Bryant Central air conditioner not cooling properly
When your Bryant central air conditioner is not cooling properly, start with the furnace main control board, which may fail to send 24 volts to the condensing unit contactor or power to the blower motor. Next, check for an airflow problem: a clogged air filter or blower wheel can restrict air, cause the evaporator coil to freeze, and leave your central air not cooling or air conditioner blowing warm air. A defective contactor can keep the condensing unit from receiving power, while a failed dual run capacitor can make the condenser fan motor noisy, overheated, or unable to run. If airflow is good, the evaporator and condenser coils are clean, and the blower, fan, and compressor operate but the AC is still not cold, a refrigerant leak or restriction in the sealed system may be responsible. A faulty relay board can also prevent the blower motor from receiving power. You can safely inspect the air filter and registers, but testing or replacing a contactor, capacitor, control board, or relay board involves hazardous voltage and may require a qualified technician. Refrigerant and sealed-system repairs require EPA 608 certification. Enter your Bryant model number to find the exact replacement part for your specific central air conditioner.
01 - Bryant Central Air Conditioner Main Control Board
If the central air condensing unit contactor is not receiving 24 volts or power is not getting to the furnace blower motor, a possible cause is a defective furnace main control board. While this is not a common problem, if all other potentially faulty components are working properly, the main control board should be replaced.
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Proper air flow is critical for the central air conditioner to work properly. The evaporator needs proper air flow to keep the condensing water from freezing. If the air filter or blower wheel gets clogged, ice can start forming on the evaporator coils, eventually freezing them up and preventing proper air flow. It is recommended to replace the air filter at least every 6 months or sooner depending on the conditions. Refer to owner's manual for guidance. Avoid covering registers with furniture, rugs, or other items that will restrict the air flow.
Top Solution
03 - Bryant Central Air Conditioner Contactor
The furnace control board sends a low voltage signal to the contactor. When the contactor receives the signal from the control board, it closes the circuit, sending voltage to the condensing unit components. If the contactor is defective, it will not provide voltage to the condensing unit. To determine if the contactor is at fault, use a multimeter to test the contactor for continuity. If the contactor does not have continuity, replace it.
04 - Bryant Central Air Conditioner Dual Run Capacitor
If the dual run capacitor is defective, the fan motor might be noisy, overheat, or not run at all. To determine if the dual run capacitor has failed, inspect the capacitor. If the dual run capacitor is bulging or leaking, replace it.
If the unit has good air flow, the evaporator and condensing unit coils are clean, the fan and compressor are running, and the furnace blower is on, but there is still not enough cooling, it is likely there is a leak or restriction in the sealed system. Since diagnosing and repairing a sealed system takes specialized tools and knowledge, a qualified service technician should diagnosis and repair the unit.
Highly Likely
06 - Bryant Central Air Conditioner Relay Board
A relay board is often used to control components of an a central air condidtioner. If the blower motor is not receiving power, the relay board is likely the cause. A defective relay board will need to be replaced.