The 10 most common HVAC problems
When your HVAC system stops working, there is rarely an obvious reason. That’s why we have put together this list of the 10 most common HVAC problems. Enjoy.
Capacitors: In an HVAC system, capacitors are used to assist in the starting of different components throughout the machine (fans, motors etc.). Their capabilities are measured in capacitance by the unit “micro farads”. There will be a range that your capacitor must be operating within to remain effective and if it doesn’t meet those standards when checked by a licensed technician, it must be replaced.
Contactors: Contactors are used to start compressors and motors within your HVAC systems. Over time, especially if they are being misused, there will be pitting (eating away of the contactor) or carbon buildup on the device that will require it to be replaced.
Fuses and Breakers: Air conditioners and furnaces often utilize blown fuses or tripped breakers as protection mechanisms. If your system is being overworked, it can overheat or cause other serious damage. You can often fix the problem by simply replacing the fuse or resetting the breaker. But other times, these could be signs of larger issues. Regular maintenance will help catch these problems.
Thermostat: Your thermostat acts as a control panel for your entire HVAC system. You use it to set the perfect comfortable temperature, and switch from heating to cooling, etc. At times, thermostats could accidently be turned off, set improperly, or even malfunction. You may need to adjust it or replace it altogether.
Filter: Filters are somewhat self-explanatory. Their main purpose is to filter out unwanted particles from the blower fan, providing you with improved air quality in your home. A filter can become a problem when it is either dirty or too restrictive. Find everything you need to know about cleaning or replacing your filter here.
Gas Valve: This is only applicable to heating appliances. Gas valves are used to regulate the amount of fuel used to run your heating system in the winter time. If there is corrosion or a problem with the connection on your gas valve, your furnace could potentially stop working. Call a service technician to have it replaced.
Refrigerant Leak: There is a specific charge (amount) of refrigerant needed for each machine and you should call an A1 technician immediately to repair the leak or replace the refrigerant system all together.
Compressor: A compressor is a very integral part of the cooling process in your air conditioner. It compresses the refrigerant to a higher pressure and temperature so that it may be cooled again through the condenser. Compressors often have problems because of other issues in the system, such as incorrect charge (amount) in refrigerant, which can cause the compressor to overheat or freeze. Call a service technician to diagnose your compressor.
Coils: There are two types of coils, condenser coils and evaporator coils. They should both be cleaned. How often depends on where they are located in your particular system. Ask a certified technician about cleaning these to find out how and when to do so.
Nothing at all: There are a couple of simple things that can happen every year that may give you the idea that your furnace needs to be serviced. Sometimes that is not the case. Read our guide of what to do before calling a service technician to avoid unnecessary costs.
Many of these problems are better served if they are discovered early. If they go untreated, they may lead to more serious problems. The best way to make yourself aware of potential issues with your HVAC system is to schedule regular maintenance.
Prepare yourself and schedule a service call today!