Top 5 Common HVAC Issues
Maintaining a comfortable indoor climate is essential for any home or business, and a well-functioning HVAC system is crucial to achieving this. Regular maintenance of your heating, ventilation, and air conditioning (HVAC) system not only ensures consistent performance but also extends the lifespan of the equipment, enhances energy efficiency, and prevents unexpected breakdowns.
Our team at Air Temp has the top five common HVAC issues and how to prevent them.
1) Dirty Filters
Symptoms: Reduced airflow, increased energy bills, and uneven heating or cooling.
Causes: Air filters collect dust, debris, and allergens over time, which can clog and restrict airflow.
Preventive Measures: Check and replace HVAC filters every 1-3 months, depending on usage and the presence of pets or high pollen levels. Opt for high-quality filters that suit your system’s specifications.
2) Thermostat Malfunctions in HVAC Systems
Symptoms: Inconsistent temperatures, HVAC system not turning on/off, or incorrect temperature readings.
Causes: Faulty wiring, dead batteries, or outdated models can cause thermostats to malfunction.
Preventive Measures: Regularly check the thermostat’s settings and batteries. Upgrade old thermostats to a programmable or smart version for better control and energy efficiency.
3) Refrigerant Leaks in Air Conditioners
Symptoms: Poor cooling, hissing noises, and ice buildup on refrigerant lines.
Causes: Corrosion of metal parts, improper installation, or wear and tear can lead to refrigerant leaks.
Preventive Measures: Schedule regular professional maintenance to inspect refrigerant levels and line integrity. Promptly address any leaks to prevent system damage.
4) Clogged Condensate Lines and HVAC Drainage Issues
Symptoms: Water leaks around the HVAC unit, musty odors, and increased humidity indoors.
Causes: Clogged drain lines or pans and algae growth can impede proper drainage.
Preventive Measures: Clean the condensate drain line with a bleach solution at least once a year. Ensure the line is free from blockages and the drainage pan is clean and aligned.
5) Electrical Failures in HVAC Units and Furnaces
Symptoms: System not starting, frequent cycling, and erratic operation.
Causes: Corrosion of wires and terminals or wear and tear from frequent system cycling.
Preventive Measures: Inspect electrical components during routine maintenance. Ensure that connections are tight and free of corrosion. Consider installing surge protectors to safeguard the system from power surges.
HVAC Maintenance Plans for Connecticut Homeowners by Trusted Technicians
If you’re ready to invest in a maintenance program for your HVAC system, Air Temp Mechanical Services offers four different contracts to meet your service needs. Call (860) 953-8888 to speak with one of our team members about your maintenance program options.
FAQ About Common HVAC Issues
What is the most common problem with HVAC?
One of the most common HVAC problems homeowners face is dirty filters. Over time, air filters can clog with dust and debris, reducing airflow and causing the HVAC system to work harder. This can lead to higher energy bills and poor indoor air quality. Regular HVAC maintenance helps prevent this issue.
What does HVAC stand for?
HVAC stands for heating, ventilation, and air conditioning. It includes systems like furnaces, air conditioners, air handlers, and ductwork that regulate indoor climate and air quality in homes and commercial spaces.
What are the most common HVAC repairs?
Common HVAC repairs include fixing thermostat issues, replacing blowers, repairing refrigerant leaks, clearing clogged condensate drain lines, and resolving electrical problems like faulty breakers or capacitors. These problems can develop over time without regular inspections.
How do I reset my HVAC system?
To reset your HVAC system, first turn off the system using the thermostat. Then locate the breaker panel, switch off the breaker connected to your HVAC unit, wait about 30 seconds, and turn it back on. Finally, turn the thermostat back on. If the issue persists, contact a professional HVAC technician.
What is the average life of a HVAC unit?
The average lifespan of an HVAC unit is 15 to 20 years, depending on the quality of the system and how well it’s maintained. Routine checkups, clean coils, and timely repairs can help prevent premature breakdowns and extend the unit’s life.
What is the most common problem with the cooling system?
The most common issue in an air conditioning system is a refrigerant leak or low refrigerant levels. This can reduce cooling capacity and cause warm air to blow through the vents. It’s also common for condenser coils to get dirty or drain lines to clog, leading to poor performance and water leaks.