Are you talking about the condenser fan motor on the top of the unit? (usually at the top of the unit, anyway....the big fan)Just had our Carrier A/C unit checked a couple of weeks ago. Today, the condenser motor started to hum and wouldn’t kick on. This was a 4 pm. C&K had someone here in 30 minutes. Turns out the motor is bad. Problem is they don’t have a motor on hand.
Thankfully we still were covered on parts. They waived the service call since they were just here two weeks ago. Still labor is $300. Unit warranty runs out in December. Motor alone is $250. So I did save a little bit. Nice to be able to open the windows yet with no humidity yet. Fingers crossed they get it replaced tomorrow.
That happened to our 12 year old A/C unit last June. Contacted an HVAC buddy of mine, he had me just manually start the fan by pushing the fan blades with a stick from the opening on top. It didn't take much to get it moving, and it spun right up.
A $20 capacitor from Grainger and 15 minutes of opening up the back of the unit to install it, and it works great again.