A.O. Smith GP 6 40YPC T 100 User Manual

37

Important: Use only factory authorized replacement 

parts. If you lack the necessary skills to properly 

perform the installation, you should not proceed, but 

get help from a qualified service technician.
Tools required: Phillips Head Screwdriver.

Removing the Fan from the Air Intake Chamber:
1.  Set the gas control valve/thermostat to its lowest 

setting by pressing the “COOLER” and “HOTTER” 

buttons together at the same time holding for 1 

second. Then press the “COOLER” button to the 

lowest setting (Figure 68).

2.  Turn gas control switch  to the “OFF” position 

(located right side of the gas control valve/

thermostat) and turn off the gas supply to the unit 

(Figure 69). 

3.  Disconnect the electric connection by unplugging 

the transformer from the wall outlet (Figure 69).

4.  Using a phillips head screwdriver, remove the two 

(2) screws at the air intake chamber screen (Note: 

save screws for reinstallation later) (Figure 70).

5.  Remove the air intake chamber screen by lifting 

upward (Figure 70).

6.  Take note of the wire position routing around 

the fan inside of the air intake chamber as this 

wire positioning will need to be duplicated upon 

installation of the new fan inside the intake 

chamber box.

7.  Remove the 2 screws securing the old fan 

inside the chamber (Note: save these screws for 

reinstallation later) (Figure 70).

8.  Lift the old fan up and outward to remove from the 

air intake chamber (Figure 70).

9.  Locate the male to female electrical connection 

with close pin lock on wiring harness (the white 

connection approximately 12” from fan). 

10. To separate the electrical connection of the fan 

and wiring harness: press down on the back 

portion of the close pin lock of the electrical 

connection while pulling the connection in the 

opposite directions.

g

COOLER

HOTTER

Electronic Control Display

ON/OFF 

SWITCH

ON

OFF