The compressor starts but the cooling fan does not. If I slightly push the fan blade, the fan will spool up to full speed. The fan motor moves freely, not locked up. Does the fan motor have a start winding in it, in addition to the start capacitor. Should I just replace the capacitor or doy ou think a start winding is broken?
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Re: Goodman A/C model ch42-1 cooling fan not working
These motors start with the capacitor,that could be the problem in most of the cases ,but sometimes even if the capacitor is new they don't start or after a while they stop by overload.First try replacing the capacitor(no more than $10) and keep an eye on it beacause if this fan at the condensing unit doesn't work it could damage the compresor.
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Either the condenser fan has bad bearings, or it has a defective fan capacitor.
Turn off the breaker to the outside unit.
Spin the fan blade by hand.
If the fan blade spins easily and will spin a few revolutions with no problem the fan bearings are good.
If not, replace the fan motor due to bad bearings.
I am pretty sure you fan motor is bad because with a bad capacitor the fan motor will not get up to speed and may just sit and overheat.
I'm leaning toward a bad fan motor.
This could be several things. First turn of the power and make sure the fan turns freely using a screwdriver or something else that you can reach the blades with. If they do not turn easily you may need a new fan motor. If the fan stops, head pressure on the compressor will go up until it trips the High Pressure switch. It will also make the fan work harder so that it gets extremely hot just as you describe. Let me know what you find and we can go from there.
Without being there to see it and have only your description in front of me, it sounds like the fan blade could be out of balance.......but it sounds more like a loose fan blade hub. Most Goodman units offer a minimum 5 year parts warranty. The Labor warranty is questionable, but the installing contractor or the Goodman Distributor should be able to give you that information. Of course this would cover manufacturer problems and not physical damage. As far as a history of this problem with Goodman..........I've seen it with every brand. If there is a problem getting it under warranty, you might be able to purchase the blade yourself. Before replacing the fan blade, I recommend disconnecting the motor wires from the contactor, tape off the ends and remember exactly where they were attached.....then start the unit to see if the noise is still evident, if so, it's probably your compressor. I recommend a certified repairman....not the one that quoted you $800.00. If you hear only the compressor start up and not the loud noise you are discribing, then try replacing the blade first.
I hope you find this information to be very helpful to you. :-)
When ever you hear a buzzing like you are hearing means one thing one of the fuses on the outside disconnect box is bad. Only getting 1/2 the power. Find the bad fuse and get the same size and will be good to go. ken