noisy" LED could cause the problem. Some put a filter on the ground line, but had limited success. In my case, when the t-stat jumps in the middle of the night, there are no lights on.
I expect that the 12-volts gets to the t-stat via the furnace itself. I wonder if some circuit in the furnace is messing with the 12-volts?
Doug,
I did all the steps you suggested except for "checking connections at AC control board". Assuming you are referring to the air conditioner, how does this relate to the furnace problem?
Sure could use some more ideas.
Thanks
