Pilot Testing, Cleaning & Replacement - Bradford White RG1D30T*(N,X) Service Manual

Res. D Series
Pilot Inspection, Testing and
Replacement
Step 1. Position gas control power
switch to the "OFF" position
and unplug heater from wall
outlet.
Step 2. Turn off gas supply to water heater.
Step 3. Remove outer jacket door and inner door per
service procedure IX on page 25.
Step 4. Disconnect pilot tubing nut (7/16"
wrench) and feedline nut (3/4" wrench)
from gas control.
Step 5. Disconnect igniter/flame sense wire
from gas control.
Step 6. Remove burner assembly from
combustion chamber.
Step 7. Remove pilot assembly from feedline (1/4" nut driver).
Step 8. Visually inspect igniter/flame sense wire for
damage. Replace pilot if damage is found.
Step 9. With a multi-meter set to ohms setting,
check continuity through igniter/flame
sense wire. Replace pilot if no continuity.
Step 10. Visually inspect igniter/flame sense
electrode for deterioration. Replace pilot
as necessary. Electrode should not be in
contact with pilot hood, if so, carefully
adjust electrode to a gap of distance of
3/32" (.09) from pilot hood.
Step 11. Visually inspect igniter/flame sense electrode
for oxidation build up. Carefully clean any
oxidation using very fine emery cloth.
Step 12. Visually inspect pilot tubing for kinks or
cracks. If damage is found, replace pilot.
Step 13. Inspect pilot tubing and pilot orifice for blockage:
a. Remove ferrule nut from bottom of pilot assembly (7/16" wrench).
b. Remove pilot tube and pilot orifice.
c. Inspect pilot tubing and pilot orifice for blockage. Clean or replace as necessary.
Step 14. Reassemble pilot and install on feedline. Reinstall burner assembly to
water heater. Restore gas supply and check for gas leaks.
Step 15. To resume operation, follow the instructions located on the lighting
instruction label or the lighting instructions located in the installation and
operation manual.
NOTICE
Feedline nut for natural gas control
uses right hand threads, LP control
uses left hand threads.
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