44 F232205
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Troubleshooting – B-Control Coin Models
11.The Display Shows “CANt/LOC” or “SHUT/DOOR”: Flowchart 1
Before beginning the troubleshooting, be sure that the IDC Harness Kit (Part No. F200189300 [all voltage
models except C-voltage] and F200189301 [C-voltage models]) has been installed onto the machine.
NOTE: If, after troubleshooting with this flowchart, the display still reads “CANt/LOC” or “SHUT/DOOR”,
go to “The Display Shows “CANt/LOC” or “SHUT/DOOR”: Flowchart 2”
NO
NO
Is there
voltage (220
Volts AC) from the
door closed microswitch**
input to the ACN1 tab
on the output board?
See Figures
8 and 15.
YES
YES
Is
there a
pulse voltage***
between the blue
and orange wires
of the door lock
solenoid? See
Figure
9.
Power down the machine*
and take an ohm reading at
the door lock solenoid.
Are the following ohm
readings present?
Door Unlock Circuit:
65 ohms (+/- 10%) between
the black/blue wire and the
black wire (See Figure 10)
Door Lock Circuit:
264 ohms (+/- 10%) between
the orange and blue wire
(See Figure 11)
NO
Is
the RT1
thermistor on the
output board
cracked? See
Figure 12.
Replace the output board.
NO
Check the wiring connections
from the output board to the
door lock solenoid.
YES
Replace the door lock
solenoid.
NO
YES
Power
down the
machine* and take an
ohm reading between the
two ends of the the RT1 thermistor.
See Figure 12.
Is the ohm reading
between
90-150?
NO
YES
YES
Are
the DL and DU
lights on the output
board staying on
constantly? See
Figure 12.
NO
YES
Check the wiring connections
from the output board to the
door lock solenoid.
Check the wiring to the
door magnetic switch. Check
the magnet and the door
magnetic switch. Repair/replace
the wiring, magnet and/or switch
as needed.
NO
START
Are
the door, door
handle and door
lock assemblies
adjusted
properly?
Power down the machine*
and adjust the door, door
handle and door lock
assembly as needed.
Is
there oxidation
on the silver
terminal of the door
locked microswitch?**
Refer to
Figure 7.
Is
the door
magnetic switch
closing when the
door is
closed?
YES
Clean the silver terminal
on the door locked
microswitch.**
NO
YES
Repair/replace the wiring
to the door closed
microswitch as needed.
Make sure that the IDC
Harness Kit has been
installed onto the machine.
Is
there
voltage (220
Volts AC) from the
door closed microswitch**
output to the ACN1 tab
on the output board?
See Figures
8 and 15.
Replace the door closed
microswitch.
NO
YES
CHM449S
WARNING
When powering the machine down, allow time
(3 minutes) for the door lock capacitor to
discharge.
*
IMPORTANT
The door locked microswitch and the door closed
microswitch are not the same switch. The door
locked microswitch is a 5 Volt switch while the door
closed microswitch is a 220 Volts AC switch.
**
IMPORTANT
The pulse voltage lasts for approximately 1/10
of a second. During the pulse, the needle of an
analog voltmeter will deflect briefly.
***
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