Concordia XPRESS - NO MILK REAR Error; R DRIVE TIMEOUT Error; R SENSOR FAIL Error; REFR AMPS HI Error

3033-014B Section 14: Messages
Concordia Xpress Technical Support Manual 14-5
2900-300B
DISPLAY
MESSAGE
PROBABLE CAUSE
CORRECTIVE ACTION NEEDED
NO MILK-
REAR
Rear milk count is 75 or
lower.
Verify milk level.
Verify milk weight tray is properly
installed and calibrated.
R DRIVE
TIMEOUT
Right piston took too long to
complete a movement.
Check right drive components.
R SENSOR
FAIL
Right piston reference
sensor has failed or is out
of position.
Check the right piston reference
sensor for correct position and
proper operation.
REFR AMPS
HI
Refrigeration unit current in
excess of 14.5amps.
Verify DC supply voltage to
refrigeration unit module.
Verify refrigeration unit module
operation.
REFR AMPS
LO
Refrigeration unit current is
below 10amp.
Verify DC supply voltage to
refrigeration unit module.
Verify refrigeration unit module
operation.
REFR TEMP HI
Refrigeration unit door
open.
Check door for proper seal.
Refrigeration unit fan
failure.
Replace fan.
Verify fan is operating and
unobstructed, replace if necessary.
Verify ambient temperature is below
84˚F (29˚C).
See Section 15: Troubleshooting for
detailed instructions.
Air filter blocked.
Change filter.
Short circuit on refrigeration
temperature sensor.
Navigate to CHK
TEMPERATURES >
REFRIGERATOR and verify
temperature.
Shorted sensor = 67.3°F (20°C).
Thermal chip failure.
Check DC board LEDs D17, D18,
D19.
Verify operation of thermal chip.
REFR TEMP
LO
Open circuit on refrigeration
unit temperature sensor.
Navigate to CHK
TEMPERATURES >
REFRIGERATOR and verify
temperature.
Open sensor = 0.8°F (-17°C).
See Section 15: Troubleshooting for
detailed instructions.
REFR DOOR
OPEN
Door to the refrigeration
unit is open.
Close refrigeration unit door.
Verify door seal is in good
condition.