L.B. White AD100 - Manual (Page 18)

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Refer to Fig.23 (AD100) or Fig.24 (AD060) for servicing
of the igniter assembly.
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The igniter/sensor assembly may require cleaning due
to accumulations of dust and dirt over a period of
time, affecting its ability to ignite fuel gas and sense
burner flame. Cleaning will require igniter/sensor
removal.
-- If spark appears to be weak, rub the igniter
electrode with emery cloth or steel wool to remove
any buildup.
--- If the spark appears strong but the heater cycles
off, rub the sensor rod with emery cloth or steel
wool to remove any build-up.
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Ensure the igniter gap is .15 in. and the igniter tip is
positioned over the burner port according to the
illustration below.
IGNITER AND FLAME SENSOR
SENSOR IGNITER
2.5 mm - 4.5 mm
HEAT CHAMBER FACE
BURNER
IGNITER LEAD
SENSOR LEAD
IGNITER / SENSOR
ENCLOSURE
TO REMOVE IGNITER / SENSOR WITH ENCLOSURE
REMOVE SCREW, LIFT ASSEMBLY
FROM ITS MOUNTING SLOTS
TO GAP IGNITER LOOSEN SCREW.
MOVE ENCLOSURE UP OR DOWN
TO ALLOW PROPER POSITIONING
OF IGNITER TO BURNER.
FIG. 23
.15 in.
17
BURNER
17,6 kW: 3 mm
65,9 kW: 4 mm IGNITER
FLAME SENSOR
REMOVE SCREW (65,9 kW MODEL ONLY)
REMOVE SCREWS
IGNITER/SENSOR
ENCLOSURE
BURNER
HEAT CHAMBER
LOOSEN SCREWS AND SLIDE IGNITER
UP/DOWN TO MAINTAIN PROPER GAP.
REMOVE SCREWS AS NEEDED FOR
SERVICING IGNITER ASSEMBLY
BURNER
BURNER
IGNITER / SENSOR
ENCLOSURE
HEAT CHAMBER
IGNITER .15 in.
LOOSEN SCREW AND SLIDE
ASSEMBLY UP/DOWN TO MAINTAIN
PROPER GAP.
REMOVE SCREW AND SLIDE THE ENCLOSURE’S
MOUNTING TABS FROM SLOTS IN HEAT CHAMBER.
IGNITER ENCLOSURE
SENSOR
IGNITER
HEAT CHAMBER
BURNER
FLAME SENSOR
FIG. 24