Originally Posted by daveandcarol
Have an older (98) PA. The other evening I was walking the dog behind the coach when I heard something odd. The rear furnace was running even though the thermostat switch was turned off. Working the switch didn't shut it off. Turning on the air conditioner made them both run at the same time. Turning off the AC and dropping the thermostat down to 55 degrees shut off the furnace.
While checking the Intellitec control box (under the refrigerator) I heard a sporadic clicking or buzzing sound from either that or another adjacent box (not sure what that one is yet). Consulting diagrams I had from Fleetwood didn't help. Finally unplugged the 'rear heat' plug from the Intellitec and that stopped the furnace. However, the sporadic buzzing remains. Any suggestions?
had somewhat similar noise on my 99 PA (control box over the fridge) turned out was a loose hot wire connection in a wire nut. my rear furnace would also run without being turned on, found the problem to be a small leak in the shower stall (heater was under the stall) that was getting the control board wet. hope this helps.
2009 Fleetwood PaceArrow 38P 8.1 on W24 chassis, 1990 Goldwing 1500, 2010 Jeep Liberty, RVM#197, FMCA#F413587, FMA#7985, WCMC, 2 dogs, 1 wife