Maintaining your heating and air conditioning system is crucial for keeping your home comfortable
year-round. When issues arise, knowing some basic troubleshooting tips can save you time and
money. Here are five HVAC troubleshooting tips every homeowner should know.

Check the thermostat

The thermostat is the brain of your HVAC system. If it’s not set correctly, your system won’t work as
intended. Make sure it’s set to the correct mode (heat or cool) and that the temperature setting is
appropriate. If your thermostat runs on batteries, check them regularly and replace them if needed.
Sometimes, a simple adjustment or battery replacement can resolve what seems like a major issue.

Inspect air filters

Dirty or clogged air filters can severely impact the efficiency of your HVAC system. They can restrict
airflow, causing your system to work harder and potentially overheat. Check your air filters once a
month and replace them every 1-3 months, depending on usage. Clean filters not only improve airflow
but also enhance indoor air quality. That should be part of a regular preventative maintenance plan.

Examine the circuit breaker

If your HVAC system isn’t turning on at all, the issue might be electrical. Go to your home’s circuit
breaker panel and ensure that the breaker for the HVAC system hasn’t tripped. If it has, reset it and
see if your system powers back on. If the breaker continues to trip, you might have a more serious
electrical problem that requires professional attention.

Clear the outdoor unit

Your HVAC’s outdoor unit (condenser) needs to be free of debris to function efficiently. Leaves, dirt,
and other debris can accumulate around the unit, obstructing airflow and reducing efficiency. Make
sure to keep the area around the condenser clean and clear, and periodically check the unit for any
visible damage. A quick cleaning can make a significant difference in performance.

Listen for unusual noises

Strange noises coming from your HVAC system can be an early indicator of a problem. Listen for
grinding, squealing, or rattling sounds when your system is running. These noises can indicate issues
such as loose parts, motor problems, or debris caught in the system. If you hear anything unusual, it’s
best to call a professional for a thorough inspection.
Understanding these basic HVAC troubleshooting tips can help you maintain your system and identify
issues before they become major problems. Regular maintenance and prompt attention to minor
issues can extend the life of your HVAC system and keep your home comfortable all year long.
Remember, while these tips are helpful, some HVAC issues require professional expertise. If you’re
ever in doubt, don’t hesitate to contact a qualified HVAC company like Knight’s Mechanical. Knight’s
has been installing, maintaining and repairing local heating and cooling systems for more than 40
years.