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My fan will not start, if I take a stick and spin it it starts. I have replaced the fan motor, capacitor and start relay. Even bypassed the start relay, all have same problem. I had 2 cousins that have been in the HVAC field for 20 plus years each and they dont know the problem.

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  • Robotinner May 11, 2010

    you sure the microfarads are right on the fan rating



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Supply the fanmoter from a completely seperate source of power and confirm that it is working. If it works, look at your supply board and contactor relay if there is one.

Posted on Jul 02, 2009


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My outside amana prestige ac unit ( rcb30c2a) gets very hot when it is turned on, but the fan does not turn.

Hello, try spinning the outside fan with a stick or a small object you can spin the fsn blades with, if this gets the motor running the capacitor must be replaced. If the motor does not start by manually pushing it the motor will have to be replaced.

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Fan motor on home ac unit will not run .

Either a bad capacitor or fan motor. Try spinning the motor with a stick with power applied and see if it starts up, if it does the capacitor is bad, if not the motor is bad.

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Hello, if you try to spin the motor by hand or with a stick and it starts then the problem is a bad capacitor, if it does not start then the motor is shot.

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This is could be the capacitor that has failed. The capacitor gives the motor the initial kick in the right direction to get it started. You can confirm it is a failed capacitor and that the motor is still ok by flicking the fan blades with a stick in the direction it should spin just as you switch the pump on. The pump should run normally. You can get them off Amazon or ebay for around 5 Pounds (GBP)

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1 Answer

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After about 5 minutes the unit stops working. No sound or even a fan noise. I just cleaned the filter to see if that helps, but it didn't.

Is the fan running and stopping before the unit completely quits?
If the fan quits the compressor won't run very long.
I would start with the fan motor or capacitor.
Shut the power off to the unit, spin the blower wheel to see if it spins freely. If it doesn't spin freely, (there appears to be a little drag when you spin it),the bearings are bad, if it does spin freely, then try moving the motor shaft from side to side if there’s any play in the shaft side to side then the bearings are worn and motor needs replaced. Then, check the capacitor, if it’s bulging even slightly, the capacitor is bad and needs replaced. Most of the time people replace the capacitor if motor seems ok. If capacitor is ok, turn power on to see if the motor is getting the proper voltage, if it is and not trying to run, then the windings are probably open, the motor's bad and needs replaced.

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1 Answer

Air conditioner blower does not work.

Fist, be very careful. I assuming this is NOT a gas furnace. Turn the thermostat to OFF and fan to AUTO. There should be a power disconnect box right there next to the A/H. Open the front panel of the air handler and and visually inspect the area for burnt wires or debris in the wheel. Go back to the thermostat and set the fan to on....if it's a digital thermostat, you will have to use a long stick or screwdriver to get the wheel spinning (if it doesn't move easily, new motor and capacitor), turn the power back on and go to the thermostat while the wheel is spinning and turn the fan to "on" and run the temperature low. If the fan continues running up to speed, it needs a new capacitor ($10-15); if it doesn't start running, it could be the motor or the fan relay. To check if it's the motor, you will need a multimeter. Check the voltage from the wire going to the relay (not on the heat strip at the top) and the other wire that DOESN'T go to the capacitor. If it reads around 220 volts, it's a bad motor; if it reads about 115 volts it may be a bad relay. To check this, check the voltage on the connectors at the very bottom of that relay and it should read about 24 volts. If it does, tap on top of relay, if the motor start, replace the relay. If there's not 24 volts to activate the relay, it could be a loose or broken wire or a bad relay in the thermostat. ALWAYS KEEP IN MIND THAT THERE IS 220 volts on those terminals, so be careful of where your hands, fingers and tools are touching.

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1 Answer

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