Coleman M# 7975-856 quit running

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Old 02-21-08, 09:32 AM
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Coleman M# 7975-856 quit running

For the last couple days, the pilot was going out on my furnace, it is about 22 yrs old, in a mobile home, although some of it i was attributing to the winds. Well this morning i got up freezing because the pilot had gone out during the night. I went to relight it, got ready and brought son to school, came home to find it was out again. Thank goodness for wood heat for now. But i was nosing around, replaced the thermocoupler because the one that was there was burnt looking. The pilot now has been staying on but now the burner won't liught to start the heating process. It has done a lot of clicking this winter but still worked fine. This morning now it won't even click, although i can hear the current fromt he thermostat tellingi t to run. I have checked to make sure all gas fittings are not leaking, tried resetting the electrical by turnign off furnace, thermostat, even circuit breaker and different combo's there of. there is only a single reset for the furnace, and it has not tripped, checked that even by bypassing it, and still nothing. Can someone please help me.

getting cold in new mexico
 
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Old 02-21-08, 10:18 AM
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Wink

Is the valve turned to on ?? After you lit the pilot?? Do you have a meter to check if you get 24V at the gas valve????
 
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Old 02-21-08, 10:54 AM
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the gas is turned on....and i will check real quick about the 24 volt....

....ahhh, there is the problem, now i need to get a new transformner i guess, thank you very much, i will see if tat works!!!

tytytytytyty
 
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Old 02-21-08, 12:29 PM
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ok, got the transformer working, and still nothing, although i figured that would have been about all, so i checked o ut the thermostat, and that had a burnt wire on it, so i replaced that and it works now, tyvm for all your help!!
 
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