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Hybrid Timer Control Troubleshooting
39. Unit Will Not Heat – Gas – Coin Models (continued)
Please see following page for wiring diagram information.
Replace the stove
limit.
Is there voltage across
the stove limit 1?
NO
YES
(12)
TMB2048S
(13)
Correct wiring
between stove limit 1
and stove limit 2.
Is there voltage to
input side of
stove limit 2?
Replace stove limit 2.
NO
YES
NO
YES
(14)
Is there voltage
across stove limit 2?
Correct wiring
between terminal 2
of ICM and stove
limit 2.
Is there voltage to
terminal 2 of
the Ignition Control
Module (ICM)?
Replace ICM board.
Is there voltage at
terminal 1 of ICM
board?
Correct wiring
between gas valve
and ICM board.
Is there voltage across
the coils of the gas
valve?
NO
YES
NO
YES
NO
YES
(16)
(15)
(17)
Note: Make sure unit is
not in a lock out
condition.
Replace gas valve
coils or complete
gas valve.
Is there gas flow
through the gas valve?
Replace high
voltage ignition
cable or igniter.
Does the igniter spark?
YES
NO
YES
NO
YES
Unit operational.
Is there a flame?
YES
NO
Содержание YT025E
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