Furnace Off and On
I own a 2000 30' Jayco Quest. My wife tried turning up the heat the other night and the furnace went through several cycles of turning on for 3 seconds and then immediately off. The blower and heat only stays on for a few seconds, then off. It repeats this every 30 seconds or so.
I removed the cover and used an air compressor to clean out the exhaust and furnace itself, however it did not fix the issue. I am now suspecting it may be the circuit board, or the thermostat perhaps? Does anyone have any suggestions or tricks to figuring out what the issue may be? I call a local repair shop, and he advised it would be $349 for a new circuit board. Any suggestions or help would be appreciated.