Home Service Professionals
Thermostat

3 Problems Caused by a Faulty Thermostat

The modern thermostat is just a small part of your heating and cooling systems in your home, the thermostat plays an enormous role. It must stay in good repair and operating conditioning for your HVAC system to run the way you need it. Often, thermostat malfunctions are mistaken for faults in other parts of a comfort system, although trained professionals can quickly get to the source and provide the repairs or replacements needed to fix the thermostat.


Below are some common thermostat problems:

Heater won’t run: when an HVAC system fails to come on, it causes an immediate sense of alarm. Although it’s possible that a catastrophic mechanical failure or power loss has caused this, a more common cause is a thermostat that has lost connection to the system. Thermostats use five different wires to communicate to the HVAC system, and it only takes a lost connection in the ones responsible for turning on/off your heater to cause the system to stop running.

Heater won’t stop running: the opposite problem can also occur. Crossed connections can lead to the heater continually running, wasting energy and making your home extremely uncomfortable. This can also occur because of a thermostat miscalibration, meaning the thermostat is misreading the temperature in your home and believing the HVAC system must continue to run to reach the target temperature.

Uneven heating: a miscalibrated thermostat can also cause a heater to run too briefly to be able to spread heat evenly through your home. If you start to notice rooms in your home that are hotter or colder than others, the thermostat is one of the likely reasons for it.

If the thermostat is behind any of these problems, it isn’t difficult for a trained repair technician to fix the problem. Often, it will require a new thermostat installation, and you should take this opportunity to update your model to the newest technology: an advanced thermostat will save you money with precision controls and the ability to program it or access it remotely.
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