My oil furnace blower will not come on


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Old 11-05-10, 06:31 PM
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My oil furnace blower will not come on

It is fairly an old oil furnace and we had recently run out of fuel. When I turn up the thermostat to get the heat to come on, it will click on and run. However it then shuts off and the blower never comes on. If I try to turn up the heat a little in a few minutes, the furnace will not even click on. Any advice would be deeply appreciated. Laid off worker and very little money. Thanks
 
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Old 11-05-10, 06:46 PM
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Since the blower never comes on, the fire inside made the furnace get super hot and cause it to limit, so it will not restart probably without sufficiently cooling back down, and you possibly having to reset it by turning it off, then back on.

Find out if you are getting 120 volts to the blower. Find out if blower is seized by trying to spin the blower wheel(with the power turned off). Do you hear any noise, like a hum, come from the blower, when it should be running?
 
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Old 11-05-10, 07:37 PM
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When you say turn it off and then turn it back on again, are you meaning the thermostat all the way down. I have done that every time the blower does not come on. There is no humming noise coming from the blower. For example, if I were to go and turn up the thermostat now, lets say to 70, the furnace would kick on. Run for a 2-3 minutes and then shut off. No blower, no humming noise. If then almost immediately, i would turn the thermostat up to 80, it would not do anything at all. No matter how high I turn the thermostat up immediately after the blower not coming on, the furnace will not kick on. If I then turn it all the way back down and wait for a couple of hours, it will then do the same thing when I try turning the thermostat up.
 
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Old 11-06-10, 10:27 AM
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You didn't answer my last paragraph, fully.
 
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Old 11-06-10, 11:26 AM
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Fire?

Is the burner actually firing? If you can't see the flame just feel the vent pipe. If it is getting warm/hot the burner is firing.
What is the make & model of the furnace?
 
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Old 11-06-10, 12:52 PM
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Originally Posted by Grady View Post
Is the burner actually firing? If you can't see the flame just feel the vent pipe. If it is getting warm/hot the burner is firing.
What is the make & model of the furnace?
Yes, I cant actually see the flame however, the pipes do get extremely hot. It is a Williamson Tempomatic
 
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Old 11-06-10, 12:55 PM
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Ok, not sure how to test for the 120 volts. And yes, I can turn the fan. In PA and it is really cold today.
 
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Old 11-06-10, 02:57 PM
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Does the furnace have a control like this?
Patriot Supply - 47-21337-81
 
 

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