The Most Common HVAC Problems and How to Fix Them

Common HVAC Problems: Solutions for Every Issue

Discover common HVAC problems and solutions. Fix residential and commercial HVAC issues, including cooling, maintenance, and more.

The life expectancy and effectiveness of your HVAC system depend on maintenance, especially during severe weather when it is working nonstop. HVAC systems might experience problems over time even with careful maintenance. 

The upkeep of HVAC systems is crucial for maintaining the comfort and security of your home. An immediate fix and regular check-ups can avoid most such common situations. With time, even when well maintained, HVAC systems fail, particularly during extreme weather patterns. 

This article will delve into the most common problems with HVAC systems involving air conditioners, furnaces as well ductwork while offering solutions for maintaining a smoothly functioning system. 

Knowing the symptoms can help you avoid wasting time, and money, or feeling anxious, particularly if there is a complex issue that requires professional attention or a quick resolution.

Top 10 Most Common HVAC Problems and Solutions

Let us take you to the 10 most common HVAC issues you wouldn’t know disturbs you. Not only that but we have their solution too so stick with us.

Unwashed Filters

Dirty filters are one of the most common HVAC issues that can be easily fixed. When filters become clogged with dirt and other debris, they hinder the flow of air, causing the heater to work harder than necessary to maintain the proper temperature.

This may lead to overheating, premature wear, and lower efficiency. To keep your HVAC system running smoothly, you should replace the filter regularly; thus, examine your boiler handbook to ensure you purchase the correct filter.

Solution:

  • Frequency: Replace filters every 1-3 months based on usage and surrounding air quality.
  • Steps: Refer to the instructions to determine the appropriate filter size and type, then remove the old filter and replace it.
  • Tip: To avoid putting additional load on your system, set reminders to replace filters regularly.

Filthy Ductworks

Ductworks clogged with debris, dust, and other particles are another most common commercial HVAC issue and residential HVAC problems, which can lower the quality of indoor air by dispersing allergens throughout the house and making respiratory conditions worse for people with asthma or allergies.

Solution:

  • Frequent cleaning: Either do it yourself or contact a technician to clean the tanks once a week.
  • Inspection tools: Locate and target specific locations that require repair by using inspection video cameras.
  • Expert Assistance: For comprehensive ductwork upkeep, take into consideration hiring a cleaning professional.

Furnace Ignition and Pilot Light Issues

If your furnace’s ignition system fails, it may not ignite. Pilot lights, flame sensors, and burners can all malfunction. Addressing these concerns as soon as possible is essential for ensuring that your furnace performs efficiently and safely.

Solution: 

  • Professional Diagnosis: Contact an HVAC expert for safe diagnosis and repair of furnace ignition issues.
  • Regular Maintenance: Schedule routine maintenance to ensure all furnace components are functioning correctly and efficiently.

Broken Thermostat

A broken thermostat can cause major difficulties with your furnace, including heating malfunctions or complete system failure. Depleted batteries, incorrect settings, or inherent defects in the thermostat system are major reasons for this issue.

Solution:

  • Check Batteries: To ensure that your thermostat operates reliably, replace the batteries regularly.
  • Adjust Settings: Make sure your thermostat is set to the appropriate temperature and operating mode (heat, cool, or fan).
  • System Diagnosis: If troubleshooting fails, contact an HVAC specialist to diagnose and repair any internal defects in the thermostat.

Blown Fuses And Tripped Breakers

Excessively unclean filters are generally the cause of an overworked furnace, which frequently results in blown fuses and tripped breakers. If these electrical disturbances are not fixed right away, they may result in frequent power outages and possibly even damage to the furnace.

Solution:

  • Reset Breakers or Replace Fuses: Turn the breaker off and back on to safely reset it. If you’re using fuses, swap out any blown ones for new ones that have the right rating.
  • Address Overloads: Reducing the electrical load on the circuit by unplugging appliances or gadgets that might be the source of the overload is one way to address overloads.
  • Examine HVAC System: See an HVAC specialist if symptoms continue so they can identify and fix any underlying causes.

Defiled Condenser or Evaporator Coils

The efficiency of condenser or evaporator coils is greatly decreased when they are unclean or defiled, which results in less effective heating and cooling. 

