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Why Does My A/C Unit Keep Freezing?
Posted On: April 4, 2023
Question from user Topher1326 at AirConditioners at reddit.
Answer:
If your A/C unit keeps freezing, there are a few possible reasons why this may be happening:
Dirty air filter: A dirty air filter can restrict airflow over the evaporator coil, causing it to freeze.
Check the air filter and replace it if it's dirty.
Low refrigerant levels: If your A/C unit is low on refrigerant, it can cause the evaporator coil to freeze.
This is often a sign of a leak, and a professional technician should be called to repair the leak and recharge the refrigerant.
Thermostat issues: If your thermostat is not working properly, it may be causing your A/C unit to run too long, which can result in the evaporator coil freezing.
Check the thermostat settings and make sure it's functioning properly.
Dirty evaporator coil: If the evaporator coil is dirty or clogged, it can restrict airflow and cause the coil to freeze.
A professional technician can clean the coil and restore proper airflow.
Fan problems: If the fan motor or blades are not working properly, it can cause the evaporator coil to freeze.
A technician can inspect the fan and repair or replace any damaged parts.
If you've tried these troubleshooting steps and your A/C unit is still freezing up, it's best to call a professional technician to diagnose and repair the problem.
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