Troubleshooting Guide for Grind Selector™ Mechanism (Models 115AB and 250AB)

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

Problem

Possible Cause

Solution

 

 

 

Loud grating noise

• Burrs are touching each other on fine

• Readjust fine grind setting, see “To

 

grind setting

Adjust Fine Grind” section

 

 

 

Rumbling noise

• Thrust bearing rotating inside flange

• Replace thrust bearing and shear cap

 

bearing

 

 

 

 

Chattering or buzzing noise

• Solenoid may have failed to seat or

• Check alignment of solenoid and

 

close fully (Models 115AB &

shift arm

 

250AB only)

• Also check the tightness of the solenoid

 

 

mounting screws

 

 

 

Loud vibration noise during grinding

• Cotter pin in the thumb screw linkage

• Attempt to spread flanges of cotter pin

when Grind Selector™ is not activated

may be vibrating

or replace cotter pin

 

 

 

Grind Selector™ fails to activate

• Wiring harness loose

• WITH MACHINE UNPLUGGED, check

 

 

wiring harness connections to see if

 

 

they are secure on the timer terminals

 

• Solenoid has burned out (Models 115AB

• Replace solenoid

 

& 250AB only)

 

 

 

 

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

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

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115 & 250 Series Coffee Grinders

 

 

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Grindmaster 115A Loud grating noise, Rumbling noise, Chattering or buzzing noise, Loud vibration noise during grinding

115A specifications

The Grindmaster 115A is a state-of-the-art commercial coffee grinder designed for coffee shops, restaurants, and other establishments that prioritize high-quality coffee brewing. Renowned for its precision and durability, the Grindmaster 115A is engineered to meet the demands of busy environments while ensuring exceptional taste in every cup.

One of the standout features of the Grindmaster 115A is its heavy-duty construction. Built with high-quality materials, this grinder is designed to withstand the rigors of daily use. The robust housing and components contribute to its longevity, making it a solid investment for any business looking to enhance its coffee offerings.

The Grindmaster 115A utilizes commercial-grade burrs that guarantee a consistent grind size. This is essential for achieving optimal extraction and a balanced flavor profile in coffee brewing. The grinder's adjustable grind settings allow baristas to easily customize the grind size according to the specific needs of various brewing methods, whether it be espresso, drip coffee, or French press.

Another notable characteristic of the Grindmaster 115A is its user-friendly interface. The grinder features intuitive controls that enable quick and straightforward operation. Baristas can make adjustments on the fly without interrupting the flow of service, which is crucial in fast-paced coffee shop environments.

The Grindmaster 115A also boasts a high-capacity hopper that can hold a significant amount of coffee beans, reducing the frequency of refills and allowing for uninterrupted grinding during peak hours. This makes it an ideal choice for establishments with high coffee demand.

In terms of technology, the Grindmaster 115A incorporates a powerful motor that ensures efficient grinding while maintaining a low heat build-up. This technology protects the integrity of the coffee beans, preserving their natural oils and flavors for the best possible brew. Additionally, the grinder is equipped with a safety switch that prevents operation when the hopper is not securely in place, ensuring operator safety.

Overall, the Grindmaster 115A is a feature-rich coffee grinder that excels in performance, durability, and versatility. Its combination of high-quality construction, precise grind settings, and user-friendly design make it a premier choice for any establishment dedicated to serving exceptional coffee. Businesses investing in the Grindmaster 115A can expect to deliver an enhanced coffee experience that keeps customers coming back.