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Troubleshooting
49. CD Models: No Start With Vend Satisfied and Start Button Pushed
208-240 Volt/60 Hertz/3 Phase Gas Nonreversing
NOTE: All voltage checks are referenced to neutral unless stated otherwise.
CD Models: No start with
vend satisfied and start
button pressed in
Is there
voltage to the COM
terminal of
switch A?
TMB2176S-a
Correct wiring
between L1 and
switch A.
No
Is there
voltage to the NC
terminal of
switch A?
Check for proper
operation of
switch A. Replace
switch A if
necessary.
Is there
voltage to the common
terminal of the
door switch?
Correct wiring
between door
switch and
switch A.
With
the door closed,
is there voltage to the
N.O. terminal of the
door switch?
Check door switch
for proper
operation, replace
if necessary.
Is
there voltage
to the input side of
the Push-To-Start
button?
Correct wiring
between start
switch and door
switch.
Is
there voltage
to the input side of
the auxiliary contacts
on the motor
contactor?
Correct wiring
between
motor
contactor and
door switch.
Is
there voltage
across the coil of
the motor control
contactor?
Correct wiring
between motor
contactor and
Push-To-Start
button.
If
the start
button is released,
does the motor
contactor stay in
the made
position?
Check for
proper
operation of
motor
contactor,
replace if
necessary.
Yes
No
Yes
No
Yes
No
No
No
Yes
No
Yes
No
Yes
Yes
Is
there voltage
to L1, L2 and L3
of the motor
contactor?
Correct wiring
between motor
contactor and
L1, L2 and L3
supply.
Yes
No
Continued on
next page
Yes
Summary of Contents for ATB50CG
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