Bunn AF PR-3 - Manual (Page 6)

6
PROBLEM
1. Empty product container
2. No power or incorrect voltage to
the dispenser
3. Signal cable unplugged
4. Hopper is full
5. Fuse and fuse holder
6. Main ON/OFF switch
7. Probe box LOW/OFF/HIGH
switches
8. Circuit board
9. Vacuum switches
10. Vacuum/Supply pump
1. Motor over heats
Replace or refill
(A1) Check the outlet for 120 volts
on two wire 120 volt dispenser.
(A2) Check the outlet for 200 volts or
240 volts ac for two wire 200 volt or
240 volt dispensers.
(B) Check circuit breakers or fuses.
Signal cable must be plugged in.
Product must not be touching probes
to fill.
Refer to Service - Fuse and Fuse
Holder for test procedures. See page
8
Refer to Service - Main ON/OFF
Switch for testing procedure. See
page 9
Refer to Service - Probe System. See
page 10
Refer to Service - Circuit Board for
testing procedures. See page 7
Refer to Service - Vacuum Switches
for testing procedures. See page 14
Refer to Service - Vacuum/ Supply
Pump for testing procedures. See
page 12
The thermal switch will reset, but
requires up to 30 minutes of cooling
time. See NOTE below.
TROUBLESHOOTING (cont.)
28791.1 011500
Product will not dispense
PROBABLE CAUSE REMEDY
Motor thermal cutout (motor stops
running)
NOTE: This refill unit should not be used to initially fill the hopper. Running the motor for extended periods will
trip the thermal switch. The thermal switch will reset, but requires up to 30 minutes of cooling time.