ducane furnace will not light

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Old 04-17-13, 04:20 PM
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ducane furnace will not light

OK I asked for help the other day and my computer shut down.So now I'm back.I have a Ducane Model#MPGA050B3B.I am getting four flashes on the board which tells me to check my vents ,Flues and registers.Which I did.The furnace will start up and I get 28.39 on my volt meter on both sides of my high limit switch.The furnace will run about one to two minutes.I then get a click that sounds like it's in the control panel.The furnace shuts down and I get a humming sound.Furnace will start again after it cools down.Thanks for any help
 
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Old 04-17-13, 04:57 PM
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is your filter dirty? Are ALL your registers (supply and return) open and not blocked? Do you have a/c? Is the evap coil plugged?
 
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Old 04-17-13, 09:06 PM
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Take the cover off the burner compartment of the furnace. Describe in order and in detail the sequence of events that occurs when you turn up the thermostat.
 
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Old 04-23-13, 06:17 PM
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Thanks for your help.But I guess the four blinking LED lights also mean to check the blower motor.It was starting up and running until the blower would come on and I guess it was dragging too much power and would shut down.Problem solved!Got a new motor and capasitor
 
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