A/C fails at +90 Degrees - Help
I've had problems with my central air since May 2006 and to top it off difficulties with the Home Warranty Company that it is insuranced under. If someone could please help I'd appreciate it.
Problem: The A/C quits cooling when the temps reach approx 90 degrees. The fan keeps blowing air, but it is warm air. When this happens we quit getting water/condensation from the drain pipe. The Air Conditioner sits on my roof, but so do most in my neighborhood.
May 2006 - Condenser fan replaced because it had been installed backwards.
July 2006 - Relay Switch Replaced
Sept 2006 - Condenser Replaced
Then no more 90+ days occurred because it was Fall
Now we are into Spring Summer with 90+ days - Same old problem
May 2007 - relay switch replaced again, but still won't work above 90 degrees.
The last repairman said that the unit was adequate for my house, but my composite roof gets very hot. It was working when he was here, but it wasn't 90 degrees at the time.
Could someone tell me if there might be something (some other part) that needs to be replaced or if this is just to be expected with roof air in a hot climate. The repairmen tend to be vague and the Warranty company drags it's feet.