Will Not Run - Gas - Rotary Coin Drop - ALLIANCE T30 Series Troubleshooting Manual

36. Will Not Run – Gas – Rotary Coin Drop
Single and stack with and
without time delay.
** Tested with start switch
**
Is there voltage across
terminals 2A & 1A
of push to start
switch?
NO
voltage to transformer
Is there voltage to
COM of the airflow
switch?
YES
NOTE: The N.O. contact is closed in
the rest position due to the physical
**
Is there voltage across
COM and N.O. of
the airflow switch?
NO
Is the unit equipped
with a time delay
board?
YES
Is there voltage across
H1-6 & H1-8 on
TMR1?
YES
**
Is there voltage across
terminals H1-4 &
H1-8 on TMR2?
YES
70291301
pressed in.
YES
Replace push to
start switch.
Note: Reference
neutral.
Correct wiring
NO
between COM of
airflow switch and
1A on start switch.
mounting of the switch.
Adjust the airflow
YES
switch or replace if
inoperative.
NO
NO
Correct wiring to
TMR1.
Check for proper
NO
operation of
airflow switch
and check wiring.
** Tested with the start switch pressed in.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Electronic Control Troubleshooting
**
Is there voltage across
YES
DOB contacts (H1-4
and H1-5) on TMR2?
NO
**
Is there voltage across NO
terminals 7 & 8 of
CR2 relay?
YES
**
Is there voltage across
YES
terminals 5 & 3 on
the CR2 relay?
NO
**
Is there voltage across
NO
coils B & A of the
motor control relay?
YES
**
Is there voltage across
YES
terminal 7 & 4 of the
motor control relay?
NO
Is there voltage at
NO
terminal 5 on the
motor control relay?
YES
CONTINUED
ON NEXT
PAGE.
Replace time
delay board.
Correct wiring
between CR2
relay and
airflow switch.
Replace CR2
relay.
Correct wiring
between motor
control relay
and airflow
switch.
Replace motor
control relay.
Correct wiring
between
terminal 5
and supply
voltage.
T088D
T088D
65