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I have an old Coleman forced air furnace, Model No. 263IA, Series 756. The blower doesn't run. It had been running but then had began making loud noises. Now it just makes an electric hum sound.
Rmove the two screws holding the blower in place and slide it out. With the power off, rotate the wheel and inspect for debris or an impingement. If everything turns easy, you have a bad motor or start capacitor. If you have rubbing, adjust the wheel. If the motor will not turn, replace it.
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The biggest items to check after blackout are the circuit boards and the transformer. Also if the furnace was running when it happened, the unit could trip on limit...BUT if this happened the blower would run nonstop with no activity of heat. If no blower, you will need to start with 120v to furnace and then 24v from transformer.
first off buy yourself a honeywell stat, in my personal opinion lux stats are garbage, I have run into so many that are bad stats !!! but as far as your fan not shuting down, sounds to me like your fan center on your circuit board is bad and will not shut down the fan when needed, you will have to replace the circuit board, as the fan center is a part of the whole of the circuit board, hope that helps
Small blower motor? Are you talking about the combustion blower if so then check your vents for blockage.. if the vents are blocked won't work... if it has a control board init it will give you a diagnostic code. Flashing light on the board... count the flashes and look up the fault on the chart in your owners manual ot on the furnace door..
replaced blower motor
electric comes on fan staysrunning
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