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Hello,My name is ***** ***** I will do my best to assist you. I am looking over your question now and will respond shortly.
was this were you cleaned the sensor rod with steel wool?
if so.....this time you would need to use a vacuum attachment and clean out the burners and tap them sharply to get any rust out....sounds like the issue is flame getting to the rod in time...
I am going offline but will be back online in aprox 30 minutes.
DO YOU GET FLAME FOR 3 SECONDS
during the ignitor glow...watch and see if flame lights all across..it must hit that metal rod in 3 seconds
ok put rod so it is in front of the burner...
do you still get the same code with light blinking?
was the last couple days the first time furnace has run this season?
ok....do you know what the gas valve is?...the gas pipe comes into the side of the furnace and then goes into a blocky looking gas valve and then pipe comes out other side and goes to burner...
correct...hold your hand on that...start furnace...then tell me if you feel that valve click within 60 seconds
I see you said it was 3 blinks now?
So the exhaust fan starts....then stops after 20-30 seconds?
do you still have the pics available so I can point out some other items for you?
the vent pipe that carries the exhaust outside...is it plastic pipe out the side of the house?
do you have a shop vacuum?
if you have time I want to do another test first...
ok see this pic
remove the 2 wires...
get a small nail that fits into the little connector on the end of the wire.
Hold the 2 wires apart
as soon as the exhaust fan starts connect the 2 wires by sticking the ends of the nail, staple or paperclip into the ends of the wires thus connecting them.
We do this AFTER the exhaust starts.
Tell me what happens after this test
standing by....you are certainly getting heating 101 the last couple days..
ok take wires apart and I will bring you up to speed..
This means there is:
Air restriction in the vent pipe..nest, toy etc..
Drain line from furnace plugged. You will see a drain come out of the furnace and go to a drain or pump..
Use the shop vacuum to clear the plastic pipe...and to suck the drain line clear.
The air circulates through the furnace when that fan kicks on...anything that impedes the flow affects the pressure switch, burners etc.
So now we know the flame sensor is clean...now we clean out the vent pipe and drain...
This is good news...just a pain..
sounds like the furnace sat dormant for a while....
yes...these are basic things that happen when a furnace sits for extended periods unused....especially the vent pipe being obstructed as it is a perfect spot for bird or rodent nest....they leave when the furnace starts but the nest remains..
I am confident once you have these things cleared you will be ok.
certainly....just do not respond to this message...or the system forces a response from me...just hold this until tomorrow after you find out how it goes...