I get the lenox unit, when I try to runthe A/C , it run for about 5 min and then it stop running even though the unit out side still run,the blower fan run like very slow,I put the temp 65F but still not run.I turn off for a while and turn back on it come back run like 5 min and do the same thing.I chang the control board already ,please help me

Bruce - If I had to guess, I would say it might be the starting capacitor on the blower motor.
Here is a link to a similar situation.
If it is this capacitor the blower motor will be very hot. The reason it stops running is that the motor cannot get to full speed and therefore overheats. A thermal shutoff stops the motor from melting itself.

The capacitor should be about a $10-20 part, but much more if you have a serviceman come out.

Hope this helps,
WallyH

Thank you for your help,I will go to get the capacitor Monday, I check the motor it is very hot,I let you know when I change the new capacitor,thank you so much

Hi I change the new blower motor ,now my a/c working very good,any way thank you for your help