Whitfield ll-T Combustion Blower fails intermittently.

I have a Whitfield Advantage ll-T, pictures attached. The Combustion/Exhaust blower is not working properly, I get a lazy orange flame and slow pellet build up inside the burn grate.

Sometimes it works fine, sometimes blower fails to operate.

Unplugging and plugging the stove back in when the blower fails seems to get it running again but sometimes only for 30 seconds.

Blower works fine for days at a time so I'm thinking it must be some part of the controls?

I've tried thorough cleaning, under fire grate behind firebricks and replaced the low limit switch.

Made a rudimentary attempt at blowing the out the windings, was using a nail to push the valve in on a compressor hose.
It now comes on consistently but only seems to operate at 1/4th capacity. . .

I'm going to make another effort with a can of condensed air instead. Seems maybe I've killed the motor or it's a loose electrical connection.

What you said makes good sense, there was also some insulation pushed in up against the back of the blower motor which I have now removed.


I'm thinking I should order a new motor, or get someone more qualified than I am to check the electrical.

Cleaned it out with a compressor, is flowing well atm. I looked around for pots but all there is in there is a simple bar (I think it's called an integrated circuit or circuit board?) with all the wire relaying through it. I took the quick connects off one at a time and wiped them down, then sprayed with Contact cleaner.

Auger has failed somewhere along the way, I'll clean the pellets out and see if it's jammed. If that works and if the combustion fan keeps up the good work then this will be the last you hear from me.

Thanks a bunch for the help guys.

Attached are the wiring diagram and circuit board.