Manitowoc RF0399A

Part Number 000007661 6/13 133
RN1000/RN1400 Troubleshooting
NOTE: Refer to “RN1000/RN1400” on page 36 for
normal sequence of operation
INDICATOR LIGHT OPERATION
The lights on the control board can be used as quick
failure mode indicators. If the failure mode isn’t
obvious from the light indicators, use the flowchart to
systematically eliminate issues.
NOTE: Each relay on the control board has a light
adjacent to the relay to indicate the relay coil has
power.
Indicator light legend
1. Normal light operation, No Ice
• Defective compressor or start component
• Defective contactor
• Defective control board relay
2. CPU light does not flash
• Defective control board
ON OFF ON or OFF FLASHING
PURGE (Y)
POWER (G)
LOW BIN (G)
AUGER ON (G)
REFRIG ON (G)
CLEANING (Y)
SERVICE (R)
HI AMPS (R)
HI PRESS (R)
LO PRESS (R)
DRAIN CLOG (R)
TIME DELAY (Y)
LO WATER (R)
CPU (G)
HI WATER (R)
PURGE (Y)
POWER (G)
LOW BIN (G)
AUGER ON (G)
REFRIG ON (G)
CLEANING (Y)
SERVICE (R)
HI AMPS (R)
HI PRESS (R)
LO PRESS (R)
DRAIN CLOG (R)
TIME DELAY (Y)
LO WATER (R)
CPU (G)
HI WATER (R)