How to Troubleshoot a Faulty Thermostat

Your home’s HVAC system is controlled by a low-voltage thermostat, which controls the system’s functionality and the temperature the house should be at. Better thermostats can also help with high or low humidity when controlling the right equipment. If you are noticing issues with your HVAC system, call us at (713) 234-1275. We will come out to all first-time customers to diagnose the problem and recommend the proper solution at no charge. This service is an $85 value. The following is a list of problems you may experience:

  1. No Cooled Air is Produced

If no air is being pushed out of your vents, there are a variety of possible causes. First, check your circuit breaker to ensure that it has not been tripped. You should check the battery for some digital thermostats. Make sure the filter is clean. It is possible that you have a problem with the system controls or components. It could be something minor, like a blower compartment door switch or float switch being open.  More serious problems are a bad compressor, blower motor, condenser motor, weak or open capacitors, bad start components, contactors, or loss of refrigerant.

  1. The Temperature is not what the thermostat is set to.

You may notice that the system is running, but the temperature is not set to the level you have designated. This could mean that your filter is stopped up, you have an air leak or distribution problem, or a refrigerant leak. Contact your local HVAC company in Houston, TX, to ensure your thermostat and comfort system is correctly set up in your home.

  1. The System is Cycling too Frequently

If your system turns off and on too frequently, often called short-cycling, it is commonly due to a system being oversized. Many systems have low-pressure safety switches that will cycle the system when a refrigerant leak has occurred. Take the outside temperature into consideration as well. On unusually hot or cold days, it is common for the system to cycle more frequently to keep up with the extreme temperatures.