Primus D13 - Will Not Heat - Gas - Manual Timer

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Section 7 Electronic Control Troubleshooting
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
WILL NOT HEAT – GAS – MANUAL TIMER
(Sheet 2 of 2)
TMB1834S
Is there voltage to the
input side of the
cabinet limit?
Correct wiring
between cabinet
limit and temp
control board.
YES
NO
Is there voltage to the
output side of the
cabinet limit?
YES
NO
Replace the cabinet
limit.
Is there voltage to the
input side of the stove
limit?
NO
YES
Correct wiring
between stove limit
and cabinet limit.
Is there voltage to the
output side of the stove
limit?
NO
YES
Replace the stove
limit.
Is there voltage across
terminals 2 & 3 of
ICM board?
YES
NO
Correct wiring
between ICM board
and stove limit.
Is there voltage across
terminals 1 & 3 of
the ICM board?
YES
UNIT OPERATIONAL
NO
Replace ICM board
Note: Voltage checks are referenced to
transformer neutral.
Is there voltage across
the coils of the gas
valve?
NO
YES
Correct wiring
between gas valve
and ICM board.
Is there gas flow
through the gas valve?
Does the igniter spark?
Is there a flame?
Replace gas valve
or gas valve coils.
Replace high
voltage cable or
igniter.
NO
YES
NO
YES
NO
YES
TMB1834S