Air Conditioner Control Panel Blank

I replaced the two 30amp fuses in the outside fuse box and nothing.

Air conditioner control panel blank.

Then out of the blue the air conditioner came on and the. Your thermostat is the control center for your hvac system. Help i have no display on the air conditioning thermostat control its blank. If your thermostat screen has gone blank and your thermostat runs on batteries the first thing you should try is replacing the batteries with a fresh set.

Programmable thermostats feature easy to read screens that allow you to program. You can t control your air conditioning and heating without it. In such a case operate the air conditioner. If your air conditioner s condensate pan has flooded it will activate a limit switch that will shut off power to the unit.

I flipped the ac fuses on off at the main fuse box panel and nothing happened. So if you go to your digital thermostat one day to turn on the ac or change its programming only to discover that the display screen showing a total blank you ll have a problem on your hands. Check the electrical panel and see if any of the breakers needs to be reset then see if the thermostat s display has come back on. Operate the air conditioner and then turned it off.

The safety switch was triggered. In some homes an air conditioner or furnace can trigger a safety switch and turn off the thermostat entirely if any damage has been detected. Reasons for a blank screen on a honeywell thermostat. The thermostat is a crucial part of your home s hvac system.

The flap will close properly. The air or heat doesn t turn on when i switch on off.