A blank smart thermostat screen isn’t necessarily a sign of something terrible for the air conditioner in your Palm Desert, CA, home. But it can be a huge inconvenience when you need to stay cool. Read through this list to learn some reasons your smart thermostat screen could be blank.
Dead Batteries
Many programmable thermostats, smart models or otherwise, use batteries for power. The batteries could have gone bad. Replace them and see if the smart thermostat screen turns back on.
Bad Wiring
If your smart thermostat doesn’t have batteries, it must be on the same wiring as your HVAC system to draw power. Fouled wires of some sort will usually result in a blank screen.
Open Furnace Door
If you have a central air conditioner, it usually relies on the furnace’s blower to circulate the cool air through the ducts into your home. If this is your setup and the furnace door is open, with certain thermostat models, the screen will be blank until you shut the furnace door.
Float Switch
If your thermostat draws power from the HVAC system itself, the system’s float or safety switch can stop the power, causing the screen to go blank. In many cases, the float switch senses moisture, which causes this to happen. Schedule HVAC maintenance to investigate and make necessary repairs.
Circuit Breaker
Sometimes, current surges will cause your HVAC system’s connection in the junction box to trip. It could also trip for other reasons. When this happens, your smart thermostat screen will go blank if it draws power from the system.
We have many decades of experience with all HVAC repairs, including those regarding thermostats. When your thermostat screen is blank, have us look at your system to ensure everything’s in tip-top shape. To make an appointment for HVAC maintenance, call Esser Air Conditioning and Heating today.
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