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Alarm Troubleshooting
312776F 87
E-12: CAN COMM ERROR ALARM
Cause Solution
Communication between the Color Change Module and
the Fluid Station is interrupted.
• Verify that all cables are connected securely and that
the Color Change and Booth Control power LEDs
turn on. If the power LED does not turn on, the prob-
lem is probably caused by a bad connection. The nut
on the connector must make at least 5 complete
turns to ensure a good connection. If the power LED
still does not light, the cable or board is bad.
• Check the color change board DIP switch settings.
See the Installation manual.
• Check the fluid plate board DIP switch setting. An
incorrect setting will not cause E-12 alarms, but a
correct setting will help prevent E-12 caused by elec-
trical noise. See the Installation manual.
• Check EasyKey software version (displayed at
power up for all versions and when the lock key is
pressed for version 2.02.000 and above). If older
than 1.06.002, upgrade. Be sure to save settings
through BWI or AWI before upgrading, as they will
be erased.
• The sticker on the color change board shows the
software part number and version, for example
15T270 1.01. If the version is older than 1.01,
replace the board.
• If all software versions and DIP switch settings are
correct and you still have E-12 alarms, then the sys-
tem has a bad connection, bad cable, or bad circuit
board. Use a multimeter on the CAN connectors to
test whether there is a good connection between
systems. If there is, you have a bad circuit board. If
there is not, you have a bad connector, connection,
or cable.
• Appears on the EasyKey display if the unit is pro-
grammed for Manual Mode, and a booth control is
not connected.
• The dip switch settings on the Color Change Module
were changed (see manual 312787) while the power
was on. Cycle the power to clear the alarm.
• The dip switch configuration on the Color Change
Control Module (see manual 312787) is setup incor-
rectly.
Communication between the Color Change Module and
the Fluid Station is interrupted. The fluid control board
fuse is blown.
Verify condition of fuse and replace if necessary. See
Repair-Parts manual.
Communication between the Booth Control and the Fluid
Station is interrupted.
Verify that the cable is correctly connected.
Table 11. Alarm Troubleshooting