We have a Carrier Weather Maker 8000 Natural Gas Furnace not functioning properly. We have replaced pressure switch, hot surface ignitor, flame sensor and control board. It will cycle 3 to 4 times and then not come back on. Is it possibly a bad coil on gas valve?:rolleyes:

I'm told nothing is wrong with the unit. It was billed as a very quiet machine however it is so lowd it disrupts my living area. The intake vent is right between dinning room and living room. Have to speak up if it come on - TV volume has to go up because the humming motor sound is so loud. In...

I have a Carrier gas furnace weather maker, model 9200. When I turn the thermostat to heat, the induce drap blower is not coming on, but instead the ac and the main blower is on. When I check the power that is coming out of the PC board for the induce drap blower, I get 2 Volt.

I have just replaced my thermostat and now furnace blows cool air (fan on constantly), even with thermostat control in off setting. Followed all install directions w/ new thermostat To the letter. Is this a limit switch malfunction or what?

Sometimes when my heat kicks on it makes a loud fiery sound like its flame is booming. Hard to explain. Anyone know what I might be referring to?