Whether you’re turning on your AC system for the first time this season or you’ve been relying on the air conditioning for weeks, you expect a stream of chilled air to flow through your vents. However, there are many reasons why the air might not be as cool as you want and need it to be. Here are the top reasons why your AC is blowing warm air and how you can resolve the problem.
A Dirty Exterior Unit
Your AC system’s exterior unit will get filthy with dirt, leaves, and more over time. This debris creates a clog that causes the system to work harder than it should. As a result, the system isn’t able to efficiently remove warm air from your home. Removing debris and clogs from the exterior unit will resolve this problem.
A Filthy Air Filter
Air filters generally should be cleaned or replaced every one to three months, depending on the manufacturer’s recommendations. When the filter is dirty, airflow is impeded. This strains your air conditioner and eventually impacts how well the system’s hardworking parts perform. Replacing the air filter may alleviate the problem. However, if damage has been done to the AC system’s parts, further repair service is needed.
A Broken Thermostat
Your thermostat controls the temperature inside the home. If it malfunctions or the energy supply to the thermostat is impaired, temperature control is impacted. If your thermostat isn’t responding to adjustments to the temperature settings and it is receiving adequate power, it may be time to replace it.
Leaking Refrigerant
Your air conditioner’s refrigerant serves the important purpose of absorbing heat from the air as it passes over the coils. A common reason why the refrigerant level may be insufficient is a leak. Your HVAC technician can inspect the refrigerant level and identify the presence of a leak. Repairing the leak and topping off the refrigerant level are essential steps to fix the problem.
A Freezing Evaporator Coil
Your AC system’s evaporator coil can freeze for many reasons. These include blocked vents, low refrigerant, fan issues, and dirty filters. The evaporator coil is essential for the cooling process, and it cannot function properly if it’s frozen. While thawing out the coil can provide a short-term fix, the underlying cause should be investigated and addressed by your HVAC technician.
When the temperature outside soars, an AC system that blows warm air is a huge problem. For all of your home’s AC repair needs, call Marshall Services in Skippack, PA today.