M413438
25
Section 3 Troubleshooting
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25. SPARK TO PILOT BURNER — NO PILOT FLAME
(Johnson Intermittent Ignition)
24 VOLTS BETWEEN
TERMINAL 1 AND
GROUND ON
ELECTRONIC
PACKAGE
YES
NO
GAS PRESENT AT
PILOT BURNER
(Disconnect White Wire
from Terminal 3 and
Light Manually
YES
REPLACE
ELECTRONIC
PACKAGE
REMOVE BLACK WIRE
FROM TERMINAL 1.
MOMENTARILY TOUCH TO
TERMINAL 2; IS “CLICK”
HEARD?
NO
NO SPARK
TO PILOT BURNER
CLEAR
OBSTRUCTION
PILOT FILTER,
TUBE OR
ORIFICE
OBSTRUCTED
YES
NO
YES
REPLACE RIGHT COIL
(PILOT OPERATOR)
NO
YES
YES
YES