I have a goodman furnace 98% efficient it works fine on heat but when I run the ac unit it will run fine for an hour or three but then it will start stoping and starting the blower motor I have changed the transformer the blower motor the door switch anyone have any idea why it does this any help...

I have a heil system and when it is on Heat or Cool the blower runs for about a min and then stops for a min. And continues running like that. The main system that is outside (condenser I quess its called?) keeps running. It is just the blower in the furnace in the garage. I had a company look at...

The central a/c unit worked fine all day and in the evening started a new cycle stopped after about 30 seconds and started making a loud noise inside the air handler for around 90 seconds and tried to start a new cycle without success. I turned the unit off overnight and back on the following...

This is a very helpful sight and I am hoping someone can give me some advice. I have a fairly new house (5 years old) and I am having some problems with a Carrier unit. At the end of this summer it started tripping the breaker on very hot days and we called a technician whom found nothing wrong. ...