Why Is My Thermostat Screen Blank in Frankford, DE?

Thermostat issues will often be reflected in the functioning of your Frankford, DE home’s HVAC system. If your thermostat screen goes completely blank, this may appear especially dire, but it need not necessarily be so. Here are some possible things that a blank thermostat screen might signify.

The Unit Is Off or the Batteries Are Dead

To begin with the simplest explanation for the blank screen is that the unit might simply be off, or the batteries might be dead. Make sure that your unit is on, and if it has batteries, replace them. If the problem persists, you can move on to more consequential possibilities.

Furnace Door Is Open

Some thermostats will refuse to turn on unless your furnace door is completely closed. To guarantee that no other furnace issues are adversely affecting your thermostat, request our heating services.

Wiring Problems

Many things can cause wiring issues, and a technician will have to examine your electrical setup to determine the exact cause. However, some possibilities include frayed wiring, improper wiring installation or rodents behind the walls chewing through your wires.

Tripped Circuit Breaker or Other Safety Switch

Most modern thermostat will connect to your home’s electrical system. If, for whatever reason, your thermostat or your HVAC system pulls in significantly more power than usual, your circuit breaker may react and cut off the power to the thermostat. Resolving this issue typically requires professional intervention.

Your thermostat screen can also go blank if the unit trips other safety switches like the float switch or the high-limit switch. Float switches exist within your HVAC system and will turn off your thermostat if they detect too much moisture in the drain pan. High-limit switches react whenever your system becomes overheated.

Your Unit Is Just Old

The average life expectancy of a thermostat is about 10 years. If yours is older, it might simply have reached the end of its usability. We recommend installing a new controller, as the advantages of efficiency and functionality are considerable.

To handle most of the problems described above, you’ll require professional services. Call Custom Mechanical today to schedule an appointment for our HVAC services.

Image provided by iStock

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