Grindmaster MG236-2B, MG23-2B, MG235-2B Troubleshooting Guide cont’d, Dispensing valve

Page 18

Troubleshooting Guide (cont’d)

Problem

Possible Cause

Solution

 

 

 

Product is leaking from the

• The dispensing valve has been incom-

• Reassemble and replace

dispensing valve

pletely or incorrectly replaced in its

 

 

position

 

 

• The free movement of the dispensing

• Clean and lubricate the valve and

 

valve is impeded

valve cylinder with the lubricant pro-

 

• Dispensing valve o-rings are damaged

vided with the machine

 

• Replace the o-rings

 

 

 

Product is flowing into drain tray

• The bell shaped “shaft” seal between

• Find the seal and put it back in place

through drainage tube

the front of the cylinder and the auger

 

 

hub has not been reinstalled properly

 

 

• The bell shaped “shaft” seal or the

• Replace the damaged/worn seal and

 

spindle bushing seal is damaged or

check the condition of the driveshaft.

 

worn

 

The auger and/or the upper mixing

• Auger not turned on

• Turn auger on

 

unit is not turning

• Some electrical connections are not

• Check the contacts and correct the

 

 

complete

ones that are incomplete

 

 

 

• The gear motor(s) are malfunctioning

• Replace the gear motor(s)

 

 

 

 

 

The auger and/or the upper mixing

• The large red bowl seal is not in

• Check and correct

 

position, causing the gear teeth not to

 

units are creating noises as they

 

mesh

 

rotate

 

• The product brix is incorrect

• Check the product brix and correct

 

 

 

 

• The bell shaped “shaft” seal has been

• Replace or Clean and lubricate with

 

 

 

replaced without lubrication or is dam-

the lubricant provided with the

 

 

 

aged

machine

 

 

 

• The auger has been incompletely or

• Check and correct

 

 

 

incorrectly reassembled (ie the

 

 

auger’s gear pins are not properly

 

 

seated)

 

There is no light in the

• The light bulb is burnt out

• Replace (See “Changing the lightbulb”

merchandising lid or rear

 

section in this manual)

 

 

merchandising panel

• The 5 Amp fuse between the trans-

• Replace

 

former and the lamp is blown

 

 

• The transformer is blown

• Replace

 

 

 

The cover does not fit properly on

• The bowl is incorrectly positioned (the

• Remove bowl and position properly

the bowl

lower, outside corner is not over the

 

 

lower, outside base piece)

 

“Filtr” or “Err” message appears on

• The filter is dirty and needs to be

• Clean and replace filter following

the touchpad LED readout

cleaned

instructions on page 11 (Removing

and Cleaning Filter)

 

 

 

• The unit is positioned too close to a

• Reposition unit to maximize ventilation

 

wall or other object restricting air flow

space (see page 2 - installation figures)

 

and causing the machine to run at a

 

 

higher temperature

 

 

• The filter is not properly installed

• Properly install filter see “Removing and

 

 

cleaning filter” page 11

 

• The unit has been installed near a

• Reposition unit to maximize ventilation

 

heat source, such as a coffee

space (see page 2 - installation figures)

 

 

 

machine, ice maker or cold beverage

 

 

machine which expels hot air from its

 

 

vents, causing the machine to run at a

 

 

high temperature. (Installation near a

 

 

heat source should be avoided)

 

 

 

 

If you still need help, call our service department at (800) 695-4500 (USA & Canada only) or (502) 425-4776 (Monday through Friday, 8 am - 6 pm EST) or an authorized service center in your area. Please have the model and serial numbers ready so that accurate information may be given.

Prior authorization must be obtained from Grindmaster Corporation’s Technical Services Department for all warranty claims.

Page 18

G & MG Series Granita Machine

 

 

Page 17 Page 19
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Page 17 Page 19
Contents Crathco Visual Granita Machine Installation Introduction and Warnings Instructions For Machine TransportConnection To Main Power Supply Figure FOperating Panel -Electronic Touchpad Preparing ProductOperating Panel Programming G Series Electronic Touchpad ModelsSetting Defrost Timer Night Setting Model G23-2B Electronic TouchpadOperate in Automatic Mode with Defrost Timer Activated Operate in Manual Mode without Defrost Timer ActivatedTo obtain a slush Stand-by mode settingDefrost Timer Operating Instructions To obtain cold night/defrost drinksAdjustments Consistency AdjustmentDispensing Product Cleaning and Sanitizing Procedures Daily CleaningCleaning and Sanitizing Procedures con’t Rectly positionedMaintenance Removing and cleaning the filter WeeklyReplacing the Lightbulbs As Needed Maintenance con’tCleaning the Condenser Monthly Lid LightsSpindle Bushing Seal Seal Maintenance Bell Shaped SealRing Maintenance To Replace Spindle BushingCrathco Granita Preventive Maintenance PM Checklist for Kit Serial # 11259 and aboveIf unit has been converted to unhardened Maintenance PMCrathco Granita Preventive Stainless shaft system, then use kit #90566Accessories not included Security Kit InstallationAutofills Troubleshooting Guide Problem Possible Cause SolutionTroubleshooting Guide cont’d Dispensing valveExploded View MG23-2B 115/60 For units up to serial numberExploded 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 Crathco Granita G & MG Series Parts List Part DescriptionGear 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

G23-2B, G235-2B, G236-2B, MG235-2B, MG23-2B specifications

The Grindmaster lineup, which includes models MG236-2B, MG23-2B, G236-2B, G23-2B, and MG235-2B, represents a significant advancement in commercial coffee grinding technology. These machines are designed for high-performance grinding capabilities in coffee shops, cafes, and other businesses that require consistent and efficient results.

One of the defining features of the Grindmaster MG236-2B and its counterparts is their superior grinding consistency. Each model is engineered to produce uniform particle sizes, which is essential for optimal extraction during brewing. This consistency not only enhances flavor but also ensures that customers receive a high-quality coffee experience every time.

These machines are equipped with advanced grinding technology, including high-quality burr grinders that effectively reduce heat generation during operation. This is critical as excessive heat can negatively impact the flavor and aroma of the coffee beans. The functionality focused on maintaining the integrity of the coffee's essential oils, allowing baristas to extract the best flavors from their beans.

Durability is another hallmark of the Grindmaster MG series. Made from robust materials and designed for heavy-duty use, these grinders can withstand the rigors of a busy commercial environment. The models are also easy to clean and maintain, featuring accessible components that simplify routine servicing.

User-friendliness is considered in their design. Each model comes with intuitive controls that allow baristas to adjust grind settings easily. This flexibility helps in catering to various brewing methods, from fine grinds for espresso to coarser settings for French press or pour-over brewing.

Moreover, the Grindmaster MG236-2B and similar models are designed to minimize noise during operation, which is a crucial feature for maintaining a pleasant atmosphere in customer-facing environments.

In addition to these personal features, the Grindmaster lineup also emphasizes energy efficiency. The machines are designed to consume minimal power without compromising performance, making them a cost-effective choice for businesses aiming at sustainability.

Overall, the Grindmaster MG236-2B, MG23-2B, G236-2B, G23-2B, and MG235-2B models represent cutting-edge technology in coffee grinding. Their combination of consistency, durability, user-friendliness, and energy efficiency makes them ideal for any coffee-centric business looking to elevate their brewing game and provide an exceptional coffee experience for their customers.
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