There may be a problem with the air conditioner or heater that has caused the transformer to stop sending voltage to run the thermostat. If you would like to get a quick rundown of the top three things you can.
/cdn.vox-cdn.com/uploads/chorus_asset/file/18287864/dseifert_190705_3501_5303.jpg)
Honeywell Home T9 Thermostat Review Smart Sensors
Thermostat display not working. Indoor temperature display is incorrect. If you see a green light blinking in the upper part of the display your thermostat is starting. 1 check wiring between r c. 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. Nest thermostat not functioning red light blinking. If this doesnt work then the issue with the thermostat could come from loose connections or other wiring problems.
You may want to laugh or roll your eyes at this one but unless you live by yourself its. Change the batteries to see if this restores the thermostat screen. For an air conditioner the problem might be the safety switch installed in the drain pan activating because of an overflow. No indication on display. 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. If your thermostat is wired directly into your homes electrical system a blank screen indicates there is no power going to the unit which means there may be a tripped breaker or a problem with.
Thermostat batteries died and need to be replaced if your thermostat is blank the first thing you should do is check the batteries. Depending on the model of your ac. A blank thermostat is one of the most common calls we get and is a sign that your heating and air system is having an issue. One of them might have tripped and cut off the power the thermostat. If you see a red light blinking in the upper part of the display the battery is low and being. 3 check for broken or shorted thermostat wire.
2 check transformer for 24vac output. Somebody turned it off. The safety switch was triggered. 1 indoor temperature display needs calibrating always allow 1 hour before calibrating after any power cycle 1 calibrate indoor temperature sensor. If the thermostat runs from the houses electrical system check on the circuit breakers. 4 reasons your thermostat display is not working and how to fix it 1.
Some thermostats allow users to adjust the displays brightness. Lcd brightness display is too low.
Gallery of Thermostat Display Not Working
