Roof Air Conditioner Blower Fan Kicks Off After around 20 Minutes

[amflat30803]

I have a Coleman Mach 3 A/c Unit and it starts up and runs fine but after about 20 min the blower shuts off and you have to let it sit for about 1/2 hr before it will fire back up the compressor kicks in and out like it is suppose to. Its just the fan that Shuts down. We Thought maybe because it was ran through an extension lead so we eliminated that and tried still same results than we tried oiling all the shafts for the motors and it still did the same thing. If you stand next to it you can hear the fan slowing down and then eventually kicking off. So I am at a loss of what it could be or other areas to check. So Could someone please shed some light on this as we have a weekend planned in a couple weeks and it could be very uncomfortable if it gets hot.

[amflat30803]

The solution to the problem was the start and run capacitors ,replaced unit works great now.