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115 & 250 Series Coffee Grinders Page 8
Grinder will not start when
Start button is pushed.
Grinder runs or hums but no
coffee is dispensed.
Excessive amount of chaff
flying about.
Quantity of coffee dispensed
each throw is not the same.
Knobs do not operate
smoothly.
Auger does not turn.
Auger will not operate.
Circuit breaker continuously
trips.
• Plug not in outlet properly.
• No power to outlet.
• Circuit breaker has tripped
• Shear disc is broken.
• Obstruction in opening to grinding
chamber.
• Auger has stalled (models 250 &
250A only).
• Defective chaff mixer spring.
• Static electricity.
• Auger stalls (Models 250 & 250A
only).
• Timer delay is not working or
running long enough.
• Defective timer.
• Coffee beans or bean dust may
have clogged carrier.
• Coffee beans or bean dust may
have jammed auger.
• Motor or link is binding.
• Auger motor has burned out.
• Wiring harness to motor is loose.
• Insufficient current due to use of
extension cord.
• Insufficient current due to
overloaded line.
• Grind setting needs adjustment.
• Install plug in outlet.
• Check outlet with lamp or radio to
verify outlet has power.
• Reset circuit breaker by pushing in
reset button until you hear a click.
• Replace shear disc. See “Shear Disc
Replacement” section or instructions
on inside of upper front plate.
• Remove hopper and clear obstructions.
• Clean auger
.
• If bent, broken, or missing, replace
spring.
• If stuck open with coffee, clean
coffee to free spring.
• Tighten all nuts, bolts and screws and
verify outlet is grounded.
• Refer to problem as listed below in this
Troubleshooting Guide.
• See “Timer Adjustment” section.
•
Check the length of time the grinder runs.
• If time varies more than plus or minus
1%, replace timer.
• With machine unplugged, clean carrier.
• With machine unplugged, clean
auger
opening.
• Check all alignment of link and motor.
Check tightness of motor mounting
screws.
• Replace motor
• With machine unplugged, check to see
if wires are connected to motor.
• Plug unit directly into outlet. Do not
use extension cord.
• Designate single line for grinder. Do
not use multi-outlet box.
• Adjust grind to coarser setting
(see “Grind Adjustment” section)
Troubleshooting Guide
The following procedures must be performed by a qualified service technician.
CAUTION: Unplug the machine before cleaning or servicing the unit.
Problem Possible Cause Solution