6 Serious HVAC Issues That Need Professional Repair

An HVAC unit helps in the regulation of your home’s temperature. If your unit fails, it may have a substantial impact on the degree of comfort in your house. While some problems are straightforward to resolve, others need the services of a specialist. Here are six HVAC issues that require professional assistance.

Fluid Leaks

If your HVAC unit is leaking fluid, turn it off and call a professional for emergency service. While condensation on the unit is acceptable, an abundance of moisture around your HVAC unit might suggest a more significant problem. Excess fluid pooling around your unit might indicate that it is leaking refrigerant, which implies the coil is freezing and then thawing into the water, causing it to puddle on the floor. Only a professional can safely examine and repair a refrigerant leak in your unit.

Excess fluid might also indicate blocked or damaged drain lines. Excess fluid can also be caused by issues with the evaporator pan, collector box, and heat exchanger, which should be rectified by a professional.

Strange Noises

If your HVAC unit is producing strange noises, it could mean one of several things:

  • It’s out of balance.
  • It’s running too loudly.
  • It’s not running at the right speed.
  • It’s improperly vented.

While it’s important to know the source of the noise, it’s equally important to know that a professional should address it. 

Running too loudly or too slowly is a safety hazard and can damage your unit. HVAC issues should be assessed by a professional at Legacy. An HVAC professional from Legacy Heating can assess your unit to locate the problem and make the necessary repairs.

Poor Airflow

When your HVAC unit isn’t working properly, you might notice that the airflow is poor. Air can be pushed out either too hard or too weakly, indicating a problem with the blower assembly. A professional can diagnose the problem with your blower assembly and make any necessary repairs.  

Bad Odour

If you have a bad odour in your home, the source could be your HVAC unit. Many times, a dirty air filter can lead to mould and odour issues. Mould and mildew can build on or around your unit and can be hazardous to your health.

If your air filter is dirty, a professional can replace it for you, which should resolve the odour issues. Additionally, if your unit is near a wet area, such as a bathroom, it can become contaminated with mould, which will cause a bad odour. A water leak in your home may cause water to seep up into your HVAC unit and into the ducts. If your HVAC unit is mouldy, you should clean it and have a professional inspect it.

Uneven Temperatures

If you find that the temperature in one room is warmer or cooler than the others, this could be a sign that the ductwork is not working properly. Double-check your HVAC unit’s thermostat settings to ensure that it’s calibrated, and check the temperature inside your ductwork.

Thick Dust Buildup

Over time, dust can build up inside your HVAC system, which can negatively impact its performance. Excessive dust in your ductwork can even create a fire hazard, so be sure to have your unit cleaned regularly.


Contacting a professional for HVAC repair is important for your home and family’s comfort. Just as you wouldn’t tackle a plumbing issue without calling a professional, don’t try to repair your HVAC unit without the proper training. A certified technician can assess your system and perform the necessary repairs.

If you are looking for air conditioning repair or other HVAC services in Edmonton, you can contact Legacy Heating. We work closely with residential homes in need of HVAC services. Get in touch with us to hire our expertise.

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