Questions & Answers for: carrier air conditioner thermostat screen

...Carrier 38tra048340 ac 4 ton unit outside, heater in attic. Thermostat is Totaline P374-1100. Power went out than back on after a few hours due to vehicle crashing into power pole. AC was running at ...

...Carrier heat pump system with emergency heat (2 zone). I came home, my thermostat screen was blank. My HVAC buddy said open the door on the attic unit and check the fuse. Sure enough, the 5 amp fuse ...

Carrier thermidistat screen went blank Turned on the air-conditioning; it was working then the screen went blank Check the battery in the thermostat it is dead!! Should be 2 AA batterys!

...thermostat carrier debonair 250 thermosat is blank. no battery that I know of. direct wired I think. why would it have nothing on screen? Check voltage at unit. Also check the 5 amp fuse in the unit. ...

carrier infinity a/c system, it is about 1 1/2 years old. There are 3 zones. All thermostats are blank, apparently all are without power. All of the breakers to the system are fine. . There are two, A

...screen displays E2 error, blanks out, and then returns to normal and follows the programming correctly. So the problem is only when I override the programming. E2 is the error code for low line ...