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wd45gto 01-21-2013 08:42 PM

low flame signal
 
my lennox model #c23-41wfc-1 wasnt working code flash showed burners failed to ignight.turned off power ,then on, it working now but showing low flame signal.what to do now?

JScotty 01-21-2013 09:10 PM

Quote:

Originally Posted by wd45gto (Post 1099050)
my lennox model #c23-41wfc-1 wasnt working code flash showed burners failed to ignight.turned off power ,then on, it working now but showing low flame signal.what to do now?

Your flame sensor needs to be cleaned. It's the metal rod on the opposite side of the burners as the ignitor. There should be just one screw holding it in. Remove the screw, pull out the flame sensor. Brush it with a wire brush or piece of steel wool. Put it back in. That should stop the low flame sense code.

Marty S. 01-22-2013 03:46 PM

Just a FYI the c23 number is the evap coil for the air conditioner. The furnace model number will be located on a sticker which you'll need to remove the doors to the furnace to see. Gas will start with a G and oil will start with an O in the model number. The answer is still the same though,clean the flame sensor. If the front of the burners have any rust those should be removed and also cleaned.

wd45gto 01-22-2013 06:57 PM

thank you both. working good now:thumbup:


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