Why Does My AC Freeze Up In The Summer?
Airflow, system pressure, and temperature play major roles in the performance of your air conditioner. When issues occur that disrupt this balance, key components can freeze. Our air conditioning contractors see the following top culprits for this:
- Insufficient airflow
Dirty home air filters don’t allow sufficient airflow for your system to perform effectively. This is the most common reason for HVAC system repair – and it’s preventable. We recommend checking your air filter first. If it’s caked with dust and dirt, replace it – especially if it’s been more than 3 months since you last changed it. Turn your system off until it defrosts. Then your system should return to normal operation.
Fan or blower motor malfunction
Constant airflow is essential to prevent humidity from settling (and freezing) on coils. When electrical or mechanical issues lead to fan or blower malfunction, the lack of airflow can quickly lead to a frozen AC unit. To identify and address this situation, you’ll need the help of a pro.
Vent or ductwork blockages
Closing or blocking supply or return ducts with furniture or blockages in ducts can reduce airflow and cause a frozen unit. Clear all return ducts and close no more than 2-3 supply ducts, ensuring free flow of air.
- Low refrigerant pressure
- Clogged drain lines
- Cool summer evenings
Frozen AC system leaving you all hot and bothered? Get it repaired in a flash. Contact H & H Heating & Air Conditioning to schedule air conditioning repair and maintenance today.
This blog was originally posted on https://www.delcohvac.com/blog/ac-unit-freezing-up-in-summer-yes-it-happens/