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  #1  
Old 03-16-2006, 11:35 PM
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Troubleshooting forced air furnace

Anyone know much about troubleshooting gas forced air furnaces with electronic ignition? I've got a Coleman furnace in a rental which quit working. I understand furnaces with a standing pilot but this has electronic ignition. It has a red light on the printed circuit control panel that is supposed to flash, giving codes, as to what the problem is. The red light is simply glowing but the furnace won't operate. I've jumped the thermostat wires and it makes no difference. Any suggestions as to where to go from here?

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  #2  
Old 03-16-2006, 11:39 PM
MedMech
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The first thing to do is clean the ignitor.

The link has Coleman service manuals.

http://www.mobilehomerepair.com/articlefurnace.htm
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  #3  
Old 03-16-2006, 11:40 PM
MedMech
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http://www.hvacmechanic.com/forums/resservice/thread_full.htm
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  #4  
Old 03-16-2006, 11:41 PM
MedMech
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http://www.colemanac.com/ProductFamily.asp?t=r&id=5
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  #5  
Old 03-17-2006, 12:00 AM
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Thanks. Good info on those sites. I'll get my multimeter and check the ignitor tomorrow and go from there.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #6  
Old 03-17-2006, 11:04 AM
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Posts: 18,355
That solution was simple. Turned the power off and back on. It regained consciousness and is operating fine.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #7  
Old 03-17-2006, 02:46 PM
nkowi
 
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Quote:
Originally Posted by kerry edwards
That solution was simple. Turned the power off and back on. It regained consciousness and is operating fine.
My kind of fix.

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