Alliance Laundry Systems CA050L - CE Models Will Not Heat - Gas

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NetMaster Troubleshooting – KT075 Models Only
52.CE Models Will Not Heat – Gas
Check airflow
switch (AFS) for
proper operation.
If needed correct
wiring between
AFS and FS-2.
Verify if there is
voltage at AFS COM.
If no, backtrack
circuit to transformer
and correct as
necessary.
Is there voltage on
FS-2 on the control?
No
Yes
Check thermistor for
proper operation.
Replace if
necessary. Replace
control if thermistor
is good.
Is there voltage at FS-1
of the control?
No
Yes
Correct wiring
between FS-1 on
the control and
terminal 3 of the
motor.
Is there voltage at
terminal 3 of the
motor?
No
Yes
Check for proper
operation of the fan
motor switch.
Replace motor if
necessary.
Is there voltage at
terminal 5 of the
motor?
No
Yes
Correct wiring
between cabinet
limit and fan motor
switch.
Is there voltage to the
input side of the
cabinet limit?
No
Yes
Check cabinet limit
for proper operation.
Replace if
necessary.
Is there voltage to the
output side of the
cabinet limit (CT)?
No
Yes
Correct wiring
between stove limit
and cabinet limit.
Is there voltage to input
side of the stove limit
(ST-1)?
No
Yes
Check stove limit for
proper operation.
Replace if
necessary.
Is there voltage to the
output side of the stove
limit?
No
Yes
Correct wiring
between ignition
control and stove
limit.
Is there voltage to
terminal 4 on the
ignition control?
No
Yes
Correct wiring
between ignition
control and lint
door switch (LDS).
Is there voltage to
terminal 2 on the
ignition control?
No
Yes
Replace ignition
control.
Is there voltage on
terminal 6 of ignition
control module?
No
Yes
Correct wiring
between ignition
control and gas
valve.
Is there voltage across
the coil of the gas
valve?
No
Yes
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
Continued on next
page.
Note: Test conducted
with unit running and
calling for heat.
Note: Voltage checks
referenced to neutral
unless otherwise
stated.
TMB2349S-a
TMB2349S-a