A dirty condenser or evaporator coils can severely impair the efficiency of your HVAC system, resulting in decreased heating and cooling effectiveness and potentially higher energy costs.

Solutions:

  • Cleaning Outdoor Coils: To clean outdoor coils, turn off the electricity and wash them with a hose to remove any dirt.
  • Professional Cleaning: If your coils are severely dirty, you should get them serviced by professionals. Regular cleaning keeps filth from building on them.

Water Leaks from the Unit

When condensation is not correctly routed to drain pipes or when there are obstructions in the drainage system, the HVAC unit may leak water. This may result in water collecting around the device, which could harm nearby components and environments. It’s critical to respond quickly to these leaks.

Solution:

  • Drain Maintenance: Pouring bleach down these pipes is effective in keeping them free from any clogs.
  • Professional Help: To know what precisely causes leaks and fix them, consult an expert who will help you to solve this problem once and for all.

Uneven Room Temperatures

Poorly built or incorrectly regulated ducting inside the HVAC system is commonly the cause of uneven room temperatures. This can result in uncomfortable and inefficient heating or cooling distribution in specific regions of your home, regardless of the thermostat settings.

Solution:

  • Ductwork Adjustment: Inspection and adjustment by an expert can ensure even distribution of air through your ducts.
  • Insulation and Blinds: Enhance room insulation by using blinds that block out sunlight rays hence maintaining uniformity of temperature within the rooms.

Negative pressure

Uneven airflow and drafts throughout the house, which lowers indoor air quality and lowers occupant comfort levels, are other discomfort-inducing effects of negative pressure.

Solution:

Balanced Ventilation: Make sure the systems in your house are balanced so that there is a constant flow of air entering and leaving, avoiding the formation of negative pressure.

Close Leaks: To lessen the amount of unfiltered air that enters a space and support the maintenance of interior air pressure, close any gaps or leaks surrounding windows, doors, and ducting.

Diagnostic Staff: Have a technician assess and fix the problem, which may include adjusting fan speed or closing cracks in the vent.

Water absorption

Leaky faucets absorb water, which not only makes your HVAC system work harder and results in less comfort and higher energy bills, but if left unchecked, may also harm nearby homes and promote the formation of fungus.

Solutions:

  • Monitor and Maintain: To prevent long-term problems with water absorption, periodically check the plumbing around your house for leaks and fix them as soon as you find them.
  • Enhance Drainage: Make sure the area around the foundation of your house has adequate drainage to avoid water collecting near HVAC units, which can worsen absorption issues.
  • Consult a Professional: See a skilled HVAC technician to evaluate the situation and suggest necessary repairs or modifications if water absorption problems continue or result in major HVAC inefficiencies.

Some Preventive Measures For HVAC Most common problems

Here are essential preventive measures to ensure your HVAC system operates smoothly and efficiently:

Regular Maintenance

  • To maintain the best possible condition for your system, schedule bi-annual HVAC maintenance appointments before the heating and cooling seasons.
  •  To keep minor faults from becoming larger ones that could compromise your comfort, a technician will clean, calibrate, and lubricate essential components during maintenance.

Timely Repairs

  • Take quick action to address little problems, including odd noises or leaks, to stop them from eventually causing more serious harm.
  • Prompt repairs and routine maintenance make your HVAC equipment last longer and use less energy.

By implementing these proactive solutions and preventive measures, you can effectively manage common problems with HVAC systems, whether residential or commercial. This approach ensures your HVAC system maintains efficiency, providing consistent comfort in your home or business year-round. 

Keep Your AC Unit Well-Maintained with Professional HVAC Maintenance

As mentioned earlier, not all HVAC problems are challenging to solve. To avoid these pitfalls you need to do some recommended routine maintenance. Most of the chores like changing an air filter are simple and can be accomplished in no time, making it a DIY chore.

But any other problem should ideally be addressed by an HVAC technician because it is a complex and technical area that demands specific tools in its handling.

One should not overlook the importance of having periodic checkups of your home’s HVAC systems by professionals. At Best Home Service, we boast value-based skills in HVAC repair and have the knowledge needed to ascertain and correct problems before they worsen. If you are in Pennsylvania and the surrounding areas, you can count on our HVAC Contractors for the best service.

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