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HomeRepair HelpBryant Central A/C RepairBryant Central air conditioner - home's humidity is too high Repair
Bryant Central air conditioner - home's humidity is too high
When a Bryant central air conditioner is not removing humidity, the most likely cause is a clogged air filter. Restricted airflow can cause the evaporator coil to frost over, preventing the system from dehumidifying your home. Replace the Bryant air filter at least twice a year, more often in dusty homes or homes with pets. Next, check for dirty condenser coils. Debris prevents the coils from releasing heat, so the central air conditioner works harder, may run continuously, and leaves the house humid with AC running. A faulty temperature control thermostat is another common cause because it may shut the system off before it runs long enough to remove moisture. Less commonly, a defective thermistor or control board can misread temperature or stop the compressor and fan motor too soon. These checks can help when your AC is not dehumidifying or you have home humidity too high with AC on. Turn off power before servicing, and have a qualified HVAC technician handle 240V components or any sealed-system repair involving refrigerant. Enter your Bryant central air conditioner model number to find the exact replacement air filter, thermostat, thermistor, or control board for your unit.
01 - Bryant 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.
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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 - Bryant 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 - Bryant 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 - Bryant 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 Bryant central air conditioner not removing humidity?
Can a clogged air filter make my home humid with the AC running?
Can dirty condenser coils cause an air conditioner to run constantly and not dehumidify?
How do I test a Bryant AC thermostat or thermistor when humidity is too high?
How do I identify and buy the correct Bryant central air conditioner part?
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