The industry standard when designing the size of your air conditioner is to maintain 15 degrees cooler than the outside temperature. Sounds silly but it's true. The result is an undersized or borderline sized unit that will have trouble cooling your house on the hottest days. With this design it is imperative that your undersized unit is giving you 100% of it's capacity. A master technician can field verify how many BTU's your unit is producing. If it won't come on until it is 85 degrees outside then they must have programed your thermostat to do that. Your unit must cool regardless of the outside temperature otherwise it will never catch up when it gets above 85. Until you get resolution I suggest removing any programs and use the thermostat in its "manual" mode. You don't want some "ghost" program turning you unit off.
Good luck,
Bruce
Florida State Certified Central A/C Contractor
|