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Thermostat Problems? How to Troubleshoot 3 Common Issues

Wed, Jul 28, 2021 at 10:00AM

Thermostat Problems? How to Troubleshoot 3 Common Issues

When something goes wrong with your thermostat, it’s easy to suspect that the HVAC system is suffering from serious malfunctions. However, there are some cases in which the extent of the error may be limited to the thermostat itself. Learning basic thermostat troubleshooting methods can save you time and money by sparing the need to call out an HVAC technician. Want to know more? Just read on!

HVAC System Stops Working Abruptly

Is the display on your thermostat dark? There are a number of reasons why that is the case, but you should always start by verifying that the thermostat is still receiving power. If replacing the batteries doesn’t do the trick, then check your electrical panel for a blown fuse or tripped breaker. If the thermostat is still unresponsive, then make sure its respective breaker is shut off before removing the cover. If you find a lot of dirt built up inside, use a canned air or soft bristle brush to clean away the grime. After that, look closer for issues like loose wiring or terminal screws. If the wiring looks corroded, then you may need to completely replace the thermostat.

Inside Temperature and Thermostat Setting Don’t Match

If you find that the temperature inside your home doesn’t match the setting on the thermostat, then this issue could be indicative of dirty thermostat components. In order to clean the inside of your thermostat, follow the instructions above to remove the cover, then get rid of all the grime you can find on the components. In the case of non-digital thermostats, a simple bump can throw them off level, which will also cause setting and temperature discrepancies, too. If you have a non-digital thermostat, then try remedying this problem by making the thermostat level again with a carpenter’s level.

Continuous or Short Cycling

This issue can be caused by a non-level or dirty thermostat, so follow all the above steps to make sure that your thermostat is clean and level. If you are still experiencing non-stop or short cycling of your HVAC system, then the thermostat may have an improperly calibrated anticipator. Homeowners can lengthen the cycle by adjusting the anticipator level one notch at a time toward the word “longer” on the dial. If that still does not fix the problem, then it may be time to upgrade to a new, programmable thermostat.

Not every thermostat problem can be solved alone, unfortunately. If you are still experiencing problems with your thermostat even after making sure that it is receiving power and clean, then the time is right to consider calling Palm Coast air conditioning experts! Give your friends at Extra Air and Heat a call today to learn more about what could be going wrong with your air conditioning. We’ll show up on time and get your project done before you know it!

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