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.