Air conditioners are complex machines with multiple components, including blower fans. What does the fan do on an AC unit? This is a great question because although each part has a specific purpose, a malfunctioning fan causes serious problems for cooling systems.
Blower fan malfunctions are a surprisingly common reason to call for professional AC services in Medina, WA. Here’s why this essential air conditioner component is important and how to optimize its performance.
How Many Fans Does an Air Conditioner Have?
What does the fan do on an AC unit? First, you need to know that typical air conditioning systems have two blower fans: one in the indoor air handler and another in the outdoor condenser unit.
The indoor fan draws in warm air from inside a property to blow over the evaporator coil. The outdoor fan then helps dissipate heat from the refrigerant, leaving only cool air. Without the fans moving the air to the right outlet, cooling can’t happen effectively.
How Do Air Conditioning Fans Work To Cool a Space?
The cooling process relies on refrigerant to absorb heat and moisture from indoor air. The refrigerant flows through the evaporator coil to the condenser coil outside in a closed loop.
When the AC fan motor inside the air handler turns on, the fan brings all the warm indoor air your unit has collected over the evaporator coil. The refrigerant absorbs the heat and turns into a gas. When the outdoor condenser fan blows cool air over the heated refrigerant, it disperses this heat and allows the chemical to cool back into liquid form.
Once cool, the refrigerant flows back to the indoor coil section. In the meantime, the air handler’s blower fan sends the cooled air into the system’s ductwork, dropping your home’s indoor temperature as per your required settings.
Ideal Settings for Medina Air Conditioning Fans
What does the fan do on an AC unit? Now that you know part of the answer, you may wonder how to optimize its performance for the comfort of your home. All air conditioners in Medina use fans, including:
- Central air conditioners
- Packaged air conditioning
- Ductless models
- Mini-split systems
Optimization starts with your thermostat settings, which for air conditioner fans is commonly “on” and “auto.” “On” allows for continuous cooling operation.
“Auto” makes the fan run while the cooling system is producing conditioned air, but shuts off once the house reaches the set temperature. Your system should operate at peak efficiency without overconsuming energy, which reflects improved HVAC efficiency.
Alternatively, select “Fan” mode to run your cooling system fans without the compressor. This mode should circulate already conditioned air evenly and continuously maintain comfortable spaces, but may increase energy consumption to result in higher utility costs.
Other Modes for Your Cooling System Fans
Take a look at the thermostat for your Medina home. Do you see other options or settings? Here’s how the most common modes impact your fan’s operation:
- Sleep mode: Conserves energy by gradually raising thermostat temperatures overnight, and minimizes noise by reducing the fan’s speed.
- Dry mode: Operates at a slower speed, reducing excess moisture from indoor air.
- Energy saver mode: Engages a power saver mode so that the air conditioner shuts down its compressor and fan once your home reaches a set temperature.
Tips for Ensuring Your Equipment’s Performance
What does the fan do on an AC unit? That depends on what mode you choose, but the fan’s primary role is moving air. If you want to optimize the performance of your air conditioner, consider these tips for making the most of its blower fans:
Schedule Air Conditioner Tune-Ups
Every year, preferably in the spring, schedule maintenance. Local Medina HVAC technicians can inspect, clean, repair, and calibrate your cooling unit.
Replace the Air Filter Regularly
Dirty filters can restrict airflow. Change or clean this component every one to three months to prevent blockages.
Keep the Condenser Unit Clear
Airflow restrictions inhibit HVAC performance. Keep at least two feet of clearance around your outdoor unit.
Keep Your Air Conditioner Fans Running Smoothly With DEAR Services in Medina, Washington
What does the fan do on an AC unit? Air circulation facilitates the heat exchange process that keeps homes cool and comfortable.
At DEAR Services, we provide comprehensive heating and cooling services throughout the community, including cooling repairs and replacements. Our licensed technicians recognize the benefits of an AC tune-up, so we also maintain air conditioners in Medina, Washington. If your air conditioner’s fan or motor is failing, contact us today for a quick resolution!