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7 Most Common HVAC Problems That Require Expert Repairs

With some HVAC issues, there are easy fixes to the problem. You can simply clean the coils or change the filters. However, there are times when you will need the help of an expert HVAC company. In some cases, these issues can lead to bigger concerns if you do not service them right away. Most of these issues can be easily avoided with the proper maintenance of your system. You will want to have your system checked on an annual basis to prevent any problems. If you are experiencing these seven HVAC issues, you will need to schedule a service call with a professional HVAC company.

1. Thermostat Malfunctions

With many modern HVAC systems, you will either have a programmable or non-programmable thermostat. Many service calls are related to a bad thermostat, and it can cause your furnace or air conditioning unit to cease operation. In some cases, the thermostat is not properly set or a component has failed in the entire unit. You can change the battery of the thermostat to resolve some issues. These problems might seem like an easy fix, but you need someone with experience to diagnose it in the first place. Some major issues might look like a simple replacement, but they could lead to more expensive repairs for your home. If you are having issues with the thermostat, this component should always be replaced by a technician.

2. Pilot or Ignition Problems

Ignition problems can be an issue for your HVAC system, and there are several reasons for the malfunction. In most cases, these issues can be caused by a lack of maintenance. A dirty flame sensor, pilot, or burner can cause a wide range of issues, including furnace lockout, short cycling, pilot outage, or a delayed ignition of the burners. With some units, it can be the result of normal wear and tear or an issue with the gas supply. When dealing with those problems, you will want to call in a professional for your home. It could be a simple fix like replacing the thermocouple or hot surface ignitor. However, when dealing with gas, you need to be extra cautious and leave it to a technician. Natural gas can lead to dangerous leaks in your house, and high voltage is not something that you should tackle without training. A technician will be able to pinpoint the problem and resolve any issues with your system.

3. Strange Furnace Noises

Noises are a part of the normal operation of your furnace. However, some sounds may be an indication of a severe mechanical problem. If you hear a squealing or whining motor, then it can be a symptom of a mechanical issue like a failing blowing motor or a loose bearing in an inducer motor. You will need to replace the motor to avoid any failure of your furnace. As for other noises, they could be an indication of problems with the burners or airflow. In any case, you never want to ignore strange noises with your HVAC system since they can be a warning sign of a dangerous failure within your unit.

4. Tripped Breakers or Blown Fuses

If your system is constantly shutting off, it may be the result of the blower overworking. When the airflow is blocked in your system, it can cause the blower to work harder to compensate for the lack of air. One of the most common reasons for reducing airflow is a dirty filter. These issues can also increase your blower’s energy consumption, and it will cause the circuit breaker to trip. Before resetting the breaker, you will want to check the filter and replace it with a clean one. If the problem persists, it is best to contact a professional who has the experience to determine the issue with your unit. The problem can be caused by a malfunctioning circuit breaker or another furnace issue. Some other problems can include blocked-off air registers, dirty coils, or duct leaks. With any electrical problems, it is best to leave them in the hands of a trained technician.

5. Dirty Evaporator Coils or Condenser

With regular maintenance, your HVAC system will run efficiently, and it will heat or cool like a new unit. Debris and dirt can clog up your system and reduce its efficiency. In turn, your unit will wear out sooner. You can do a few things around your home to clean the system, including hosing off the outdoor coils. However, if your unit is extremely dirty, you will need to shut off all the power. A professional company will know how to properly clean all of the components of your system. They will check for issues with the evaporator coils and filters. Any dirty part will reduce the efficiency of your unit, and it will cause your energy bills to increase. You can avoid that by scheduling regular maintenance on your HVAC system, as a technician will keep your unit working at the optimal operating level.

6. Blower Always Runs

There are several reasons for your HVAC to be running continuously. You will want to check the fan switch on the thermostat and make sure it is off. If that is not the issue, then you need to schedule an appointment with a technician. A trained professional will pinpoint the reason for the continuous operation of your system. You could have a failing component that is preventing the unit from shutting off.

In some cases, the relay will get stuck and stop the unit from turning off. Within an HVAC system, there are several safety precautions. If these sensors are activated, the circuit may not operate correctly. For those safety components that will not reset, your system will fail to shut off. At this point, you need a trained service technician to evaluate your system and find a solution to the problem.

7. Water Leaks

Your HVAC system produces a lot of condensation. In all homes, drain pipes are used to give your house proper drainage. If the drain lines are cracked or clogged, then you can have some water leakage, including in the furnace. You can help to keep those pipes clean by pouring bleach down the drain. However, leaks can happen in many other places, such as the evaporator drain pan, heat exchanger, or collector box. For those areas, you need the help of a service technician to determine the source of the leak and find ways to repair it.

Quality Heating and Cooling Service in Los Angeles

Since 2006, JW Heating and Air has been providing high-quality HVAC services to residents of Los Angeles, CA. We stick to our core values of integrity, honesty, and accountability on every job. JW Heating and Air is the only company in the area to win the Angie’s List Gold Award. We were even recognized with the Super Service Award in 2018. We can help with your heating and cooling services. In addition to that, we can assist you with indoor air quality tests and duct cleaning. When you need to find a professional HVAC company in Los Angeles, make sure to contact JW Heating and Air today!