ALLIANCE T30 Series Troubleshooting Manual page 85

44. Will Not Heat – Gas – Manual Timer (continued)
Note: Voltage checks are referenced to
Is there voltage to the
input side of the
cabinet limit?
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
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.
YES
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.
NO
Replace 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.
NO
Replace gas valve
or gas valve coils.
Replace high
NO
voltage cable or
igniter.
TMB1834S
TMB1834S
83