22
Model R280
Troubleshooting
The following is a list of errors that may occur, probable causes, and corrective action that may eliminate the problem.
If, after performing the corrective action, the problem persists, contact a service technician for assistance with these
errors.
Our Technical Support is available for assistance, providing product technical support, parts and parts information, and
service agent referral.
Error 1
The controller has detected a TIMEOUT ERROR FOR THE LEFT ACCUMULATOR MOTOR HOME SENSOR. The
accumulator home sensor sends an input to the controller each time the accumulator doors cycle. It lets the controller
know that the doors opened and closed in an acceptable time.
A Timeout Error could be caused by a disconnected or faulty accumulator encoder, a damaged encoder vane, broken
accumulator linkage, an accumulator motor fault, or a controller fault. Verify the accumulator encoder wiring at the
controller board is secure and the vane is in place and undamaged. Check accumulator linkage to ensure it is
undamaged.
Error 2
The controller has detected a TIMEOUT ERROR FOR THE RIGHT ACCUMULATOR MOTOR HOME SENSOR. The
accumulator home encoder sensor sends an input to the controller each time the accumulator doors cycle. It lets the
controller know that the doors opened and closed in an acceptable time.
A Timeout Error could be caused by a disconnected or faulty accumulator encoder, a damaged encoder vane, broken
accumulator linkage, an accumulator motor fault, or a controller fault. Verify the accumulator encoder wiring at the
controller board is secure and the vane is in place and undamaged. Check accumulator linkage to ensure it is
undamaged.
Error 3
The controller has detected a LARGE SHIFT IN THE TARE (EMPTY) READING FOR THE LEFT SIDE’S SCALE
INPUT. Could be caused by an obstruction of the scale or loss of calibration. Verify the accumulator housings and flap
doors are properly assembled. Check accumulator doors to ensure there are no obstructions (e.g. fries jammed
underneath). Verify the shaft collars are pushed back to the e-clips near the back wall. If no obstruction is found,
calibrate the scale. See Calibrations and Adjustments on page 29.
Error 4
The controller has detected a LARGE SHIFT IN THE TARE (EMPTY) READING FOR THE RIGHT SIDE’S SCALE
INPUT. Could be caused by an obstruction of the scale or loss of calibration. Verify the accumulator housings and flap
doors are properly assembled. Check accumulator doors to ensure there are no obstructions (e.g. fries jammed
underneath). Verify the shaft collars are pushed back to the e-clips near the back wall
.
If no obstruction is found,
calibrate the scale. See Calibrations and Adjustments on page 29.
Error 5
The controller has detected the CABINET TEMPERATURE IS NOT COOLING AS EXPECTED. Likely causes are
leaving the cabinet door open for extended periods of time during operation or the power was left on while defrosting
the cabinet. Other possible causes are a restriction to the airflow across the condensing unit such as might occur with
a dirty or plugged condenser filter and/or coil, a faulty temperature probe, or a malfunction of the refrigeration
compressor. Check for obstructions near the condensing unit inlet grill and inspect and clean the condenser filter and/
or coil if needed. See Cleaning the Condenser Filter and Coil on page 50. Call a
service technician
for assistance
† (see
note below to reset error).
