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 - home's humidity is too high Repair
Frigidaire Central air conditioner - home's humidity is too high
When your Frigidaire central air conditioner is not removing humidity, start with the air filter. A clogged filter restricts airflow, reduces cooling, and can cause the evaporator coil to frost over so the system cannot dehumidify properly. Replace the filter as needed, especially in a dusty home or one with pets. Next, inspect the condenser coils for dirt and debris. Dirty coils cannot release heat efficiently, which makes the compressor work harder and prevents the air conditioner from lowering humidity. If your house is humid with the AC running, the temperature control thermostat may be shutting the system off too soon, leaving it unable to run long enough to remove moisture. A faulty thermistor can also send incorrect temperature readings to the control board, while a defective control board is less common. These checks address common causes of an air conditioner not dehumidifying and home humidity too high with AC on. Turn off power before servicing, and leave live voltage or 240V testing to a qualified technician. Refrigerant or sealed-system repairs require an EPA 608-certified HVAC professional. Enter your model number to find the exact Frigidaire replacement air filter, thermostat, thermistor, or control board for your central air conditioner.
01 - Frigidaire Central Air Conditioner Air Filter
If the air filter is clogged, air cannot flow properly through the air conditioner. This greatly reduces the cooling capacity of the air conditioner. In addition, if the air filter is clogged, the evaporator coils will frost over. Check and replace the air filter at least twice a year, more often in dusty/dirty environments or if there is a pet in the home.
Enter model number to search for the required part specific to your product
Highly Likely
02 - Clogged Air Filter
If the air filter is clogged, air cannot flow properly through the home's venting system. This greatly reduces the cooling capacity of the air conditioner. In addition, if the air filter is clogged, the evaporator coils will frost over and not be able to remove moisture from the air. The air filter should be checked and replaced at least twice a year, more often in dusty/dirty environments. Refer to owner's manual for guidance.
Highly Likely
03 - Condenser Coils are Dirty
The condenser coils dissipate the heat as the refrigerant passes through the coils. If the condenser coils are dirty, they won’t be able to dissipate the heat as effectively. As debris builds up on the coils, the air conditioner will become less efficient, causing the air conditioner to work harder to cool down. If the coils are significantly dirty, the air conditioner will not be able to remove the moisture from the air and maintain the proper temperature, resulting in the compressor running continuously in an attempt to cool the room. Check the condenser coils to determine if they are dirty. Refer to owner's manual for cleaning instructions.
Highly Likely
04 - Frigidaire Central Air Conditioner Temperature Control Thermostat
The temperature control thermostat is a sensor which monitors the temperature of the air and activates a switch to provide power to the fan and compressor when the air temperature drops below a set point. If the thermostat isn’t working properly, the air conditioner may not stay running long enough to remove the moisture in the air and cool properly. To determine if the temperature control thermostat is defective, use a multimeter to test it for continuity. If the thermostat does not have continuity, or is shutting off too soon, replace it. (Note: Some thermostats may also control a heater and, as a result, will have three...
Common
05 - Frigidaire Central Air Conditioner Thermistor
The thermistor is a sensor connected to the control board that detects the temperature of the air. The resistance value of the thermistor changes in conjunction with the air temperature. If the air temperature rises, the resistance value will decrease. To determine if the thermistor is at fault, use a multimeter to test it for continuity. If the thermistor does not have continuity, or if the resistance of the thermistor does not change with a change in temperature, replace the thermistor. (To find specific temperature and resistance values, try checking your user’s manual.)
Less Common
06 - Frigidaire Central Air Conditioner Control Board
The main control board regulates the voltage to the compressor and the fan motor. If the control board fails, some components will not function properly or will not work at all. Control boards are often misdiagnosed; make sure to check more commonly defective parts first before replacing the control board.
Less Common
Frequently Asked Questions
Why is my Frigidaire central air conditioner not removing humidity?
What should I check if my home humidity is too high with the AC on?
Can a dirty condenser coil cause my air conditioner to stop cooling or run constantly?
How do I test the thermostat or thermistor when my Frigidaire AC has poor temperature control?
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