Bradford White EF Series Service Manual page 20

Heater components may be HOT when performing the following steps in this procedure.
Combustion System Removal Procedure
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 heater.
Step 4. Un-latch and remove surround cover from top of
heater.
Step 5. From the gas valve, disconnect the gas
connection, PVC venting, Silicone tubing
and wire harness.
Step 6. Disconnect wire harness's from hot surface
igniter, flame sensor and blower.
Step 7. Remove the 5 screws (½" socket)
holding the burner mounting insert
in place.
Step 8. Carefully remove combustion assembly
with gasket from water heater.
Step 9. See page 21 for combustion system installation procedure.
Page 20
SERVICE PROCEDURE EF-II
Combustion System Testing and Replacement
Take necessary precaution to prevent personal injury.
Burner mounting
screw
(Total of 5)
WARNING
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
WARNING
Gas valve
wire harness
Gas
connection
PVC vent
connection
Burner mounting
insert
Burner tube
Burner mounting
insert gasket
Page 20