Grindmaster 115A instruction manual Troubleshooting Guide

Problem

Possible Cause

Solution

Grinder will not start when START

• Plug not in outlet properly

• Install plug in outlet

button is pushed

• No power to outlet

• Check outlet with lamp or radio to verify

outlet has power.

• Circuit breaker has tripped

• Reset circuit breaker by pushing in reset

button until you hear a click

Grinder runs or hums but no

• Shear disc is broken

• Replace shear disc. See “Shear Disc

coffee is dispensed

Replacement” section or instructions on

inside of upper front plate.

• Obstruction in opening to grinding

• Remove hopper and clear obstructions.

chamber

• Auger has stalled (Models 250, 250A

• Clean auger

250RH-2 & 250RH-3 only).

• 250RH Models: Hoppers not properly in

• Make sure hoppers are seated in their

place

allocated area

Excessive amount of chaff flying

• Defective chaff mixer spring

• If bent, broken, or missing,

about

replace spring.

• If stuck open with coffee, clean coffee to

free spring

• Static electricity

• Tighten all nuts, bolts, and screws and

verify outlet is grounded.

Quantity of coffee dispensed each

• Auger stalls (Models 250, 250A,

• Refer to problem as listed below in this

throw is not the same

250RH-2, and 250RH-3 only)

Troubleshooting Guide.

• Timer delay is not working or running

• See “Timer Adjustment” section

long enough

• Check the length of time the grinder

runs

• Defective timer

• If time varies more than plus or minus

1%, replace timer.

Knobs do not operate smoothly

• Coffee beans or bean dust may have

• With machine unplugged, clean carrier

clogged carrier

Auger does not turn

• Coffee beans or bean dust may have

• With machine unplugged, clean auger

jammed auger

opening

• 250RH Models: Hopper not properly

• Make sure hopper is seated in its

seated

designated area (see Figure A)

Auger will not operate

• Motor or link is binding

• Check all alignment of link and motor.

Check tightness of motor mounting

screws.

• Auger motor has burned out

• Replace motor

• Wiring harness to motor is loose

• With machine unplugged, check to see

if wires are connected to motor

• 250RH Models: Hopper not properly

• Make sure hopper is seated in its

seated

designated area (see Figure A)

Circuit breaker continuously trips

• Insufficient current due to use of

• Plug unit directly into outlet. Do not use

extension cord

extension cord.

• Insufficient current due to overloaded

• Designate single line for grinder. Do not

line

use multi-outlet box.

• Grind setting needs adjustment

• Adjust grind to coarser setting (see

“Grind Adjustment” section)

continued on next page

115 & 250 Series Coffee Grinders

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