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Old 03-24-2006, 07:48 AM  
big b
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Default furnace not lighting

woke up this morning to find temperature at 16 degrees so i checked the furnace and found it not lit. it has an automatic ignition system so i raised the temp to get it to kick in but nothing happened. i have had the ignitor replaced twice in the past year and a half. anybody have any suggestion as to what i should do or look at next. when i raise temperature it makes a humming sound but no clicking sound like its trying to ignite. i followed the steps outlined a couple of threads ago but still nothing. it is a Coleman t.h.e. 90 furnace. read about these flashing lights for fault code on furnaces but couldnt find any.

thanx



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Old 03-24-2006, 10:36 PM  
Aceinstaller
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call a technician to service.

if they tell you that the ignitor needs replacing, ask them to sell you a nitride ignitor, and it will last ten times longer but is more expensive.



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Old 03-26-2006, 10:12 PM  
Total Home Care
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90% furnace just humming it sounds like the induce draft fan motor is not comming on.... it has to start befor the ignition process starts...Good luck

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Old 04-04-2006, 11:07 PM  
milehigh_woodcrafter
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call a qualified tech before your house blows up.

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Old 04-15-2006, 10:37 PM  
Aceinstaller
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lol.............



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