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Common HVAC Problems and Troubleshooting


It is essential your HVAC is working during the hot, humid months and during the winter season when it is in constant use, the HVAC system may experience some glitches now and again, either due to human or electrical error. Problems with the air filter, thermostat, condenser or air filter can be fixed without having to consult an electrician, so it’s a good idea to become familiar with some of these problems and their solutions. Below are some of the most common problems with HVAC systems/


Most modern HVAC is used in tandem with a digital thermostat which constitutes a problem if your system doesn’t turn on. Ensure your system is set to AC mode and properly programmed. If you are adjusting the temperature manually, it is easy to hot a wrong key-, especially in touchscreen designs. If these routine fixes don’t help with your issues, check the thermostat to see if it needs new batteries. Lastly, check for a tripped circuit breaker or a blown fuse. Ensure the system wasn’t compromised by a storm or local power outage


This is another common problem with modern air conditioning units, and it often results from incorrect thermostat placement. If the thermostat is placed where warm either due to exposure to direct sunlight or heat is emitting appliance, the temperature readings can be compromised. If there is a need to change the location, you should consult a professional for proper placement and installation. You might also have a unit which is the wrong size for your home dimensions, and if you recently renovated your home you may need to consult a professional to do a load calculation.


There are a few reasons you might be hearing odd noises when the air-conditioning unit is running, and one of the most common of this issues is a loose screw- either on the unit or one or the grilles or register. If the noise is loud and seems to be coming from a particular room, it could be a grille or register that needs to be tightened. You can also try tightening those parts of the unit where you find loose areas if the sound seems to be emanating from there. A consistent sound during a cycle may be signs of a bigger problem- including a bent fan blade- which means a HVAC professional would have to assess the unit.

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