Melted the nylon wheel and the 4 nylon screws on the feeder to a key stoker furnance. Looks like the fire maybe going up into the hopper after the stove has been running for alittle while. Put new motor,wheel, and screws in. Also cleaned under the burn grate and still seems to be going into the hopper. Any thoughts would help out here. Furnance is about 15yrs old.
Thank you.
Thank you.