Did a prepurchase inspection of a 3 level townhome in South Florida which has 2 Carrier units. I had an AC inspector with me. The third floor was warm and humid. I noticed the A/C was not working on the third floor. The builder had a LUXPro or Simple Comfort thermostat on the second unit. Can't remember which thermostat was on which unit. I nudged the thermostat down to 67 & the A/C kicked on. The unit was cooling and the A/C pro declared everything was fine.
Nothing seemed wrong when the A/C was working. If I go through with the purchase what type of better Carrier thermostat can be installed by an A/C repairman.
Carrier A/H FA4CN030
Carrier outside unit 24ABR330A320