Service Manual

31
31
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
WARNING
Service Procedure III:
Burner Tube Inspection and Replacement
Burner Tube Removal Procedure
1. Position main power switch to OFF.
2. Disconnect (unplug) water heater from 120 volt power source.
3. Turn OFF gas supply to water heater.
4. Unlatch and remove surround cover from top of heater.
5. From the gas valve, disconnect the PVC intake venting, gas supply
connection, wire harness, and silicone tubing.
6. Disconnect wire harness from blower assembly.
7. Remove the two screws holding each the
spark rod and flame sensor in place (long
reach magnetic Phillips screwdriver).
Carefully remove spark rod and flame
sensor from combustion assembly.
8. Remove the 4 nuts (7/16" wrench) holding
the burner transition in place. Lift the
blower/gas valve transition assembly from
burner mounting insert, remove gasket
and set aside.
9. Remove burner tube from burner
mounting insert. See next page for
burner tube inspection procedure.
Heater components may be HOT when performing the
following steps in this procedure. Take necessary
precaution to prevent personal injury.
WARNING