I've got a weird one...the furnace in my low-mileage 2005 sprinter only
comes on immediately after I click the igniter on the propane cook-top. Gas doesn't even have to be flowing into the cook-top burners for the furnace to fire up...the igniter just has to click a couple times. The fuses, battery, and other electronics are all good. I live in the Northwest where it's humid.
Can I simply replace the thermostat with a new 12v
unit, or does this symptom suggest an underlying electrical problem?