Pilot Testing, Cleaning, And Replacement - Bradford White DV Series Service Manual

DV Series
Pilot Inspection, Testing, and Replacement
Step 1. Remove burner following the steps listed in
"Burner Removal" on page 33.
Step 2. Remove the pilot assembly from the feedline
(1/4" nut driver).
Step 3. Visually inspect the igniter wire for damage.
Replace pilot if damaged. Electrode should
not be in contact with the pilot hood.
Step 4. With a multi-meter set to ohms setting,
check continuity through igniter wire.
Replace pilot if there is no continuity.
Step 5. Visually inspect igniter electrode for
oxidation build up. Carefully clean any
oxidation using a very fine emery cloth.
Note: Steps 6 through 11 are for Honeywell ONLY.
Step 6. Visually inspect the pilot tubing for kinks or cracks. If damage is found, replace
the pilot assembly.
Step 7. Inspect the pilot tubing and the pilot orifice for blockage:
a. Remove the ferrule nut from the bottom of the pilot assembly (7/16" wrench).
b. Remove the pilot tube and pilot orifice.
c. Inspect the pilot tubing and orifice for blockage. Clean or replace as necessary.
Step 8. Reassemble the pilot and install onto the burner.
Step 9. Reinstall the burner assembly into the water heater.
Step 10. Restore the gas supply and check for any gas leaks.
Step 11. To resume operation, follow the instructions located on the lighting instruction
label or the lighting instructions located in the Installation and Operation
Manual.
36
Service Procedure VI
Pilot Testing, Cleaning,
and Replacement
36
Honeywell Pilot