Lennox Air Conditioner Condensing Unit Fan Blade #98M19

02:37
8.2k
26
This video provides step-by-step repair instructions for replacing the fan blade on a Lennox A/C condensing unit. The most common reason for replacing the fan blade is when the central air conditioning unit is noisy.

All of the information for this fan blade replacement video is applicable to the following brands: Lennox

Tools used: quarter inch socket, adjustable wrench

Step By Step Instructions

1
To replace the fan blade in your central air condensing unit first shut off the power to the unit.
2
You can do this by removing the fuses from the disconnect box or switching off the circuit breaker.
3
Use a quarter inch socket or nut driver to unthread the screws securing the top cover.
4
Lift up the cover and turn it over – be careful not to damage the condenser coils.
5
Note the position of the old fan blade on the motor shaft then use an adjustable wrench to loosen the set screw.
6
Lift off the old fan blade – this may require some effort.
7
Install the new fan blade by positioning it on the motor shaft with the set screw aligned with the flat side of the shaft. then tighten the set screw to secure.
8
Now reposition the top cover.
9
Make sure the motor wires are aligned in the notch in the housing.
10
Rethread the screws to secure.
11
With the repair completed, restore power to the condensing unit and your central air system should be ready for use.
Description
This video provides step-by-step repair instructions for replacing the fan blade on a Lennox A/C condensing unit. The most common reason for replacing the fan blade is when the central air conditioning unit is noisy.

All of the information for this fan blade replacement video is applicable to the following brands: Lennox

Tools used: quarter inch socket, adjustable wrench
Step-By-Step Instructions
1
To replace the fan blade in your central air condensing unit first shut off the power to the unit.
2
You can do this by removing the fuses from the disconnect box or switching off the circuit breaker.
3
Use a quarter inch socket or nut driver to unthread the screws securing the top cover.
4
Lift up the cover and turn it over – be careful not to damage the condenser coils.
5
Note the position of the old fan blade on the motor shaft then use an adjustable wrench to loosen the set screw.
6
Lift off the old fan blade – this may require some effort.
7
Install the new fan blade by positioning it on the motor shaft with the set screw aligned with the flat side of the shaft. then tighten the set screw to secure.
8
Now reposition the top cover.
9
Make sure the motor wires are aligned in the notch in the housing.
10
Rethread the screws to secure.
11
With the repair completed, restore power to the condensing unit and your central air system should be ready for use.

Applicable Product Model

Parts Needed
Fan Blade
Fan Blade
$161.28
Total$0.00

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