Gas and Oil Home Heating Furnaces - Gas Furnace Blower Not Working
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Arigoulot
05-13-06, 03:38 PM
I've got a gas furnace and it all kicks in, the pilot light turns on, and then I hear a clicking at which point the blower should turn on, but it's not. :wall: Last fall we had the same problem and the heating guy said it was because the pilot light sensor was dirty. Where is that and how do I clean it off? HELP! It's cold in Wisconsin.
mattison
05-14-06, 07:45 AM
So all you're getting is the pilot and no main burner ??
If so then you need to check for 24 volts at the gass valve when you hear this "click".
If so then you need to check for 24 volts at the gass valve when you hear this "click".
DaVeBoy
05-15-06, 05:36 PM
You probably have a pilot flame flame sensor as opposed to having a flame sensor in the main burner flame
*I* just worked on one of these. I had to not only clean the pilot flame sensor probe (people recommend steel wool as they claim emory cloth leads to re-failure...although I have never had that problem), but found the flame not hitting the flame sensor anymore. I had to remove the pilot assembly (very straight forward with limited unscrewing to do) and once out I took the end of the pilot apart (the burner end...not the gas valve end) and dumped out the orifice, and then used my orifice reaming tool kit using the appropriate size bit and removed a burr... then reassembled it and it worked perfectly. I had pilot flame now enveloping the flame sensor.
To see if you have such a problem, take one of those mechanics mirrors or any mirror or chunk of mirror (if you need to). See if the pilot flame envelops the sensor. If not, you have to probably poke something like a strand from a wire brush through the hole to clear out any rust scale or burr. Do not use a smal drill bit (or even a big needle) as even the 1/16 size is way to big.
*I* just worked on one of these. I had to not only clean the pilot flame sensor probe (people recommend steel wool as they claim emory cloth leads to re-failure...although I have never had that problem), but found the flame not hitting the flame sensor anymore. I had to remove the pilot assembly (very straight forward with limited unscrewing to do) and once out I took the end of the pilot apart (the burner end...not the gas valve end) and dumped out the orifice, and then used my orifice reaming tool kit using the appropriate size bit and removed a burr... then reassembled it and it worked perfectly. I had pilot flame now enveloping the flame sensor.
To see if you have such a problem, take one of those mechanics mirrors or any mirror or chunk of mirror (if you need to). See if the pilot flame envelops the sensor. If not, you have to probably poke something like a strand from a wire brush through the hole to clear out any rust scale or burr. Do not use a smal drill bit (or even a big needle) as even the 1/16 size is way to big.