Mornin' Robert, Hi Frank, Your furnace parts list doesn't show any iginitor, spark or otherwise, so unsure what you have or if it is an add on part. That said, it would have to spark over to vicinity (close) of pilot burner to ignite the pilot gas coming out of pilot burner orifice. Then the flame s...

Robert et al, After my post yesterday, I pulled the ignition assembly, i.e., flame sensor, ignitor, pilot light housing etc., in order to clean everything. Being able to look at everything "up close," I'm assuming that spark the ignitor (electrode) jumps to the "housing of the pilot l...

Robert, et al, Winter's coming (feels like it's here): Last year I started a thread about my pilot not lighting on my Coleman furnace model # 8631-776. I've since got it working (last year) by adjusting the "flame sensor" & igniter." However, in thinking that this year I would eit...

Hi Robert, Coleman furnace model # 8631-776 has been taking longer and longer to light (last year we had the short cycle problem that you helped so much with); in checking the unit this afternoon, I could hear and physically see the spark; however, it took a long time to light; this evening it would...

Mornin' Robert, IT'S FIXED!!! HURRAY!! FYI: My problem began last year with "short cycles." The first thing we did was call the utility company and had them do a free inspection; part of this encompassed cleaning the gas nozzle out with a paperclip (I supplied). Although that didn't cure t...

Mornin' Robert, Our problem started out "and remains" short cycles. Initially,. I suspected the fan, and where we left off last year was me removing the fan, cleaning oiling and reinstalling; the fan seems to run more smoothly, and quietly; however, that didn't cure the problem; initially,...

Afternoon Robert,

Just a heads-up that I just fired the furnace up for the first time this season, and unfortunately it didn't magically fix itself. The short cycles are about 30 seconds now.

Tomorrow I'm going to proceed with your last instructions.

Thanks,
Frank

Robert Hi Frank, Can you determine if there is any type shield on inside of furnace over the fan switch ? IF there is a limit close by, does it have a shield over it ? Thanks, Robert Huh? What language is that? Kidding aside, we're in the middle of a storm . . . and the "access door" is ou...

Good Day Robert, Hi Robert, Hi Frank, Will get motor info in a few. Do you have heat only or heat and a/c ? may need shaft diameter and length and motor diameter and length as well as hp and rpm of motor. Can usually place 2X4 against shaft and tap motor loose. Best way and quickest though is go to ...

Hi Robert, Hi Frank, Will get motor info in a few. Do you have heat only or heat and a/c ? may need shaft diameter and length and motor diameter and length as well as hp and rpm of motor. Can usually place 2X4 against shaft and tap motor loose. Best way and quickest though is go to supply house and ...

Hi Robert, Hi Frank, 8631-776 is complete model number for future reference. Let me know if cleaning helps any. Thanks, Robert Still having problems pulling the motor off of the squirrel cage (it's frozen). Can you tell me the correct motor (and price) needed with that model no.? I haven't seen any ...

Afternoon Robert, Hi, Need complete model number and more detail of problem. Thanks, Robert OK . . . I have pulled the blower out; it's pretty funky; however, nothing smelled burn't, or like it overheated etc., I'm going to clean and oil the motor, and clean the fins on the fan itself, and see what ...

Mornin' Robert, Hi Frank, Does the motor feel hot when it shuts off ? Could be the motor going out, fan switch, control board for most likely. Thanks, Robert Personally, I was leaning towards the blower motor (I'll check and see if it gets hot); I still haven't gotten back there and got the exact mo...

Mornin' Robert, Hi, Need complete model number and more detail of problem. Thanks, Robert Hmmm . . . I thought that was the "exact" model number; I'll get that in short order; in the mean time I'll start from the beginning: Last winter is when we noticed the furnace would only run for shor...

Greeting Forumerions,

I'm experiencing a very short cycle ( a minute or so) on a Coleman # 8631 furnace.

Any assistance would be greatly appreciated.

Cheers,
Frank