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UDV Series
Pilot Inspection, Testing and Replacement
Step 1.
Remove the pilot assembly from the burner
(1/4" nut driver).
Step 2.
Visually inspect the igniter wire for
damage. Replace pilot if damaged.
Electrode should not be in contact with the
pilot hood.
Step 3.
With a multi-meter set to ohms setting,
check continuity through igniter wire.
Replace pilot if no continuity.
Step 4.
Visually inspect igniter electrode for
oxidation build up. Carefully clean any
oxidation using a very fine emery cloth.
Step 5.
Visually inspect the pilot tubing for kinks or
cracks. If damage is found, replace the
pilot assembly.
Step 6.
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 7.
Reassemble pilot and install onto the
burner.
Step 8.
Reinstall the burner assembly into the
water heater.
Step 9.
Restore the gas supply and check for any
gas leaks.
Step 10.
To resume operation, follow the
instructions located on the lighting
instruction label or the lighting instructions
located in the installation and operation
manual.
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UDV SERVICE PROCEDURE II
Pilot Testing, Cleaning & Replacement
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