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Old 11-14-2013, 05:07 PM   #15
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A inducer fan usually does not have a capacitor
most units have a circuit board with a light and if it is blinking it is a code of what is wrong if you turn off the power it will erase the code

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Old 11-14-2013, 05:14 PM   #16
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Originally Posted by monkey View Post
First, I want to Thank everybody for your help !! The furnace is propane, 120volt, direct drive motor, and it's the induction fan that starts/stops before it kicks on, then everything is fine. The blower motor sounds good when it starts. I will try the capacitor first, and reply here this weekend. Thanks again, Monkey
Im not an HVAC guy but do have a pretty good knowledge of furnaces. The inducermotor should turn on for a few seconds and stay on. This clears the burners of any stray gas. After a few seconds the electronic ignition igniter should light and then the gas valve will open and the fuel will ignite. The inducer motor should not turn on and off. It should stay on the entire time till after the fuel valve is shut off. There are one or two pressure sensors that check for any intake or exhaust restrictions. These tubes should be cleaned out yearly as they can collect debris. I have never cleaned mine but I have several friends in the HVAC business and this is what they tell me. Any restrictions in the intake or exhaust tubes can also cause issues.

If this system has central A/C, the blower motor runs on high. If the capacitor was bad, I have to believe that it would have been apparent then. Usually the heat fan speed is medium or low.

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Old 11-16-2013, 09:21 AM   #17
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Well, today I figured out how to 'slide out' the entire "main" blower fan, motor, and control board. Had to unhook a bunch of wires of course, but I took pictures, and labled them. We spent 45 minutes just cleaning the 18 ? yrs of Gunk built up on the squirell (sp?) cage fan and housing.(it was gross, but we've only been here 8 yrs....) I cleaned the rubber tube going from the induction fan to the pressure switch, cleaned everything I could find. Put it back together, and I'm sure it's not right, "Because I had No Leftover Parts !!!" Anyway, it fired up and worked fine, but then again the glitch we had only acted up once in a while, so we'll see. I'm sure it's better than it was.
Once again I THANK YOU to everybody for your input ! I have learned a lot from the Great people here on this forum, on many things.

Monkey, pilot of a Great Dane hauler,
2015 Silverado 2500 Duramax/Alison 4x4 CrewCab 2016 Cougar 28SGS
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