Tempstar Model: PGF030K080E
Part No: 1170430
Furnace installed mid to late 2003.

My gas furnace was blowing cold air. So when I investigated,
everything else was working fine; except no flame and no gas.
The inducer fan came on. The blower came on. But the gas
didn't come one. The pilot device glowed. I used the handle of a screwdriver to softly tap a few times on the
gas valve and all of a sudden the gas came on. It ran a
little bit then shut off. I tapped it a few more times and
it came on and stayed on this time until we shut it off.
So to me it seems I need a new gas valve.
I suppose these things can't just be taken apart and cleaned
or serviced in anyway. ~$230.00 for a new one online.
I have a call into the HVAC guy to see what he says.
I am wondering what do y'all think about it.

SR

Just shut off the gas and the electric. Unplug the two sets
of wires. Remove the pilot tube. Undo the union connection
on the gas pipe coming into the furnace. Remove the gas pipe
coming into the valve. Remove the valve. Probably have
to remove several sub-assemblies to remove the valve. Get
a new valve. Put it all back together. Use gas tape on the
pipe connections into and out of the new valve. Use soapy
water to test for leaks. Turn the gas and electric back on.
What could be so hard about that. I have worked with gas before.

From what I've been reading online, a common problem with
these valves is some wiring connections break inside the
valve on the circuit board that controls the relays. The
connections just need to be soldered back together.
The symptoms for this problem are a lot like I described.
This would be worth looking into AFTER I install a new valve.

Pooh Bear

But it looks like the whole valve needs to be replaced.

This valve was really easy to remove.
The hardest part was getting the union joint to separate.
Putting it all back together will be simple.

Pooh Bear

Pooh Bear (aka Fluff For Brains)