Has anyone had this problem. Our furnace continues to runs. We have the temp. set to 70 deg. and come home to the house temp. at 85 deg.
We have tried different thermostats but every one has failed. It seems to be ok for 4-5 months then it fails. We re-adjust and then it doesn't start and is below 50 deg. We finally get it to run correctly for a few months then it fails again. We now feel it may be in the furnace. Have any ideas? Janitrol Furnace installed in 1998