ALLIANCE T30 Series Troubleshooting Manual page 107

54. Unit Will Not Heat – Gas (continued)
(12)
Is there voltage across
the stove limit 1?
NO
(13)
Is there voltage to
input side of
stove limit 2?
YES
(14)
Is there voltage
across stove limit 2?
NO
(15)
Is there voltage to
terminal 2 of
the Ignition Control
Module (ICM)?
YES
(16)
Is there voltage at
terminal 1 of ICM
board?
YES
(17)
Is there voltage across
the coils of the gas
valve?
YES
Please see following page for wiring diagram information.
70291301
YES
Replace the stove
limit.
Correct wiring
NO
between stove limit 1
and stove limit 2.
YES
Replace stove limit 2.
Correct wiring
NO
between terminal 2
of ICM and stove
limit 2.
Note: Make sure unit is
not in a lock out
condition.
NO
Replace ICM board.
NO
Correct wiring
between gas valve
and ICM board.
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Micro Display Control Troubleshooting
YES
Is there gas flow
through the gas valve?
YES
Does the igniter spark?
YES
Is there a flame?
NO
NO
Replace gas valve
coils or complete
gas valve.
NO Replace high
voltage ignition
cable or igniter.
YES
Unit operational.
TMB1869S
TMB1869S
105