Pilot lights up but the furnace won't burn on armstrong ultra sx80

crosby2010 Posts: 1, Reputation: 1

New Member

Oct 17, 2010, 01:36 PM

Pilot lights up but the furnace won't burn on armstrong ultra sx80

pready Posts: 3,197, Reputation: 207

Ultra Member

Oct 17, 2010, 02:25 PM

Check your sensor because I had a similar problem and once the sensor was replaced the problem was fixed.

Add your answer here.

Check out some similar questions!

Armstrong Ultra Sx80 A/C burns the transformer [ 2 Answers ]

Tried to run AC for the first time this season (Furnace works fine). After looking around, the transformer was definitely burnt. Bought a new one, swapped it out (after carefully re-connecting the proper wires), and the AC worked. About a day later, transformer burned out again. Bought a new...

Armstrong Ultra SX80 not turning on by iteslf! Circuit Board? [ 1 Answers ]

This all started about a week ago. One night we woke up to a very cold house. The furnace hadn't kicked on at all during the night. It's an Armstrong ultra sx80. It has the automatic ignition. When I went to check on it, I took off the panels and vaccuumed it out and noticed that when I ran the...

Armstrong Ultra SX80 Heat Exchanger Failure [ 7 Answers ]

I recently experienced a series of small explosions while my furnace was operating. After extensive troubleshooting, I discovered the rollout switch was tripped, after I reset it, I watched the furnace startup properly, but as soon as the blower came on, it had extensive blowback tripping the...

Armstrong ultra sx 80 furnace no pilot light [ 3 Answers ]

We've had a problem the last 2 winters with our furnace, always fixed but last night the furnace stopped working. We checked and there was no pilot light. Actually in this model we don't even know where we would light it. Someone told me it might be the thermo couple but I am in need of another...

Armstrong Ultra sx 80, pilot light lit, but heater doesn't turn on [ 4 Answers ]

We have a propane heater. We have propane in the tank. There is air blowing through the vents, but there is no heat. Usually, there is a clicking sound in the thermostat, a whumph sound in the heater and the heat comes on. Now there is no clicking sound and no whumph. Consequently, no heat. ...