Furnace won't ignite

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  #1  
Old 11-18-00, 07:48 PM
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I have a Keeprite high efficiency furnace, it is approx 4 1/2 years old. The furnace will come on (humming noise) but the pilot light won't ignite (no heat). It has an electronic ignition module. The furnace had been working fine up until today. Any suggestions ?

Thanks
Paul
 
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  #2  
Old 11-18-00, 07:56 PM
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Paul,
Do you know if it has a glow coil ignition or a spark ignition.
It is only humming. Is there a small draft motor in there that is not running. Maybe you have a bird in the draft motor.
On a call for heat most of these furnaces close heating relay, this relay turns on a draft motor, the pressure switch proves the chimney is clear and the pressures are correct, then you get ignition.
Good Luck
Mr Foster
 
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Old 11-18-00, 08:21 PM
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The furnace has a gas valve/electronic ignition module. This module sends a signal which ignites the gas as the gas valve opens to let the gas flow to the main burners. There is a pressure switch to shut down the unit under various flue conditions (the manual does not elaborate on what those conditions might be).The furnace vent pipe comes out the side of the house, approx 3 feet up from the ground. I had placed a piece of chicken wire over the opening to prevent anything from getting in. I will go outside and check this in the daylight. Any further feedback would be appreciated.

Thanks
Paul
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Mr Foster:
Paul,
Do you know if it has a glow coil ignition or a spark ignition.
It is only humming. Is there a small draft motor in there that is not running. Maybe you have a bird in the draft motor.
On a call for heat most of these furnaces close heating relay, this relay turns on a draft motor, the pressure switch proves the chimney is clear and the pressures are correct, then you get ignition.
Good Luck
Mr Foster
<HR></BLOCKQUOTE>

 
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