ALLIANCE T30 Series Troubleshooting Manual page 68

Electronic Control Troubleshooting
36. Will Not Run – Gas – Rotary Coin Drop (continued)
Is there voltage across
terminal 5 & 8 of the
motor control relay?
NO
Is there voltage across
terminals 1 & 4 of
fan motor?
YES
Does the fan motor
run?
YES
Is there voltage
across terminals 3 &
5 of the fan motor centrifugal
switch with the fan
motor running?
NO
Is there voltage to
terminal 6 on the
motor control relay?
YES
Is there voltage across
terminal 6 & 9 of the
motor control relay?
NO
66
YES
Replace motor
control relay.
Correct wiring
between fan
NO
motor and contact
8 on the motor
control relay.
NO
Replace the fan
motor.
YES
Replace fan
motor.
Correct wiring
NO
between terminal
6 and power
supply.
YES
Replace motor
control relay.
** Tested with the start switch pressed in.
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Is there voltage at
NO
terminals 1 & 4 of
the cylinder motor?
YES
NO
Does the cylinder
motor run?
YES
The cylinder and
fan motors are
operational.
Correct wiring
between cylinder
motor and contact
9 on the motor
control relay.
Replace the
cylinder motor.
T089D
T089D
70291301