Scotsman Ice FME804, NME454, NME654, FME504 manual Sensor Maintenance

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NME454, 654 & FME504, 804

SENSOR MAINTENANCE

1.The bin control is a device that senses light, therefore it must be kept clean so it can “see”. At least twice a year, remove the bin control sensors from the base of the ice chute, and wipe the inside clean, as illustrated.

2.The ice machine senses water level by a probe located in the water reservoir. At least twice a year, the probe should be removed from the reservoir, and the tip wiped clean of mineral build-up.

ICE LEVEL SENSORS

SLIDE TO REMOVE

CLEAN THE

LIGHT SENSORS

Clean the Probe's Tip with ice machine cleaner and a clean, soft cloth.

January 2007

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Contents NME454, 654 & FME504 IntroductionNME654 Dispenser Applications For the InstallerInstallation Limitations Fuse Charge Ampacity Size 404ASample BIN and Machine Combinations Location Water LimitationsFor the Installer Location Airflow NoticeFor the Plumber Use only ¾ rigid tubingFor the Electrician Final Check List There are no Adjustments to MAKE, so replace the panels Initial Start UPLow Pressure Cut Out Switch Component DescriptionNME454, 654 & FME504 On/Off mode Switch Manual control for Control BOX ComponentsAutoSentry Control Board Shut Down Electrical SequenceStart Up Control Board Protection DevicesOperation Water Water Level The correct water level should be Refrigeration Schematic Operation RefrigerationOperation Performance Cleaning & Sanitizing ICE Making System In place cleaningSanitizing Sensor Maintenance AIR Cooled Maintenance Clean the air cooled condenserHazardous Moving Parts Bearing Maintenance OffAt least two times per year Auger Maintenance Service Diagnosis Symptom Possible Cause Probable CorrectionSymptom Possible Cause Probable Correction Control System Diagnostics Removal and Replacement Bin Controls BIN Controls Ice Level SensorsRemoval and Replacement Bearing And Breaker To Remove the Breaker Bearing AssemblyAuger is Removal and Replacement AugerTo Remove the Auger Stuck,Removal and Replacement Water Seal To Remove the Water SealTo Replace the Water Seal Removal and Replacement Evaporator Heat sink the TXV body when unsweating orResweating the adjacent tubing Removal and Replacement Gear Reducer and Motor Refrigeration System Service Access Valves To useInstructions for Liquid Charging R-404A What to do Before Calling for Service If the machine is off, not making ice
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