Replacing the Wiring Harness | A.O. Smith GAHH 50 100, GAHH 40 100

Replacing the Wiring Harness:

13.Locate the male to female electrical connection with close pin lock on wiring harness (located on the right side of fan) (Figure 62).

14.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.

15.The wire harness goes through the rubber wire protector in the back of the air intake chamber box (Figure 62).

16.Reach inside the air intake chamber box and push on the center of the rubber wire protector pushing it and the wiring harness wires to the outside of the air intake chamber box (Figure 62).

17.Remove the wiring harness from the wire channeling in the back center of the air intake chamber box (Figure 63).

18.The old wiring harness can now be discarded.

Installing the New Wiring Harness:

19.Route the multi-lead portion of the new wiring harness through the opening at the bottom of the water heater’s jacket (Figure 64).

20.Insert the fan wiring harness wire through the back and into the fan box compartment by threading the connector through the opening and insert in approximately 6 inches of wiring (up to the rubber wire protector) (Figure 62).

21.Push the rubber wire protector into place in the back of the air intake chamber box (Note: The rubber wire protector must be positioned properly and locked into place around both sides of the air intake chamber box) (Figure 63).

22.Position the wiring harness wire in the wiring channeling molded down the back center of the air intake chamber box (Figure 63).

23.Plug the electrical connections of the fan into the wiring harness: Align the electrical connections in such a position as to ensure the locking portions of the connections are on the same side. Gently push the electrical connectors together until the snap lock on the wiring harness engages the angular lock on the fan connector. Do Not use undue force in pushing these connectors together (Figure 62). (Note: Connectors are designed in such a manner if the connection is not properly aligned they will not lock together).

24.Route the wiring inside the fan box to the outer edge of the fan in such a manner to ensure it will not be pinched or damaged upon installation of the air intake screen (Figure 62).