Service Manual

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120 volt potential exposure. Isolate the appliance
and reconfirm power is disconnected using a
multi-meter.
WARNING
Service Procedure II:
Combustion System Testing and Replacement
Combustion System 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 gas connection, PVC intake venting, silicone tubing, and wire harness.
6. Disconnect wire harnesses flame sensor, gas valve, and blower. Disconnect high voltage cable from spark
rod connection.
7. Remove the 5 bolts (1/2" socket) holding the burner mounting insert in place.
8. Carefully remove combustion assembly with gasket from water heater.
9. See next page for combustion system installation procedure.
Heater components may be HOT when performing
the following steps in this procedure. Take
necessary precaution to prevent personal injury.
WARNING