Why Your HVAC System Isn’t Working As Well As It Should

Your HVAC system sends temperature-regulated air through ductwork into different areas of your home. The blower of an electric HVAC unit runs on propane, oil, or natural gas to heat the furnace.

Vents (or registers) are found in the ceiling or on the floor of each room. If you can, keep them open to ensure that air circulation is properly distributed throughout your home.


A thermostat is among the most crucial components of your HVAC system. It regulates the temperature of your home by switching on and off the fan and compressor to reach a preset temperature. It also activates the exchanger to pull fresh air from outside your home, and to vent old air through your ductwork.

The majority of thermostats are digital however, some older models exist. Digital thermostats use the thermistor device which is made up of metals that alter the electrical resistance when changes in temperature. The thermistor is connected to an electronic microcontroller, which converts the changing resistance into a temperature reading. Thermostats are available in a variety of options including programmable and intelligent thermostats that let you monitor your home’s energy consumption and make adjustments.

Thermostats are installed on the interior walls of your house, typically in rooms where they are used the most. The place of a thermostat within your home could affect its accuracy. A thermostat located in direct sunlight, for instance, may show an upper temperature than the actual temperature of the room. This can cause your system to operate more or less. If your thermostat isn’t working correctly, try resetting it but if that doesn’t fix the problem it is recommended to contact an AC technician for assistance.

If you’re thinking of replacing your thermostat, check out the different options available to you and think about a thermostat that is programmable to help save money on your energy bills. A thermostat that can be programmed will automatically adjust the temperature of your home to your preferences, rather than having to manually adjust your HVAC system each day. It’s also worth a look to determine if you can locate an alternative that will provide you with even greater energy savings, like an energy-efficient or ENERGY STAR-certified thermostat.


If your air conditioner isn’t working as efficiently as it ought to one of the most frequent causes is your condenser. The condenser is made up of many different parts that all need to be working in sync for the unit to function. The entire system may be affected when any of these components are damaged or worn out. The most common problems found in the condenser include a malfunctioning control board or refrigerant leaks.

The refrigerant gas that is produced by the compressor is pumped into the condenser, where fans blow cool outside air over the coils. This allows the refrigerant gas cooling and to return to liquid form. This low-pressure liquid is then chilled and then moved back into the evaporator to continue the cooling process. The process is repeated until the temperature you want in your business or home is reached.

To ensure that your condenser is operating correctly, you must ensure that the area surrounding it is clear of debris. Leaves, twigs, flowers grass and other debris could be sucked into the unit by the condenser fan. This can create clogs that hinder the operation of the cooling system. It’s also a good idea to keep trees and shrubs cut back so that they don’t get in the way of the unit. This can reduce the possibility that berries, branches, or even nuts fall and clog the system. Keep your condenser clean to prolong the life of your AC by a minimum of 1-2 years.


The evaporator is the component that allows warm air to enter your home. It is comprised of a series of u-shaped tubes, which are then set into panels. The air from the blower fan is blown across these coils. This draws heat from the indoor air and then transfers it to the refrigerant. The liquid refrigerant becomes an air-borne gas that is circulated through the cooling system to cool your air.

The thermodynamics law states that heat flows from colder objects to warmer ones. If the evaporator operates correctly, the energy passes from the warm air to the refrigerant that is colder. This causes the refrigerant to vaporize or boil. During this process the latent heat (which is not measurable with a thermometer) is transferred from air to refrigerant.

These coils are designed with specialized structures that improve the transfer of heat. Fins are used to increase the surface area of the coils. Some evaporators are built using copper, while others are made of aluminum, with each material providing its own set advantages.

A evaporator with a buildup of organic growth can be prone to problems. This can be a result of mildew or mold. If this happens, the bacterium may produce a sour smell that spreads throughout the home. This could cause discomfort.

To avoid these issues, it’s essential to select an evaporator that can be easily cleaned and maintained. When selecting an evaporator it is important to also consider the working environment. Some are designed to withstand harsh conditions, while others are suited to moderate environments. Lastly, you will want to ensure that your evaporator comes with a solid warranty to protect your investment.


Your HVAC system’s blower motor works to circulate the hot or cold air throughout your home until the thermostat you set is attained. The fan can be set to auto or constant. We recommend keeping the fan on constant to maximize efficiency and reduce your electricity bills. We can replace the fan motor when it is running continuously. The new ECM motor is 70 percent more energy efficient than the old PSC motors. It will pay for itself over the lifetime of the unit.

If your fan only runs on high, a short circuit or a malfunctioning relay could be preventing the thermostat settings from reaching the fan.


The air passes through the filter, before being warmed or cooled and circulated around the house. It removes impurities, and also stops dust and pet dander getting into the system, causing contamination to internal components. It shields the family from illnesses spread by airborne pathogens. It also ensures that the system functions efficiently. A dirty filter can make the system work harder and may cause it overheat or to fail.

Homeowners should change their filters regularly. The label will inform them if they should do it every 30 days or every 90 days. The homeowner should consult an HVAC professional when they aren’t sure about the kind of filter they need. A professional can assist homeowners select the best filter for their home depending on factors such as the climate, the frequency they use their system, and even personal factors such as whether there are allergy sufferers in the home.

The filter is situated in the return air duct, or in some cases the blower compartment, of the furnace. The return air duct can be found on the floor, wall or ceiling, or in a utility closet, and it usually has a large, metal grate which covers the filter. The filter should be easily accessible for homeowners and service technicians in order to facilitate cleaning and replacement.

Filters are rated by the MERV (Minimum Efficiency Reporting Value) rating, which shows how effective they are at taking in different sizes of particles. A low-MERV filter is able to capture larger contaminants such as pet dander and dust mites but isn’t very effective in capturing fine allergens or germs. High-MERV filter can capture various contaminants without affecting the normal flow of air.

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