Question about Goodman GMS90703BXA Heater

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Will not turn off on auto?

Had wires burn

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  • wmnixdorf May 11, 2010

    what had wires burnt and where?

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There are certain faults like "Flame Rollout" and "High Temp Cut-out" that will cause the fan to run continuously until corrected. If the furnace is working then some power is making it to the "G" terminal at the circuit board. Could be a jumper or miswiring.

Posted on Oct 07, 2009

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Light doesn't turn on, nor does it heat up once I turn it on. First time I used it this winter it worked but smelled like it was burning and then stopped working?


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1 Answer

With my thermostat on auto and on heat, and the furnace turns on, the fan will not turn on with it. If I switch the fan to on it will run after I repeat back and forth from auto to fan on several times...


Well, here is the deal: unless you rewired from two wire to multiple (usually 4 to 10 wires) wires, the fan cannot be controlled from the thermostat, even though the thermostat indicates that it can > it is a physical wiring and fan administration issue.

Unless you have a newer furnace, the fan is controlled by plenum temp. Works like this: burner turns on, no fan until the plenum temp reaches set temp,....then burner off, and fan keeps running until pelnum temp drops, and often the fan may kick on a few more times as this temp depletes.

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I have a heil heating and cooling unit.The fan is not working but it is still heating ,just not like it did.


Try turning your thermostat from fan auto to fan manual, if the blower starts then you have a burned out speed on the heat leg.

If this is true, shut power off to furnace and try and trace out the blower motor wires. Usually they will
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1 Answer

My main board and wires have a light brown sticky film on it. When i turned my furnace on it would not turn on.


The control board is probably burned out. The brown film is from a resistor or something that burned out on the board. you are going to have to replace the board to get the furnace to run.

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1 Answer

Smell of electrical burning.. no more heat in house!


First of all keep this in mind.
You will need to locate the wires that got hot. If you can't or if your not sure, I suggest that you call a service company. If they ok the unit and it catches on fire after wards, their insurances will cover you unit and or home if god forbid it burns. This is to be on the safe side.
Now, this is where I would look. Your element should be on it's on circuit. There should be a disconnect within reach of the air handler. Some are fused and some are not. The wires that got hot enough for you to smell them should show signs of being hot like the plastic will be melted around the wire. You said that the heater was running. Was this the first time you have used it this year? If so, are you sure it was not the dust burning off the elements? They will smell like something burning when you first turn them on each year. Although if your sure you smelled wires getting hot, please continue looking for just that. Keep in mind that the elements have 220 volts coming to them. It comes into the unit and go to a switch or relay. From there the power goes to the elements and then to a neutral. These are the wires you will need to pay the most attention to. Good luck.

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Unplug & then plug in... will help for a little while, but the F1 will return. Sorry.

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