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Why My AC Doesn’t Cool?

Air conditioners come in various sizes and shapes, but they all function in the same way. They provide cold air inside an enclosed space and transfer the unwanted humidity and heat outside. A standard AC uses a specialized chemical known as a refrigerant and three main mechanical components that include a compressor, an evaporating coil, and a condenser coil. These three components of an AC work together to swiftly transform the refrigerant from gas to liquid and then back again.

The work of the compressor is to raise the temperature of the refrigerant and then send it to the condenser coil, where it turns into a liquid. The refrigerant travels back indoors through the evaporator coil, where it evaporates and cools the indoor coil. The heat from the indoor spaces is absorbed by the refrigerant when a fan blows it on the cold evaporator coil. The heat is released into the outdoor air and the refrigerant turns into a liquid state, and the cycle continues until the indoor spaces reach the desired temperature.

What Are The Reasons Why My AC Doesn’t Cool?

1. Dirty Air Filter
The filter of your AC catches dust, dirt, and other airborne debris as they go into the air handler unit. A dirty air filter can reduce the cooling of your home since it blocks the airflow. In extreme cases, it can cause the system to overheat and shut down since it is meant to keep the components in the system clean.

2. Blocked Condenser Unit
If the condenser coil is blocked or clogged, then your AC will not efficiently cool the indoor spaces. The AC will be running, but not lowering the indoor temperatures. Dirt, grass, or other airborne debris can build up in the fins of your outdoor condenser and clog the coil.

3. Damaged Heat Pump
The outdoor unit in some homes might be a heat pump that looks just like an AC unit. Its cooling operation works just like that of a normal AC system, thus it is subject to similar issues such as frozen coil, dirty coil, clogged coil, refrigerant leaks, thermostat settings, and compressor malfunctions.

4. Refrigerant Leak
If the refrigerant leaks from your system, then the unit might stop blowing cold air. Depending on the severity, the system might have to run for longer periods without sufficiently cooling your home.

5. Faulty Thermostat
The work of a thermostat is to sense the room temperature and nudge the compressor to either start or stop the cooling cycle. A faulty thermostat may cause the AC unit to cool continuously or not cool at all.

If your AC has an issue, then the Aire One Heating and Cooling services in Toronto is the best partner to call for reliable support. We have the best team of seasoned technicians who will provide you with a lasting and cost-efficient solution. Contact us today for a consultation, installation, maintenance, and repair!

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