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HomeRepair HelpGarrison Central A/C RepairGarrison Central air conditioner not blowing enough Repair
Garrison Central air conditioner not blowing enough
If your Garrison central air conditioner is not blowing enough air, start with the most likely airflow restrictions: a dirty air filter, clogged evaporator coil, or debris-covered blower wheel. Restricted airflow can cause the evaporator coil to freeze and leave your home with weak airflow from the AC vents. Next, inspect the furnace blower motor. A failing motor may not circulate enough cooled air, while seized bearings can keep the blower wheel from turning freely. Check that every air register is fully open, then consider whether the blower motor was wired to the wrong speed after previous service. If the filter, evaporator coil, and ductwork are clear, a dirty or damaged blower wheel and housing may be limiting airflow. Shut off power before cleaning, and avoid bending the wheel fins. Testing blower motor continuity, checking voltage, or correcting motor wiring involves line voltage and may require a qualified technician. Do not open the sealed refrigerant system or handle refrigerant without EPA 608 certification. Enter your Garrison central air conditioner model number to find the exact replacement air filter, blower motor, blower wheel, or other part for your specific unit.
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 - Garrison 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 - Garrison 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 Garrison central air conditioner not blowing enough air?
How do I know if the Garrison blower motor is causing weak airflow?
Can a clogged blower wheel or evaporator coil cause my AC coil to freeze?
Why is my Garrison blower motor not moving enough air after a repair?
How do I find the correct Garrison blower motor or blower wheel replacement part?
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