Heater won't kick on

I'm gonna guess it's a thermocouple, you can get them at Home Depot etc, but I don't know much about forced air, just gas and oil furnaces

Good luck Clark...

rwalley;

either the gas valve or the control board isn't telling the gas valve to open.

Call your local HVAC repair guy to come back out, and repair it. Tell 'em your cold and he was just there less than 30 days ago. At the very least, he should discount the visit.

what is the make/model/year of the furnace? is there any LED's flashing on the control board? do you have the manual for the furnace?

Zyp

Best response. Thanks. I put a can of air to the circuits and turned on and off the gas, It is working today. We'll see.

Now that you've inflated the circuit board to 35 PSI, lets hope it stays fixed.

If that's the gas valve opening when it clicks, seems that it should ignite. The glow is good, that's likely to be the hot surface ignitor.

OK, dumb idea I guess. But I thought it just may have been dust.

Still not work> Now that you've inflated the circuit board to 35 PSI, lets hope it stays > fixed.

did you try testing the themocouple? worst case you spend $20.00 at the hardware store.

with a gas boiler it has been the fix every time except when the pigtail is clogged. Try this link too.