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

Electronic Control Troubleshooting
34. Will Not Run – Electric – Rotary Coin Drop
Single and Stack with and without
time delay. Single and three phase power.
**
Is there voltage across
terminals 2A & 1A
of push to start
switch?
NO
Is there voltage to
COM of the airflow
switch?
YES
**
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
terminals H1-4 &
H1-8 on TMR2?
YES
**
Is there voltage across
DOB contacts on
TMR2?
NO
60
** Tested with vend price
satisfied and with start
switch pressed in.
YES
Replace push to
start switch.
Note: Reference
voltage to transformer
neutral.
Correct wiring
NO
between COM of
airflow switch and
1A on start switch.
NOTE: The N.O. contact is closed in the rest
position due to the physical mounting
of the switch.
Replace inoperative
YES
switch or correct
airflow vane
operation.
NO
Check for proper
NO
operation of
airflow switch and
check wiring.
YES
Replace time
delay board.
** Tested with the start switch pressed in.
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**
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
the coil of the motor
control relay?
YES
Three phase
Is unit single
Refer to note.
phase or three
phase?
Single phase
**
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 COLUMN 1.
Correct wiring
between CR2
relay and
airflow switch.
Replace CR2
relay.
Correct wiring
between motor
control relay
and airflow
switch.
Continued on
next page
COLUMN 2.
Replace motor
control relay.
Correct wiring
between
terminal 5
and supply
voltage.
T072D
T072D
70291301