Lennox Oil Furnace Not Blowing Air

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Old 11-10-12, 03:42 PM
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Lennox Oil Furnace Not Blowing Air

Hi all, I have a Lennox Elite oil furnace that stopped working overnight. Model # 023Q3-105-/120-2A. The furnace fires up fine, as I can feel heat coming off of it, but after about a minute or so it shuts off. The blower doesn't come on and it shuts off when I think the blower should come on. I hope that's enough to get started. Thanks in advance!
 
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Old 11-10-12, 04:47 PM
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Your burner fires up....runs about a minute and then shuts off. Does it keep repeating that sequence ? Do you have a fan on position on your thermostat ? If you do- try it and see if blower works ok. We need to determine if the blower itself has a problem or is it the blower thermostat/hi heat switch in unit.
 
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Old 11-10-12, 06:47 PM
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Yes, it keeps repeating that sequence. Won't turn on in the fan on position. Thanks for the response!
 
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Old 11-10-12, 06:59 PM
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Then it appears that your blower motor may be faulty. Do you have a voltmeter ? Did you want to check further ?
 
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Old 11-11-12, 08:33 AM
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Going to check with voltmeter in a bit. Will post results later. Thanks!
 
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Old 11-12-12, 08:34 PM
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In my experience with the lennox oil furnace I'm betting the fan board is gone.
If there is power to the motor then the motor is bad. If not then the board is likely
done. You can jumper the fan from the board to see, but without seeing the wiring diagram I cqnt remember what wires you need to work with
 
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Old 11-13-12, 04:54 PM
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That's exactly it, the fan board! Called a pro in, got the diagnosis and the board is being shipped. Thanks for all your help.
 
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Old 11-13-12, 05:48 PM
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Always like to hear good news
 
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