Service Manual

ManualsBrandsBradford White ManualsCommercial1. Light-Duty Ultra Low NOx Atmospheric Vent Gas

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 & remove surround cover from top of

heater.

Step 5.From the gas valve, disconnect the gas

connection, PVC damper assembly, silicone tubin

and wire harness.

Step 6. Disconnect wire harnesses to the flame sensor,

spark rod connection, blower, damper, circulator,

flow switch, blocked vent switch and

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 wi

re 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 screws (philips head) that ho

ld the

Spark Rod and Flame Sensor.

Step 11. Remove the Spark Rod and Flame Sensor. The

gaskets will need to be replace when reinstalled.

Step 12.

Remove the 6 nuts (7/16" socket) holding the

burner plate and combustion system in place.

Step 13. Remover combustion system and burner plate f

rom

the mounting assembly. See next page for burner

tube installation procedure.

Burner Tube 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.

Spark Rod and Flame

Sense

Combustion system

and burner plate

Burner

Burner Gasket (X2)

Remove 6 nuts

(7/16" socket)

Mounting Assembly