Air Conditioner - need help

[dmellich]

Hello all - need some help from you air conditioner types.

When we turn it on all we hear is a humming from inside. Went on the roof and had the DW turn on - humming is coming from the fan motor and isn't spinning the fan. I was able to use my finger and get it going but ran only 30 seconds and stopped - motor still humming.

In the top picture I'm guessing the larger black cylinder is the compressor - it does kick on after 30 - 45 seconds after turning on the AC (and the motor still hums/fan not turning).

I'm thinking one of two things - either the motor is bad or not getting enough current.

Thanks in advance for any help/advice.

David and Cheryl

[Mikelff]

Sure sounds like a bad fan motor. If it get any decent current is should still spin the fan. The fact you hear a loud hum sounds like it is shot. Get all the info off the motor and google it. A replacement may or may not come with the fan blades. I’m not an expert but a friend of ours had the same thing happen. He just replaced the motor and was back in business. Hopefully more folks may have other solutions. If a brushless motor is available you want that one.

[Ahdmeyer]

check the capacitor i bet that is what is possibly wrong. best to check with a meter that has microfarads but can be done with a ohm meter if it is shorted. whatever you do make sure power is off and the capacitor is drained! if you are not sure and confident please let someone that knows do it. just google capacitor checking and you will find many utubes on it. on the capacitor it will show what voltage and microfarad rating it is. here is a utube of it

https://www.youtube.com/watch?v=Ty_ou_TW5EM

al meyer
3931fb
az