When your home’s central air conditioning or heating system isn’t working properly or isn’t working at all, don’t conclude too quickly that something’s wrong with the equipment. The issue could be in your thermostat. Before calling in a professional, try some troubleshooting to determine whether you have thermostat problems. Following are some common thermostat issues.
The A/C or Furnace Won’t Run
- First, check the power supply to the HVAC system and thermostat. A circuit breaker may have tripped or a fuse might have blown. If simply flipping the circuit switch all the way off and then on again doesn’t work, contact a certified electrician or HVAC technician. If the thermostat is powered by batteries, try fresh batteries.
- The inside workings of the thermostat might be dirty. After shutting off the power to the thermostat, open up the casing and make sure it’s not coated with dust, spider webs or the like. A dirty thermostat can interfere with electrical and mechanical components. Clean it with a soft brush and compressed air.
- Look for wiring that’s loose or disconnected.
Room Temperature and Thermostat Setting Don’t Match
- Here again, it could be a dirty thermostat. Repeat the aforementioned steps.
- Check to see if the thermostat is level or askew. If it wasn’t installed correctly, that can offset calibration and settings.
- Is the thermostat located in the right spot? If the thermostat has been installed in a location that heats up from sunshine streaming through windows or where cool drafts enter from outside, it won’t provide comfortable temperatures elsewhere in the home.
The Thermostat Shuts Down When It Shouldn’t, or It Won’t Turn Off
- This is yet another situation where cleaning the thermostat might fix things.
- Check to make sure the thermostat is level.
- The anticipator in a mechanical thermostat may be malfunctioning, which could cause system shutdown for no discernible reason, or cause the system to run after reaching the desired temperature setting.
If you try troubleshooting and still have thermostat problems, contact Amarillo Air Conditioning. We provide quality services to the greater Amarillo area.
Our goal is to help educate our customers in Amarillo, Texas about energy and home comfort issues (specific to HVAC systems). For more information about thermostats and other HVAC topics, download our free Home Comfort Resource guide.
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