8
Grindmaster
®
250 Series Coffee Grinders
Troubleshooting Guide
Before you call for help, please read the following:
WARNING
Unplug power cord from outlet before cleaning or servicing your grinder.
Problem
Possible Cause
Solution
Grinder will not start when
START button is pushed
Plug not in outlet properly.
Install plug in outlet.
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
coffee is dispensed
Shear disc is broken.
Replace shear disc. See
Shear Disc
Replacement
or instructions on inside of
upper front plate.
Obstruction in opening to grinding
chamber.
Unplug unit. Empty beans out of hopper
and clear obstructions. See
Shear Disc
Replacement
for disassembly and
assembly instructions.
Auger has stalled.
Clean auger.
250RH Models: Hoppers not properly in
place.
Make sure hoppers are seated in their
allocated area.
Excessive amount of coffee
chaff flying about
Defective chaff mixer spring.
If bent, broken, or missing, replace
spring.
If stuck open with coffee, clean out
coffee to free spring.
Static electricity.
Tighten all nuts, bolts, and screws and
verify outlet is grounded.
Quantity of coffee dispensed
each throw is not the same
Auger stalls.
Refer to problem as listed below in this
Troubleshooting Guide.
Timer delay is not working or running
long enough.
See “Timer Adjustment” section.
Defective timer.
Check the length of time the grinder runs
with watch. If time varies more than plus
or minus 1%, replace timer.
Knobs do not operate smoothly
Coffee beans or bean dust may have
clogged carrier.
With machine unplugged, clean carrier.
Auger does not turn
Coffee beans or bean dust may have
jammed auger.
With machine unplugged, clean auger
opening.
250RH Models: Hopper not properly
seated.
Make sure hopper is seated in its
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
seated.
Make sure hopper is seated in its
designated area.
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Страница 17: ...250 Series Coffee Grinders Grindmaster 17 Wiring Diagram Model 250 120V 60Hz Wiring Diagram ...
Страница 18: ...18 Grindmaster 250 Series Coffee Grinders Wiring Diagram continued Models 250 250 3A 120V 60Hz Wiring Diagram ...
Страница 19: ...250 Series Coffee Grinders Grindmaster 19 Wiring Diagram continued Models 250RH 2 250RH 3 Wiring ...
