How to Fix a Frozen Air Conditioner in 3 Easy Steps
Step 1: Turn on the blower and turn the air conditioner off
Step 2: Address the Problem
An AC's tendency to freeze up is primarily caused by insufficient ventilation. Here's how to assess the circumstances:
Examine the filter
The issue can be poor airflow through a clogged filter. Every month, or as soon as you see a coating of dust, check and replace the filter.
Unlock any closed supply vents
The supply registers in your home should never close. Airflow over the evaporator coil is reduced when vents are sealed, which could cause it to freeze.
Try to find any obstructed return vents
These normally lack movable louvers, although they can still be blocked by objects like curtains, rugs, or furniture.
Reduced refrigerant
Although ventilation limitations are frequently to blame, your air conditioner may also not have enough refrigerant. It might have Freon® depending on its age. Low refrigerant demands expert assistance from a licensed HVAC technician.
Step 3: Get in touch with an HVAC Professional at HVAC Repair Guide
If there isn't enough ventilation, then your AC may be frozen over by something else. If that's what's going on, defrosting it won't solve the issue. If you don't address the primary problem, the evaporator coil can freeze repeatedly. If you have any of the following issues with your air conditioner, contact an HVAC expert:
Leak of refrigerant
As long as AC units are running, refrigerant shouldn't run out. A leak someplace is indicated by low refrigerant. Only a technician can find the leak, fix it, and give the system the right amount of recharge.
Evaporator coil that is dirty
When dust builds up on the coil, it blocks airflow, which makes it more likely to freeze.
Blown-out blower
If the motor is broken or the fan is out of balance, air may not be able to move across the evaporator coil.