Furnace Troubleshooting
Long story short, i hope. Suburban sf 35 f furnace problem just started a month back in middle of some cold weather. worked fine then one day just didn't start up again. turned thermostat up , n...
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Mine quit completely. i took it out and worked great after a good cleaning and when i connected it to a battery and propane on he bench. so. i may just buy another thermostat and see if that will work. i don't think its the board because it works when i connect the 2 controller wires. the limit switch checks out with the meter and the sail switch must work since it did not cut off power to unit because it ran and ignited for a good long time. ill give another thermostat a try and if it doesn't do the trick then i'll return it.
