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HomeRepair HelpLuxaire Central A/C RepairLuxaire Central air conditioner not blowing enough Repair
Luxaire Central air conditioner not blowing enough
If your Luxaire central air conditioner is not blowing enough air, start with the most likely cause: a dirty evaporator coil, clogged air filter, or restricted blower wheel. Blocked components reduce airflow and can cause the evaporator coil to freeze. Replace the air filter as recommended in the owner's manual, and clean the coil only as directed. Next, check the furnace or air handler blower motor. A failing motor, seized bearing, or blower wheel that does not turn freely can cause weak airflow from AC vents. Make sure every register is fully open, then inspect the Luxaire blower wheel and housing for dust and debris. Clean the wheel with compressed air or a soft brush after shutting off power, and avoid bending its sharp fins. If the filter, coil, registers, and blower wheel are clear, the blower motor may be improperly wired to a speed that is too low for cooling. Testing, rewiring, or replacing a blower motor involves line voltage and may require a qualified HVAC technician. Enter your model number to find the exact blower motor, blower wheel, air filter, or other replacement part for your specific Luxaire central air conditioner.
01 - Dirty Evaporator Coil
Proper air flow is critical for the central air conditioner to work properly. The evaporator needs sufficient air flow to keep the condensing water from freezing. If the evaporator coil, air filter or blower wheel gets clogged, air flow will be reduced causing ice to start forming on the evaporator coils, eventually freezing them up. 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 air filter replacement frequency recommendations and for evaporator coil cleaning instructions.
Highly Likely
02 - Luxaire Central Air Conditioner Blower Motor
Since the furnace's blower motor is the component that circulates the cooled air through the home's venting, a defective blower motor will result in the central air conditioner not blowing enough. 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.
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Highly Likely
03 - Register is Closed or Only Partially Opened
Some air registers have adjustable louvers that allow the air flow to be restricted or shut off entirely. This would be used to cut off the air flow to a room that isn't being used, or to restrict air flow to one room so more air will flow to the other rooms. If there is low air flow, check that the louvers are fully open.
Highly Likely
04 - Blower Motor Improperly Wired
Most central air conditioner blower motors have multiple speeds. Central air conditioners require higher speeds to move sufficent air throughout the home for cooling. If the blower was wired incorrectly it may not be moving enough air to properly cool the home. If the air filter and evaporator coil are clear and the air ducts are sealed properly but there is still not enough air flow, the blower may be wired incorrectly. Proper air flow is determined by several factors: the design of the duct work, the size of the home, and the size of the unit. A service technician may be required to determine if the air flow is sufficient for the home.
Highly Likely
05 - Luxaire 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, preventing the central air system from blowing enough. 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
06 - Clogged Blower Wheel
Over time the blower wheel can become clogged with dust and debris. This will greatly affect the air flow circulating throughout the home. You can try cleaning the blower wheel with compressed air or with a soft bristle brush. Be sure to shut off power to the unit before attempting to clean the blower wheel. 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
Frequently Asked Questions
Why is my Luxaire central air conditioner not blowing enough air?
How do I troubleshoot a Luxaire blower motor that is not running?
Can a dirty blower wheel or evaporator coil cause weak airflow and a frozen AC coil?
Why is my central air conditioner blowing weak air even though the blower is running?
How do I find the correct Luxaire blower motor or blower wheel replacement part?
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