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146 Part Number 000007661 6/13

RN1000C/RN1200C Troubleshooting

NOTE: Refer to “RN1000C/RN1200C” on page 39 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)