Air Conditioner Control Panel Blank

Programmable thermostats feature easy to read screens that allow you to program.

Air conditioner control panel blank.

Help i have no display on the air conditioning thermostat control its blank. Then out of the blue the air conditioner came on and the. The issue may be that the circuit breaker for the thermostat has tripped. I flipped the ac fuses on off at the main fuse box panel and nothing happened.

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. You can t control your air conditioning and heating without it. I replaced the two 30amp fuses in the outside fuse box and nothing. Reasons for a blank screen on a honeywell thermostat.

In such a case operate the air conditioner. 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. The air or heat doesn t turn on when i switch on off. If your air conditioner s condensate pan has flooded it will activate a limit switch that will shut off power to the unit.

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. The safety switch was triggered. 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. The flap may have been touched during operation.

Your thermostat is the control center for your hvac system. The flap will close properly.