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Electronic Control Troubleshooting
34. Will Not Run – Electric – Rotary Coin Drop (continued)
T073D
Replace fan
motor.
YES
Is there voltage across
terminals 1 & 4 of
fan motor?
NO
Correct wiring
between fan
motor and contact
8 on the motor
control relay.
Does the fan motor
run?
Replace the fan
motor.
NO
YES
Replace motor
control relay.
Is there voltage across
terminal 5 & 8 of the
motor control relay?
YES
NO
YES
Is there voltage to
terminal 6 on the
motor control relay?
Correct wiring
between terminal
6 and power
supply.
NO
NO
YES
For units without time
delay boards.
COLUMN 1
Replace motor
control relay.
Is there voltage across
terminal 14 & 13 of
motor control relay?
COLUMN 2
Correct wiring
between L1, L2
and supply.
Is there voltage to L1 &
L2 terminals on motor
control relay?
Replace motor
control relay.
Is there voltage to T1 &
T2 terminals on motor
control relay?
YES
NO
NO
YES
NO
YES
Continued on next
page COLUMN 1.
Is the machine
supplied with single
phase or three phase
power?
Single phase
Three phase
Refer to Note.
Is there voltage to
L2 & L3 terminals
on motor control
relay?
Correct wiring
between supply
and L2 & L3
terminals.
NO
YES
Is there voltage
across L2 to T2 and
L3 to T3?
YES
NO
Replace motor
control relay.
Replace cylinder
motor.
Does the cylinder
motor run?
NO
YES
CYLINDER AND
FAN MOTORS ARE
OPERATIONAL.
NOTE: For Hi voltage three phase supply
(380volts or higher), the cylinder and fan motor
are supplied L1, L2, L3 through the motor relay
terminals T1, T2, T3. Make the appropriate
adjustments when doing trouble shooting.
T073D
Is there
voltage across
terminals 3 & 5 of
the fan motor
centrifugal switch with
the fan motor
running?