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Service Procedure II:
Combustion System Testing and Replacement
Combustion System Replacement Procedure
Step 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.
Step 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 7
on previous page. Tighten screws evenly.
Step 3.
Reconnect high voltage cable to spark rod, flame sensor, blower and gas valve.
Step 4.
Reconnect PVC intake 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.
Step 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.
Step 6.
Replace surround cover on top of water heater.
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