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DV Series
Burner Inspection
At periodic intervals (every 6 months) a visual inspection should be made of the pilot and main
burner for proper operation and to assure no debris is accumulating.
Pilot flame should be stable, some causes for an unstable pilot flame are:
Water heater vent is less than the allowable vent length.
Gas pressure is out of specification.
Pilot flame not fully engulfing spark/flame sensor.
Main burner should light smoothly from pilot and
burn with a blue flame with a minimum of yellow
tips.
Main burner must be free from any debris
accumulation that may affect burner operation
(see burner cleaning procedure below).
Burner Removal
Step 1. Position the gas control knob in the
"OFF" position.
Step 2. Turn off the gas supply to the water
heater.
Step 3. Remove the outer jacket door.
Remove the inner doors per Service
Procedure I.
Step 4. Disconnect the igniter wire from the
gas control.
Step 5. Disconnect the red and white pilot
wires from the gas control.
Step 6. Disconnect the pilot feedline (7/16"
wrench) from the gas control.
Step 7. Disconnect the main burner feedline
(3/4" wrench) from the gas control.
Feedline nut for natural gas control
uses right hand threads; L.P. control
uses left hand threads.
Step 8. Remove the burner assembly from the
combustion chamber.
34
NOTICE
Service Procedure V
Burner Operation Inspection,
Cleaning, and Replacement
34
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