Air Conditioner Control Panel Blank

The issue may be that the circuit breaker for the thermostat has tripped.

Air conditioner control panel blank.

The flap will close properly. Help i have no display on the air conditioning thermostat control its blank. I flipped the ac fuses on off at the main fuse box panel and nothing happened. You can t control your air conditioning and heating without it.

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. If your air conditioner s condensate pan has flooded it will activate a limit switch that will shut off power to the unit. In such a case operate the air conditioner. The thermostat is a crucial part of your home s hvac system.

Then out of the blue the air conditioner came on and the. In the event the air conditioner stops operating due to a power outage causing the flap to remain open the flap may not close completely when the power supply resumes. 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. Programmable thermostats feature easy to read screens that allow you to program.

The safety switch was triggered. The flap may have been touched during operation. 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. I replaced the two 30amp fuses in the outside fuse box and nothing.

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. Reasons for a blank screen on a honeywell thermostat.