Service Manual

Service Procedure II

Combustion System Testing and Replacement (Continued)

Combustion System Removal Procedure

1. Fully inspect burner mounting insert gasket for the following:

a) Tears d) Dirt or debris

b) Missing material e) Other imperfections that would inhibit proper seal

c) Cracks

If gasket is NOT affected by any of the above, gasket replacement is not required.

2. Install combustion assembly using new gasket or fully inspected gasket from step 1. Secure combustion

assembly at the burner mounting insert using screws from step 6 on previous page. Tighten screws evenly.

3. Reconnect wire harnesses to igniter or high voltage cable to spark rod, flame sensor,

blower, and gas valve.

4. Reconnect PVC venting, gas supply and silicone tubing to gas valve. Turn on gas supply to heater and

check for gas leaks, repair any gas leaks found.

5. Restore 120 volt power supply to water heater and confirm proper operation following the lighting

instructions on the lighting instruction label or the lighting instruction located in the Installation and

Operating Instruction Manual.

6. Replace the surround cover on the top of the water heater.

Gas valve wire harness

Gas connection

PVC vent

connection

Burner mounting insert

Burner tube

Burner mounting screw

(total of 5)

Burner mounting insert gasket