AIR INTAKE CHAMBER FAN REMOVAL / REPLACEMENT
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.
Figure 68.
HOTTER 
COOLER
Electronic Control Display
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.
Figure 69.
ON
OFF
ON/OFF
SWITCH
UNPLUGGED
Figure 70.
SCREEN FAN
AIR INTAKE
CHAMBER BOX
37