Service Manual

Step 1. Position main power switch to “OFF”.

Step 2. Disconnect (unplug) water heater from

120 volt power source.

Step 3. Turn off gas supply to water he

ater.

Step 4. Un-latch and remove surround cover from top of

heater.

Step 5.From the gas valve, disconnect the gas

connection, PVC damper assembly, silicone

tubing

and wire harness.

Step 6. Disconnect wire harnesses to the flame sensor,

spark rod connection, blower, damper, circulator,

flow switch, blocked vent switch a

nd thermostat

sensor.

Step 7. Remove screws that hold jacket head onto the

jacket.

Step 8. Remove jacket head with all control panel and all

the

wire harnesses attached to it.

Step 9. Remove the two pieces of insulation that cover

access to the burner mounting insert.

Step 10. Remove the 4 nuts (7/16" socket) hol

ding the

burner assembly in place.

Step 11. Carefully remove the combustion system

components and gaskets from the water heater.

Step 12. See next pa

ge for combustion system installation

procedure.

Combustion System Removal Procedure

WARNING

120 volt potential exposure. Isolate the

appliance and reconfirm power is

disconnected using a multi-meter.

WARNING

Heater components may be HOT when performing the following steps in this procedure.

Take necessary precaution to prevent personal injury.

Disconnect

damper assembly

Remove 4 nuts

(7/16" socket)

Combustion

System

Gasket