DIGITAL MERCHANDISER
56X/77X MODELS
22
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Error
Possible Causes
How to Fix
U143 Relay blows, 4A fuse
from the E-Box blows, and
possibly even 5V power
supply shorted out.
Note
: The old-initial 20-
pin door harness has been
seen to cause shorting
due to the spade terminal
ends not clipped correctly,
exposing the terminals to
the conductive metal on the
back of the LCD.
1. Disconnect the in-line rectifier harness
(pushbutton dispense harness) from inside the
dispenser (it is more difficult to replace the
internal door harness).
• Replace the relay board.
• Replace the 4A fuse.
• Check to see if the 5V power supply for the
Android board is operational (outputs 5V),
and replace if necessary.
2. If needed, replace the entire merchandiser.
FBD merchandiser app is
not shown on-screen and
the clock app (shown on the
left) or the app menu (shown
on the right) is displayed.
Note
: Either of these
screens indicate the FBD
app has crashed.
1. Be sure the latest software version is loaded. If
not, replace with the most up to date version.
2. Go into service mode on the application and
press the warning icons
• ADA keypad cannot be found:
–
Keypad is not properly inserted;
reconnect the keypad and test.
–
Faulty keypad; keypad needs to be
replaced.
• ADA adapter cannot be found:
–
Keypad is not properly inserted;
reconnect the keypad and test.
–
Faulty keypad; keypad needs to be
replaced.
The touchscreen is not working: there is
no way to select flavors, access service
mode, or exit the FBD application.
Various
1. Be sure the USB touchscreen cable is connected
both on the Android board and LCD screen.
2. Be sure the latest software version is loaded. If
not, replace with the most up to date version.
3. Be sure that the correct door harness,
P/N 12-3116-0177, not 12-3116-0168, is
installed inside the door.
