Scotsman Ice MDT5N40, MDT5N25 Service Diagnosis, Symptom Possible Cause Probable Correction

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MDT5N25 & MDT5N40

SERVICE DIAGNOSIS

Symptom

Possible Cause

Probable Correction

No ice made, nothing operates

Unit off due to no power

Restore power

 

Unit off due to master switch in

Switch master switch to ON

 

OFF position

 

 

Unit off due to low water level

Check water supply, filter, strainer,

 

 

float valve. Correct water supply

 

Unit off due to ice level sensors

Check/clean ice level sensors

 

(photo-electric eyes) blocked

 

 

Unit off due to scale on water level

Clean water level sensor

 

sensor

 

 

Unit off due to water temperature

Thermistor will shut down unit at

 

too high

temperatures over 110oF.

Unit operates, no ice is vended

Check for ice in the bin

If no ice, check that ice maker can

 

 

make ice

 

 

Check that machine cannot keep

 

 

up with needs

 

Check for jam up of ice in

Pull chute down and allow ice to

 

dispense chute

fall out. Return chute to its normal

 

 

place.

 

If there is ice, check that the bin

Check for power to the bin drive

 

vane rotates. if not

motor, if none, check condition of

 

 

Touch-Free ice sensor.

 

If there is power to the bin drive

Disconnect electrical power,

 

motor, but the vane does not turn

remove all ice, check mechanical

 

 

condition of ice vane. Replace if

 

 

broken.

 

 

If ice vane is mechanically sound,

 

 

check bin drive, replace if broken.

Compressor on, auger motor is off

Auger motor windings open

Replace auger motor

 

Auger motor relay does not make

Replace circuit board

 

Contactor stuck

Replace contactor

Compressor does not operate

Off due to high pressure control

Check condenser, fan motor, fan

 

open

blade, or water supply on water

 

 

cooled.

 

Contactor coil is open

Replace contactor

 

Contactor contacts do not make

Replace contactor

 

Start capacitor failed

Replace start capacitor

 

Potential relay failed

Replace relay

 

Compressor windings open

Replace compressor

 

Compressor locked

Replace compressor

 

 

 

May 2001

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Contents Introduction Table of ContentsMDT5N25 & MDT5N40 Installation Limitations Service Limitations For the Installer Environmental LimitationsMinimum Maximum Water LimitationsMachine Stand Installation For the InstallerCounter Top or Machine Stand Installation Unpack and install the ice and water spoutsFor the Installer Wall Mount Kit Conform to ALL Applicable Codes For the PlumberFor the Electrician For the Installer Final Check List Initial Start UP Pre Start InspectionStart Up Component Description ICE Sweep Bearing Breaker Motor Evaporator Auger Water Seal Component Description Control Box On/Off Switch ManualCircuit Board Potential RelayElectrical Sequence Splash panel cleaningStart up consists Shut Down consistsOperation Water Operation Refrigeration Refrigeration SchematicContainer Operation Ice VendingDispense Area Sanitation Cleaning and Sanitizing Scotsman Ice Machine Cleaner contains acidsTo Sanitize Check and tighten all bolts and screws Moving Parts Hazard Maintenance and CleaningSymptom Possible Cause Probable Correction Service DiagnosisMDT5N25 & MDT5N40 Power Service Diagnosis Circuit BoardOff Timer Bin EmptyBIN Controls Ice Level Sensors Removal and ReplacementTo Remove the Breaker Bearing Assembly Removal and Replacement Bearing And BreakerTo Remove the Auger Removal and Replacement Water Seal To Remove the Water SealTo Replace the Water Seal For Access to the Evaporator to Gearmotor bolts To Replace the EvaporatorTo Reassemble the Evaporator and Auger To Remove and Repair the Gearmotor Assembly Electrical Shock HazardTo Inspect the gearmotor Do not USE Mineral OIL in this Refrigeration System Refrigeration Service R-404A HP62Refrigeration Service General InformationOnly a HFC type dryer should be used Printed Circuit Board Handling Precautions Circuit Board ServiceLiquid Charging Instructions for R-404A

MDT5N40, MDT5N25 specifications

The Scotsman Ice MDT5N25 and MDT5N40 models are part of a sophisticated line of ice machines designed for commercial use. These models stand out for their efficiency, reliability, and advanced technology, making them ideal for restaurants, bars, and other food service establishments that require a constant supply of ice.

One of the main features of the Scotsman MDT5N25 and MDT5N40 models is their ability to produce high volumes of ice quickly while maintaining energy efficiency. These machines are designed to provide a steady supply of ice, ensuring that businesses can meet the demands of their customers without interruption. The MDT5N25 can produce approximately 260 pounds of ice per day, while the MDT5N40 takes it a step further by producing around 450 pounds daily. These capacities make both models suitable for various applications, from small cafes to larger dining venues.

Both models are equipped with Scotsman’s proprietary EcoX technology, which enhances energy efficiency and reduces water consumption. This technology employs advanced engineering designs that minimize waste and optimize production cycles. This focus on sustainability not only helps reduce operational costs but also appeals to environmentally conscious businesses.

The MDT5N25 and MDT5N40 also feature a self-cleaning mechanism that simplifies maintenance and ensures consistent ice quality. The automatic cleaning cycle helps prevent limescale and bacteria buildup, providing peace of mind for operators who prioritize hygiene and food safety.

In terms of design, both models boast a compact footprint, making them suitable for establishments with limited space. They come with a built-in storage bin that efficiently holds large quantities of ice, streamlining operations and making it easy for staff to access ice when needed. The sleek stainless steel finish of the machines not only enhances their durability but also ensures they can blend seamlessly into any commercial kitchen environment.

The user-friendly control panel on both the MDT5N25 and MDT5N40 allows for easy adjustments and monitoring of the machine’s performance. Operators can easily keep track of production levels and patterns, ensuring they can manage their ice supply effectively.

In conclusion, the Scotsman Ice MDT5N25 and MDT5N40 models represent a robust solution for commercial ice production, combining efficiency, advanced technology, and ease of use. With their impressive output capacities, energy-efficient designs, self-cleaning features, and durable construction, these machines are perfect for businesses that rely on consistent ice production to meet their needs.