- 1). Turn off the power to the air conditioner by flipping the circuit breaker to the "off" position.
- 2). Open all the duct vents in the home.
- 3). Open the access panel for the indoor part of the unit. Lift the panel up and off.
- 4). Pull out the filter from the air conditioner and inspect it for dirt and other matter. Replace it if it is dirty by contacting your manufacturer or by using the model number on the side of the filter to purchase one from a retailer.
- 5). Turn on the unit and set the thermostat to a cold temperature. Listen for the blower fan, which is at the bottom of your indoor air conditioner unit, to hear whether the fan is running. Shut off power to the unit at the breaker, if it is not, and inspect all the wires for damage.
- 6). Rake leaves and twigs away from the outside condenser unit and vacuum the fins using a soft hose attachment.
- 7). Remove the screw from the top of the condenser and pull up the cover. Remove it carefully to prevent damaging the fan. Spray the inside of the condenser with a hose, aiming the water towards the fins.
- 8). Turn the power back on at the breaker and turn the air conditioner on. Inspect the blower motor on the unit if the air conditioner is not blowing cold air. Turn off the electricity to the unit at the breaker again. Remove the access panel from the inside unit of the air conditioner. Use a socket wrench to remove the two nuts holding the blower motor control panel, located on the bottom of the unit, and let it hang down. Inspect the wires on the control panel and the blower motor behind it for damage.
- 9). Spin the blower motor fins to see if the fan moves freely. Do not force the fan to move. Locate the blower oil ports if it does not move freely by hand. Place a few drops of oil into the oil ports according to the instructions in your owner's manual.
- 10
Turn the electricity back on at the breaker. Turn up the thermostat to get the blower moving. If it does not move, the blower motor likely needs replacing. - 11
Turn off power at the breaker again. Mark the blower motor wires with masking tape to remember where they were installed. Remove the wires from the old blower motor by pulling off the connectors with a pair of pliers. Remove the wires by pulling on the connectors, not the wires. - 12
Remove the bolts that hold the blower assembly to the unit, using a socket wrench. Remove the set screws that hold the wheel to the motor housing and pull the motor housing out of the unit. Take the motor to an HVAC specialist to find a replacement. Reinstall by reversing the take-apart instructions.
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