Circuit Breaker - Bunn Fast Cup Series Service & Repair Manual

REAR PANEL
Circuit Breaker 3 Amp
Purpose: A breaker in series with all three grinder
motors. The breaker will break the electrical circuit
in the event of a foreign object getting in a motor
grind chamber and causing a jam between the coffee
burrs.
TEST INSTRUCTION
Volt/Ohm Meter - Continuity Check
Step 1: Disconnect or unplug machine from power.
Step 2: Remove rear panel to access circuit
breaker.
Step 3: Isolate the circuit breaker in preparation
of checking continuity by disconnecting the
wires from the breaker.
Step 4: Open upper door and locate breaker on
the rear wall behind brew module, ensure
breaker button is pushed inward or reset.
Step 5: Select the lowest resistance (OHMS) range
on the voltmeter. Install black meter lead in
the meter COM terminal and red meter
lead in the terminal labeled with the OHM
symbol.
Note: Various voltmeters may have a sym-
bol to indicate audible tone or sound. The
meter will alert with a loud tone or sound to
indicate continuity.
Step 6: Install red meter lead on the left breaker
terminal and the black meter lead on the
right breaker terminal.
Step 7: The voltmeter should display 0.00 or
audible tone will sound to indicate
continuity.
Step 8: Continuity present - Inspect all motor grind
chambers for foreign object jamming coffee
burrs unless the particular grind motor is
already identified by an error code (Left,
Center or Right).
Continuity not present - Replace breaker.
PART RELATES TO THE FOLLOWING SYMPTOMS
• Brew starts and then aborts/cancels
• Active Notice - E-030, 032, 034 - Left, Right or
Center Grinder No Current
SERVICE
Reset Button
4
90
3