Troubleshooting Guide

If machine is not operating properly, check the following list for possible solutions. Only a qualified service technician should perform electrical and mechanical adjustments or repairs. Always disconnect power before attempting any maintenance procedures.

Problem

 

Probable Cause

 

Remedy

Machine won’t run (no lights,

•

Machine not plugged into wall receptacle

•

Plug machine directly into outlet. Do not

not motor)

 

 

 

use extension cord.

 

•

Building circuit breaker tripped or fuse

•

Place circuit breaker in the ON

 

 

blown

 

position or replace fuse

 

•

Switches in wrong position

•

Turn lower panel Power Switch to ON,

 

 

 

 

Control Switch to OFF and freezer switch

 

 

 

 

to ON.

Machine will not freeze

•

Dasher assembly not installed

•

Install dasher assembly

 

•

Drive belt broken or off pulley

•

Repair or replace

 

•

Inadequate airflow

•

Allow 6” (15cm) on both sides

 

•

Freezer in CLEAN position

•

Switch to ON

 

•

Mix low light on indicating an out of condition

•

Correct out of condition (syrup, water,

 

 

 

 

alcohol, or CO2)

 

•

Condenser clogged

•

Clean condenser

 

•

Compressor not operating

•

Check for cause and correct

 

•

Low refrigerant charge

•

Check for leaks, repair and recharge

 

•

Improper expansion valve setting

•

Adjust within specifications

 

•

Defrost timer set

•

Wait for defrost cycle to end

 

 

 

 

 

Product too soft (thin)

•

Consistency adjuster too thin

•

Readjust consistency firmer

 

•

Too much alcohol

•

Readjust alcohol flow control

 

•

Product BRIX level too high

•

Check water and syrup flow controls for

 

 

 

 

proper test volume

 

 

 

 

 

Product too thick (firm)

•

Consistency adjuster set too firm

•

Readjust consistency setting thinner

 

•

Too little alcohol

•

Increase product BRIX level and check

 

 

 

 

product feed

 

•

Product BRIX level too low

•

Increase product BRIX level

Product will not dispense

•

Power switch OFF

•

Turn power switch ON

 

•

MIX LOW light on

•

Refill empty product

 

•

Drive belt broken or off pulley

•

Repair or replace

 

 

 

 

 

Leakage from drip tube

•

Worn out or defective drive shaft seal

•

Replace seal and then lubricate at each

 

 

 

 

cleaning

 

 

 

 

 

Excessive Dispensing Valve

•

Worn or defective o-ring(s)

•

Replace and lubricate at each cleaning

Leaks

 

 

 

 

Clicking sound from inside the

•

Low voltage

•

Use dedicated circuit with proper rating

machine

•

Extension cord is used

•

Connect directly to power source or use

 

 

 

 

power cord of proper size

Thumping sound from inside the

•

Worn belt

•

Replace belt

machine

•

Low alcohol content

•

Check mix

 

 

 

 

 

Product does not feed

•

Low CO2 pressure

•

Check bottle and regulator

 

•

Product pumps defective

•

Replace pumps

 

•

Carbonator pump defective

•

Replace pumps

 

•

Transformer defective or transformer

•

Replace transformer or reset transformer

 

 

overload tripped

 

circuit breaker

 

•

Solenoids defective

•

Replace solenoids

 

 

 

 

 

Premature seal wear

•

Incorrect installation of dasher

•

Advise careful installation

 

•

Improper drive shaft clearance

•

Adjust to proper clearance

 

 

 

 

 

If you still need help, call an authorized dealer in your area or GCS’ Technical Service Department. You can reach Technical Service at (800) 425-4776 Monday-Friday, 8:00 AM-6:00 PM Eastern Standard Time. Please have the model and serial number ready so that accurate information can be given.

Prior authorization must be obtained from Grindmaster Crathco Systems’ Technical Service Department for all warranty claims.

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Crathco Beverage Freezers

 

 

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Grindmaster 6321L service manual Troubleshooting Guide, Problem Probable Cause Remedy

6321L specifications

The Grindmaster 6321L is an advanced commercial coffee grinder designed for coffee shops, cafes, and restaurants that demand efficiency, consistency, and superior quality in their coffee preparation process. Known for its robust design and innovative features, the Grindmaster 6321L stands out in the competitive coffee grinding market.

One of the main features of the Grindmaster 6321L is its precision grinding capability. The grinder utilizes 1.5-horsepower commercial-grade motors combined with stainless steel burrs, ensuring a consistent grind size for various coffee beans. This precision is crucial for brewing high-quality coffee, as it affects the extraction and ultimately the flavor profile.

Another significant characteristic of the 6321L is its user-friendly interface. The grinder is equipped with an intuitive digital display, allowing baristas to adjust settings with ease. Users can customize grind settings to achieve their desired coarseness or fineness, catering to different brewing methods such as espresso, drip, or French press. The presets enhance operational efficiency, reducing the time spent on adjusting grind sizes during busy service hours.

The Grindmaster 6321L also features a large-capacity hopper capable of holding a significant amount of coffee beans, minimizing the need for frequent refills. This characteristic is particularly advantageous in high-volume coffee environments, ensuring uninterrupted service. Additionally, the grinder is built with a sound-dampening design, reducing noise levels during operation—a thoughtful feature for establishments focused on customer experience.

Advanced technological aspects of the Grindmaster 6321L include its grind-on-demand system which ensures that coffee beans are only ground when needed. This feature preserves the freshness of the coffee, delivering an aromatic and flavorful brew every time. The grinder is also equipped with an automatic shut-off feature, enhancing energy efficiency and safety.

Durability is another key characteristic of the Grindmaster 6321L. Constructed with high-quality materials, it is designed to withstand the rigors of daily commercial use. With its solid construction and reliable performance, the 6321L is a perfect investment for any coffee business looking to elevate its coffee service.

In summary, the Grindmaster 6321L offers a blend of precision, customization, and durability. Its state-of-the-art features make it an indispensable tool for professionals in the coffee industry, ensuring that every cup served meets the highest standards of quality.