ALLIANCE T30 Series Troubleshooting Manual page 137

63. Unit Will Not Heat – Gas (continued)
Is there voltage across
the stove limit?
Is there voltage to
terminal 2 of
the Ignition Control
Module (ICM)?
Is there voltage at
terminal 1 of ICM
board?
Is there voltage across
the coils of the gas
valve?
Is there gas flow
through the gas valve?
Does the igniter spark?
Please see following 2 pages for wiring diagram information.
70291301
(12)
YES
Replace the stove
limit.
NO
(13)
Correct wiring
NO
between terminal 2
of ICM and stove
limit.
YES
Note: Make sure unit is
not in a lock out
condition.
(14)
NO
Replace ICM board.
YES
(15)
NO
Correct wiring
between gas valve
and ICM board.
YES
NO
Replace gas valve
coils or complete
gas valve.
YES
NO
Replace high
voltage ignition
cable or igniter.
YES
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NetMaster Troubleshooting
YES
Is there a flame?
NO
Unit operational.
TMB1857S
TMB1857S
135