Ray LeTourneau
Senior Member - Past Moderator
This started yesterday. Returned home to a chilly 5th wheel. Blown fuse for the furnace in the panel, reefer off and LP detector humming. Replaced the fuse and everything seemed OK. Woke up this AM to chilly house. Fuse OK so I turned t'stat off and back on and furnace ran OK. Now the furnace won't kick in again and turning off the t'stat and back on has no effect. I can hear a "click" up in the AC when I turn off the t'stat and when I turn it back on I hear the t'stat click but no furnace start up. It's been working fine since t'stat installed a long time ago. The battery indicator is not on and the display appears fine. Ideas?