7 Most Common HVAC Problems

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The HVAC system is one of the most important components of any modern building. It is responsible for heating, ventilation, and air conditioning. However, like any other machine, HVAC systems can encounter problems from time to time. 

In this article, we'll take a look at the 7 most common HVAC problems that homeowners and building owners face. 

Ignition Problems

Ignition issues in a furnace can have a variety of causes. Contaminants on the pilot light, flame sensor, or burners can lead to frequent cycling,  pilot shutoff, furnace lockout, or delayed burner ignition. These problems could also be caused by a lack of gas supply or simply from the natural wear and tear of ignition components like the hot surface ignitor or thermocouple that require replacement. To ensure the safe and efficient resolution of these issues, it is advisable to seek the assistance of a skilled service technician. 

Thermostat Problems

Another common problem is a faulty thermostat. A thermostat that is not calibrated correctly can result in incorrect temperature readings and can cause your heating or cooling system to run inefficiently. If you think your thermostat may be the problem, consider replacing it with a newer, digital model.

Frozen Components

As winter sets in, with it, comes the risk of frozen water inside your coils and lines. Remember, water expands when it freezes and if left unchecked, it can lead to the bursting of the lines or coils. If you suspect that any part of your heating and cooling system is frozen, don't hesitate to reach out to an HVAC repair service for prompt assistance.

Water Leaks

Your HVAC system generates a significant amount of moisture as a byproduct of its operation. For instance, air conditioners produce condensate, which is channeled through drain pipes and away from your home. However, if the drain system becomes clogged or damaged, it can result in leaks. Potential leak sources include the evaporator drain, heat exchanger, and collector box.

It's important to address this common HVAC issue promptly, as unchecked water buildup can lead to mold growth, cause structural damage, and pose a risk of electrical damage. 

Dirty Evaporator Coils

The indoor evaporator coil is prone to collecting dirt, especially if the furnace filter is not replaced regularly. A dirty evaporator coil can have a negative impact on the performance of both your furnace and air conditioner, causing them to work harder than necessary. If the coil is extremely dirty, it should be cleaned by a professional service technician to restore its efficiency.

Clogged Air Filters

Maintaining the cleanliness of your furnace filter is crucial in preserving the longevity and efficiency of your heating system. When the filter is clogged with dirt and debris, it hinders air circulation and forces the furnace to exert more effort in circulating air throughout your home. This added strain on the blower can result in decreased comfort levels and even cause the furnace to overheat and shut off due to high temperatures. Regularly replacing your filter helps ensure optimal performance and prevents any potential issues.

Unusual Noises

Unexpected and strange noises from your machine can be unsettling, especially if they deviate from the normal sounds it usually makes. This can indicate a problem with the mechanics and could range from a need to replace the motor to requiring repairs or replacements to components within the noisy motor. In any event, it's important to get the issue assessed by a professional as soon as possible.