Left And Right Auger Motor Capacitor - Bunn Ultra NX Service & Repair Manual

Left and Right Auger Motor Capacitor

FIG. 11 AUGER MOTOR CAPACITORS
Location:
The auger motor capacitors are located at the
upper rear of the dispenser chassis, above each
auger motor.
WARNING: All new, old or defective capacitors
need to be treated as they hold a "charge" and
can be harmful. Before testing a capacitor, safely
discharge the capacitor. Once the capacitor is fully
discharged you can now begin testing of the
capacitor.
Rear Cover Removal:
1. Remove 4 screws securing rear cover.
2. Grab cover and pull away from machine.
Test Procedures:
Option 1:
1. Remove the hopper from the same side as the
motor to be tested.
2. Turn "ON" the appropriate auger switch.
3. Nudge the auger to start it turning.
If the auger doesn't turn, replace the motor.
If auger starts to turn, replace the start capacitor.
Option 2:
Examine the capacitor for bulging or fluid leakage.
If seen, replace capacitor.
No bulging or leakage - Use a capacitance meter
to measure the capacitance. The capacitance value
should be the rated value or within the allowable
tolerance range.
SERVICE - REAR COVER COMPONENTS
Auger Motor Capacitor Ratings:
120V Models:
Capacitance - 4.0μF-5%/+10%, VOLTAGE - 250
VAC 50/60 Hz.
240V Models:
Capacitance - 1.25μF±5%, VOLTAGE - 500 VAC
50/60 Hz
If it is outside the allowable capacitance range, then
the capacitor needs to be replaced.
Part Removal and Replacement:
1. Disconnect the wires from the auger motor
capacitor.
2. Remove 1 screw securing the capacitor to the
machine frame.
3. Install replacement capacitor with screw
removed in step 2.
4. Reconnect the wires to the capacitor terminals.
FIG. 12 AUGER MOTOR CAPACITOR
35