Bunn MHG Service & Repair Manual page 12

Problem
Grinder starts, but will not dispense
from hopper.
Incorrect amount of coffee.
Probable Cause
1. Hopper(s)
2. Blockage of hopper(s)
3. Slide Gate Solenoids (Model LPG-
2E only)
4. Timer
5. Off/On/Start switch
6. Slide plates
7. Solenoids
8. Solenoid Limit Thermostat
9. Shear Plate
1. Timer adjustment
2. Snubber
12
Remedy
Begin each grind cycle by visually
inspecting the hopper(s) for ample
supplies of whole bean coffee.
Foreign materials must not block
the openings at the bottom of the
hopper(s).
Refer to Service - Solenoids for test-
ing procedures.
Refer to Service - Timer for testing
procedures.
Refer to Service - Off/On/Start
switch for testing procedures.
(A) Check to see that the slide plates
move freely to allow beans to travel
into the grind chamber.
(B) Refer to Service -Slide Plates for
testing procedures.
Refer to Service - Solenoids for test-
ing procedures.
Refer to Service - Solenoids for test-
ing procedures.
Remove both black fillister head
screws holding the grinder selector
dial plate to the grinder. Carefully
remove the dial plate and rotor cup.
Inspect the shear plate for wear.
Replace if excessively worn or dam-
aged.
Refer to the Adjustment section
in the Installation and Operation
Manual.
Refer to Service - Snubber for re-
placement procedures.
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