Unlock the Right Part
for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.
Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeChoose Product
Identify Problem
03
Find Solutions
HomeRepair HelpFrigidaire Central A/C RepairFrigidaire Central air conditioner coil icing up Repair
Frigidaire Central air conditioner coil icing up
When your Frigidaire central air conditioner has an evaporator coil frozen, the system may show ac coil freezing up, air conditioner freezing up, or ac icing over. The most likely cause is an open humidifier damper, which allows air to bypass the evaporator coil. Set the damper to summer mode or close it. Next, check the blower motor in the furnace or air handler, since a failed motor can stop the airflow needed to prevent freezing. A clogged or damaged blower wheel and housing can also restrict airflow, while a failed run capacitor or blower capacitor may keep the motor from running. Clean the blower wheel carefully, and replace defective components as needed. A faulty thermal expansion valve, or TXV, can also cause improper refrigerant flow and coil icing. Enter your model number to find the exact replacement part for your Frigidaire central air conditioner. Turn off power before inspecting components, and treat electrical testing or capacitor replacement as a serious hazard. TXV, refrigerant, and any repair inside the sealed system require an EPA 608-certified, licensed HVAC technician. A technician should also handle line-voltage work beyond your DIY experience.
01 - Humidifier Damper is Open
An open humidifier damper will let air bypass the evaporator coil. This loss of air flow can cause the evaporator coil to freeze up. If you have a humidifier on your furnace or air handler, confirm the humidifer damper is in the "summer mode" or closed position.
Highly Likely
02 - Frigidaire Central Air Conditioner Blower Motor
Since the furnace or air handler blower motor is the component that circulates the air through unit to cool it, a defective blower motor could result in the evaporator coil icing up. You can use a multimeter to test the blower motor for electrical continuity, a continuous electrical path present in the motor, as well as determine if power is reaching the motor. You can also try turning the blower wheel by hand. If the wheel does not turn freely, it's likely the motor bearings have seized and the blower motor will need to be replaced.
Enter model number to search for the required part specific to your product
Highly Likely
03 - Frigidaire Central Air Conditioner Blower Wheel and Housing
Over time the blower wheel and housing can become clogged with dust and debris. This will restrict the air flow which could result in the evaporator coil icing up. You can try cleaning the blower wheel with compressed air or with a soft bristle brush. Use caution when trying to clean the blower wheel as the fins are sharp and can be easily damaged. If the blower is damaged it will need to be replaced.
Common
04 - Frigidaire Central Air Conditioner Run Capacitor
If the run capacitor is defective, the blower fan motor may fail to run which could result in the evaporator coil icing up. To determine if the run capacitor has failed, test the capacitor with a multimeter. If the capacitor is unable to hold and release a charge or is bulging or leaking, replace it.
Common
05 - Frigidaire Central Air Conditioner Capacitor
If the capacitor is defective, the blower fan motor may fail to run which could result in the evaporator coil icing up. To determine if the capacitor has failed, test the capacitor with a multimeter. If the capacitor is unable to hold and release a charge or is bulging or leaking, replace it.
Common
06 - Frigidaire Central Air Conditioner Thermal Expansion Valve
A thermal expansion valve, commonly referred to as a TXV, regulates the amount of refrigerant in the evaporator coil to help maintain an optimal working temperature.
Common
Frequently Asked Questions
Why is my Frigidaire central AC coil freezing up?
How do I troubleshoot a blower motor when my AC coil is icing over?
Can a bad capacitor cause my air conditioner to freeze up?
What should I do if my AC coil keeps freezing after cleaning the blower?
How do I find the correct Frigidaire central air conditioner part for this repair?
Shop by Frigidaire Central Air Conditioner Parts
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com