Service Manual

Combustion System Replacement Procedure
Step 1. Fully inspect burner 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 system using new gasket or fully inspected gasket from step 1.
Secure the combustion system to the threaded studs using nuts from step 10
on previous page. Tighten the nuts evenly
Step 3. Replace the insulation
from step 9 from the previous page.
If the insulation was damaged in the removal process it needs to be replaced.
Step 4. Re-install the jacket head and components that were removed in step 8 from the previous page.
Step 5. Reconnect wire harnesses
to the flame sensor, spark rod connection, blower, damper, circulator, flow
switch, blocked vent switch and thermostat sensor.
Step 6. Reconnect PVC damper assembly, 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 7. 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 8. Replace surround cover on top of water heater.
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Connect damper
assembly after step 5
Combustion
System
Evenly tighten 4 nuts
(7/16" socket)
Ensure gasket is in
good condition
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