Troubleshooting Section 55-4 Part No. 80-1214-3Gear Motor SpeedAnytime the motor speed sensor detects the motorspeed (rpm) is below the minimum range for3 continuous seconds, the ice machine will:1. De-energize the compressor and/or gear motor.2. Continuously flash the Gear Motor Speed light.3. Initiate a 60-minute Standby Mode.During the Standby Mode the Motor Speed Sensor lightwill flash to indicate a Standby Mode.After the 60-minute Standby Mode, the ice machine willde-energize the Motor Speed light and initiate a start-upsequence.Gear motor speed normal:The ice machine continues to make ice.Gear motor speed below minimum range for3 continuous seconds:The ice machine will start another 60-minute StandbyMode.If the gear motor speed drops below the minimum rangefor 3 continuous seconds during 7 consecutive cycles,the ice machine will initiate a SafeGuard Mode.During the SafeGuard Mode the Motor Speed Sensorlight will continually flash to indicate a SafeGuard Mode.The ice machine remains off until:• The toggle switch is moved from OFF to ICE.• Line voltage is interrupted and restored.INDICATOR LIGHTBefore 48 hours have elapsed:After a Standby Mode has been initiated the Gear MotorSpeed light will flash anytime the toggle switch is placedin the OFF position.After 48 hours have elapsed:The SafeGuard will be automatically erased frommemory and the Gear Motor Speed light will not flash.Gear Motor Speed ChecklistPossible Problem List Corrective Action ListLow water pressure Verify water pressure is between 20 and 80 psig.Defective motor speed sensor Replace motor speed sensor.Defective motor Replace motor.Defective coupler Replace coupler.Defective evaporator/auger assembly Replace evaporator assembly.Low voltage Verify voltage is within± 10% of nameplate voltage.Ice frozen to auger/evaporator Allow evaporator to thaw.Revised 8/2003Downloaded from www.Manualslib.com manuals search engine
