ALLIANCE T30 Series Troubleshooting Manual page 87

45. Will Not Heat – Gas – Rotary Coin Drop (continued)
Note: Voltage checks are referenced to
Is there voltage to the
input side of the
cabinet limit?
YES
Is there voltage to the
output side of the
cabinet limit?
YES
Is there voltage to the
input side of the stove
limit?
YES
Is there voltage to the
output side of the stove
limit?
YES
Is there voltage across
terminals 2 & 3 of
the ICM board?
YES
Is there voltage across
terminals 1 & 3 of
the ICM board?
YES
70291301
transformer neutral.
Correct wiring
NO
between cabinet
limit and temp
control board.
NO
Replace the
cabinet limit.
Correct wiring
NO
between stove limit
and cabinet limit.
NO
Replace the stove
limit.
Correct wiring
NO
between ICM
board and stove
limit or neutral.
NO
Replace the ICM
board.
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Electronic Control Troubleshooting
Is there voltage across
the coils of the gas
valve?
YES
Is there gas flow
through the gas valve?
YES
Does the igniter spark?
YES
NO
Is there a flame?
YES
UNIT
OPERATIONAL
Correct wiring
NO
between gas valve
and ICM board.
Replace gas valve
NO
coils or complete
gas valve.
Replace high
NO
voltage ignition
cable or igniter.
T091D
T091D
85