Diagnostics Guide For The Main Control Board; Motor Removal - Cornelius IDC 255 Service Manual

M R
OTOR EMOVAL
NOTE: Apply anti-seizing lubricant to the
threads of mounting bolts when service
is required.
D G
IAGNOSTICS UIDE FOR THE
NOTE: Refer to Figure 23.
Observed State
State
of Red LED
0 Flash rate 3
seconds
1 Flash rate
1/2 second
2 Flash rate
1/2 second
3 Flash rate
1/2 second
4 Flash rate 1
second
5 ON
continuously, but
"flickers" every 3
seconds
6 ON continuously Entered when pump has run
© 2006-2013, IMI Cornelius Inc.
M
AIN
Sensor Input
Both probes read "wet"
Pump is OFF and HIGH probe
reads "dry" and LOW probe
reads "wet"
Both HIGH and LOW probes
read "dry"
Entered when HIGH probe
does not detect liquid, and
LOW probe does detect liquid,
and pump is ON
Entered when HIGH probe
reads "wet" and LOW probe
reads "dry"
Poor signal connection to the
carbonator tank. May result in
short cycling of the carbonator
pump.
continuously for 5 minutes
IDC 255 Progate Drive Thru Service Manual
C B
ONTROL OARD
Control Response
Standby mode. Pump =
OFF
Waiting for level to drop
below LOW probe.
Pump = OFF
Normal mode.
Pump = ON
Normal mode.
Pump = ON
This is an error
condition.
Able to continue to
function but carbonator
pump short-cycles.
Pump will come on
each time a drink is
drawn. THIS
SITUATION SHOULD
BE CORRECTED.
THIS IS AN ERROR
CONDITION.
- 25 -
Figure 28.
Service Remedy
No service required
No service required
No service required
No service required
- Check electrical
connections at the
carbonator tank, and at
connector J4 on the main
control board
- Black wire should be
connected to the LOW probe
and also to Pin 4 of
Connector J4
- Reverse the connections if
incorrect
- Replace harness if
necessary
Check the harness
connections of the red signal
wire at both ends:
1) at the carbonator ring
terminal and
2) at Pin 5 of the J4
connector at the main
control board
Unplug the unit and plug it
back in. This will reset the
unit's main control board and
restart the carbonator pump.
Publication Number: 621057419SER