Suburban Furnace
We have a suburban NT 24M furnace, the board is sporadic as it will ignite the burner the odd time and then nothing. We have been told this board is no longer available either as an OEM board or a din...
Forum Discussion
Hemi RT wrote:turbojimmy wrote:
I would check the thermostat before you dig into the furnace. I had an intermittent no-start problem with mine (1984 vintage) and it was the thermostat. I replaced it with a new Suburban unit and the furnace has been fine.
Not the thermostat, gas valve doesn't always open & when it does it ignites but won't stay lite, the electrodes are new & gapped properly
Mine would light pretty much every time when you first turn it on. It would reach the set temp and shut off. When the temp dropped again, the fan would fire up but the burner would only light about half the time. Sometimes it would work fine all night, other times I'd wake up freezing cold and have to shut the Tstat off and on several times to snap it back into reality. Eventually even that stopped working. New Tstat fixed it. YMMV.
