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UPV75 Series
Pilot Inspection, Testing and Replacement
Step 1.
Position the gas control power switch
to the "OFF" position and unplug the
heater from the wall outlet.
Step 2.
Turn off gas supply to the water
heater.
Step 3.
Remove outer jacket door.
Step 4.
Disconnect pilot tube (
and feedline (¾" wrench) from gas
control.
Step 5.
Disconnect igniter/flame sensor wire
from gas control.
Step 6.
Remove the (4) ¼" hex drive screws
holding the right side inner door in
place.
Step 7.
Remove the (4) ¼" hex drive screws
holding the left side burner door in
place.
Step 8.
Remove burner assembly from
combustion chamber.
Step 9.
Remove pilot assembly from the
burner assembly (¼" nut driver).
Step 10. Visually inspect igniter/flame sense
wire for damage. Replace pilot if
damage is found.
Step 11. With a multi-meter set to ohms setting,
check continuity through igniter/flame
sense wire. Replace pilot if no
continuity.
Step 12. 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
distance of
" wrench)
7
/
16
" (.09) from pilot hood.
3
/
32
UPV75 SERVICE PROCEDURE II
Pilot Inspection, Testing and Replacement
17
17
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