The original Duo Therm furnace
on my 1980 Trillium
4500 has worked well for many years. This weekend was my first time out this year
with the trailer, and it was pretty chilly. I could light
the pilot on the furnace
, and turn the knob to 'on' but the furnace
would not turn on when the thermostat was turned up and 'clicked' on. The trailer is stored inside so I dont think its an insect issue. These furnaces seem pretty simple, anyone have an idea how to diagnose or what to check? Thanks!