Grindmaster G & MG Series Troubleshooting Guide, Problem Possible Cause Solution

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Troubleshooting Guide

The following procedures must be performed by a qualified service technician.

Problem

Possible Cause

Solution

 

 

 

The machine does not cool, or cools

• The space around the machine is

• Allow at least 8” (20cm) between the

only partially, but the compressors

inadequate for ventilation

machine and anything next to it; keep

are running

 

away from heat sources

 

• Freezer is in defrost

• Return to freeze mode

 

• The condenser fins are clogged with

• Remove the side panels. Using a

 

airborne particles

brush or compressed air clean the

 

 

condenser

 

• Fan motor is not running

• Check the fan motor’s electrical

 

 

connections and, if disconnected,

 

 

reconnect. If still not operating,

 

 

replace the motor

 

• Refrigerant is leaking

• Locate the leak, eliminate it and

 

 

recharge the system

 

 

 

The machine does not cool or cools

• Electrical components of the

• Replace the malfunctioning

only partially, but one or more of the

compressor(s) are not functioning

components

compressors are not running

• Some electrical connections are not

• Check the contacts and correct those

 

complete

that are incomplete

 

• One or more of the compressors are

• Replace the compressor(s)

 

malfunctioning

 

 

• No current is coming to the “com-

• Check the electrical connections to

 

pressor delay” PC board

the PC board as well as the

 

 

transformer feeding the PC board

 

 

and correct

 

 

 

The machine over-freezes, making

• The product brix is too low

• Check the product brix and correct

the auger movement slow or

• The screw setting for the product

• Reset the screw toward the “-”

stopped

consistency control system is set too

position to produce a thinner

 

far toward the “+” position

consistency product

 

• The limit switch arm is bent away

• Using pliers, straighten the limit switch

 

from the gearmotor and prevents

arm

 

contact

 

 

• The level of the product in the bowl is

• Add more product or turn the

 

too low, exposing the auger

refrigeration “Off”

 

• The compressor PC board contacts

• Replace the PC board

 

don’t open

 

 

 

 

The machine is noisy

• The fan motor blades are hitting

• Check and correct

 

internal components

 

 

 

 

The main power switch is “On”. The

• The fuse(s) are blown

• Replace the fuse(s)

unit is not running.

• The pressure cutout switch has

• Clean the condenser or add

 

activated

ventilation space around the machine

 

 

(the cutout switch reset is automatic

 

 

when the conditions are corrected)

 

• Some electrical connections are not

• Check the contacts and correct those

 

complete

that are incomplete

 

• The main power is not functioning

• Replace the switch

 

 

 

Product is leaking out of the bowl

• One of the bowl seals is not in place

• Replace or reposition the seals

 

 

 

G & MG Series Granita Machine

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Image 17
Contents Crathco Visual Granita Machine Introduction and Warnings Instructions For Machine Transport InstallationFigure F Connection To Main Power SupplyOperating Panel Preparing ProductOperating Panel -Electronic Touchpad Programming G Series Electronic Touchpad ModelsModel G23-2B Electronic Touchpad Setting Defrost Timer Night SettingOperate in Manual Mode without Defrost Timer Activated Operate in Automatic Mode with Defrost Timer ActivatedDefrost Timer Operating Instructions Stand-by mode settingTo obtain a slush To obtain cold night/defrost drinksDispensing Product AdjustmentsConsistency Adjustment Daily Cleaning Cleaning and Sanitizing ProceduresRectly positioned Cleaning and Sanitizing Procedures con’tRemoving and cleaning the filter Weekly MaintenanceCleaning the Condenser Monthly Maintenance con’tReplacing the Lightbulbs As Needed Lid LightsRing Maintenance Seal Maintenance Bell Shaped SealSpindle Bushing Seal To Replace Spindle BushingChecklist for Kit Serial # 11259 and above Crathco Granita Preventive Maintenance PMCrathco Granita Preventive Maintenance PMIf unit has been converted to unhardened Stainless shaft system, then use kit #90566Autofills Accessories not includedSecurity Kit Installation Problem Possible Cause Solution Troubleshooting GuideDispensing valve Troubleshooting Guide cont’dFor units up to serial number Exploded View MG23-2B 115/60Exploded View G23-2B 115/60 Serial number 8195 and higher Exploded View MG23-2B 115/60 Exploded View G235-2B 220/50 Exploded View MG235-2B 220/50 Exploded View G236-2B 220/60 Exploded View MG236-2B 220/60 Part Description Crathco Granita G & MG Series Parts ListGear Motor Exploded View Refrigeration Diagram Model G Series 115V/220V Refrigeration Diagram Model MG Series Electrical Diagram Model MG Series Electrical Diagram Model MG Series Electrical Diagram Model G Series 115V/220V Page

G & MG Series specifications

Grindmaster G & MG Series showcases a remarkable innovation in the world of coffee grinding technology, blending efficiency, durability, and performance to meet the needs of coffee enthusiasts and professionals alike. These grinders are designed to deliver a superior grinding experience, ensuring that every bean is ground to perfection.

One of the standout features of the Grindmaster G & MG Series is its grinding consistency. Utilizing advanced burr grinding technology, these machines maintain an even grind size, essential for achieving the ideal flavor extraction in every brew. The series includes both flat and conical burr options, allowing users to select the type that best matches their brewing method. This versatility is critical for accommodating a range of coffee styles, from espresso to French press.

Another key characteristic of the G & MG Series is its user-friendly interface. Featuring intuitive controls and clear display options, operators can easily adjust grind settings to achieve their desired consistency. The timers and dosing controls enable precise measurements, ensuring that every cup is brewed with the exact amount of coffee needed for optimal taste.

Durability is a hallmark of the Grindmaster brand, and this series is no exception. Built with robust materials, the G & MG Series is designed to withstand the demands of high-volume coffee environments, such as cafes and restaurants. The components are engineered for longevity, minimizing maintenance downtime and ensuring that the grinder remains a reliable tool in any setting.

Furthermore, the Grindmaster G & MG Series integrates innovative technologies to enhance user experience. The models are equipped with noise-reducing features, making them suitable for environments where quiet operation is essential. Additionally, some models in the series offer advanced thermal stability technology, which helps maintain consistent performance without overheating.

In terms of design, the G & MG Series showcases a sleek, modern aesthetic that fits seamlessly into any café or kitchen decor. The grinders are available in various colors and finishes, allowing business owners to choose a look that aligns with their brand identity.

In conclusion, the Grindmaster G & MG Series stands out as a top choice for coffee grinding, combining advanced technology, user-friendly features, and robust construction. Whether for home use or commercial applications, these grinders provide an exceptional grinding experience, ultimately elevating the quality of coffee served.