Hello all I just built a plenum around my coal stove and I need to wire in a stat , limit switch to run a blower fan . Thanks Steve PS I have all the parts off and hot air oil furnace.

I have a 1997 or 98 Coleman Natural Gas Furnace with A/C. The blower works fine during the winter when I use heat. When I use the A/C, it seems that once the blower starts working for a bit on a hot day, it evetually (if on for more than 10 minutes at a time or so) starts kicking on and off while...

This winter the furnace control board in my Lennox Gas Furnace / AC unit failed and I had it replaced by a contractor. The contractor mis-wired the thermostat inputs to the board. He wired the Green (fan) wire to the C (compressor connection) board input and the C wire to the Green (fan) board...

Yesterday I turned on my heat(coil in air handler) and everything worked fine. Last night I turned it on again and the fan wouldn't come on no matter where the switch was: fan only, heat or air. I made the appropriate temp changes for heat/air. There is a humming noise coming from the heating coil...

A couple of weeks ago my Lennox G20Q3E-75-1 was acting up. Gas valve was cycling when calling for heat and then once satisfied and the main burners went out the pilot light was staying lit. I thought it might be the flame sensor as far as the gas valve cycling and didn't want to tear into it so I...