Thread: a/c fan squeals
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George E. Cawthon
 
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Stretch wrote:
Sounds like the fan bearings are shot. When it starts to squeal, It is
usually too late to oil it. However, you can try if it has oil ports
on the side of the motor. Add 20 drops of 20 or 30 weight
non-detergent motor oil to each port. DO NOT use WD40 or sewing
machine oil or penetrating oil. Use a squeeze bottle with a small
nozzle on the end to get the oil in.

If that doesn't help, you are looking at $200.00 to $350.00 depending
on rates in your area. Should take 1.5 to 2 hours to diagnose and
replace the motor. You will pay more if the fan blade cannot be
reused.

Stretch


A squeal doesn't necessarily mean the bearing is
shot. And, $200 to $350 for a motor is a rip off.
What is to diagnose? it either continues to
squeal after adding oil or it doesn't.
Replacement, at least in my unit, shouldn't take
more than 1/2 hour start to finish no matter how
klutzy one is--unplug the fan wires and remove a
few bolts.

If the oil doesn't fix the OP's fan and the OP has
any mechanical skills, he ought get the model
number, go to a parts place and order the motor
(and fan blade if needed), and replace it himself.

Glad I don't live where you are. It only cost me
$50 bucks to have a tech check the gas pressures
and voltages/amps, add a little bit of gas, and
oil the motor. Took about 20-25 minutes, most of
which he spent talking to me and answering my
questions.