Burner Operation Inspection, Cleaning And Replacement - Bradford White ECO-DEFENDER U130T*FRN Service Manual

MAIN BURNER: Inspection,
Cleaning and Replacement
At periodic intervals (not more then 6 months) a visual inspection should be made of the main burner for proper operation
and to insure no debris is accumulating.
Main burner should light smoothly from pilot and burn with a blue flame with a minimum of yellow tips. After 5 minutes
of operation the burner screen will become radiant and the flame will soften and turn orange. If the burner screen does not
become radiant after 5 minutes of operation it must be cleaned (see burner cleaning procedure below).
Main burner must be free from any debris accumulation that may effect burner operation (see burner cleaning procedure
below).
Under no circumstances shall flammable materials be used or stored in the vicinity of the water heater. With
the inner door removed the Bradford White Defender Safety System will be inactivated. If flammable vapors
are present, a fire or explosion may result causing property damage, personal injury or death.
Inner door and burner components may be HOT when performing this operation. Take
BURNER CLEANING
Step 1. Remove burner and inner door assembly per SERVICE PROCEDURE ED-I, steps 1 through 3g.
Step 2. Remove manifold mount from burner inner door by removing (2) ¼" hex drive screws.
Step 3. Thoroughly inspect burner screen and burner venturi and remove any loose debris accumulation. Inspect
burner screen for any openings larger than the normal screen openings.
Step 4. Use compressed air and/or a vacuum to remove any scale or other debris accumulation from the burner screen
and venturi.
Burner Screen
DANGER
WARNING
necessary precaution to prevent personal injury.
¼" Hex Drive Screws
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SERVICE PROCEDURE ED-VI
Burner Operation Inspection,
Cleaning and Replacement
Burner Venturi
19