Alliance Laundry Systems CA050L - Electric OM Control: No Heat With Cycle Selected

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Troubleshooting
24.Electric OM Control: No Heat With Cycle Selected, Unit Running and
Calling For Heat
460-480 Volt/60 Hertz/3 Phase and 208-240 Volt/60 Hertz/3 Phase Reversing and Nonreversing
Electric OM Models:
No heat with cycle
selected, unit running
and calling for heat
Is there
voltage at
H2-13?
Replace micro
control.
Is there
voltage at
H2-6?
Correct wiring
between H2-6
and H2-13.
If there
voltage at
H2-5?
Check for proper
thermistor
operation. Replace
micro control if
necessary.
Is
there voltage to
terminal 14
of the motor
relay?
Correct wiring
between motor
relay and
micro control.
Is
there voltage
to terminal 13 of
the motor
relay?
Replace motor
relay.
TMB2325S-a
Is there
voltage at
white/brown
fan motor
centrifugal
switch?
Correct wiring
between relay
and motor
switch.
Is
there
voltage at
brown/white
fan motor
centrifugal
switch?
Replace motor.
Continued on
next page.
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
No
Yes
Is
there
voltage to
airflow switch
orange/brown wire
(common
terminal)?
Correct wiring
between
cabinet limit
and airflow
switch.
Is
there voltage
to the N.O.
terminal of the
airflow
switch?
Check for
proper airflow.
Replace
airflow switch.
No
Yes
No
TMB2325S-a