Bunn AFPO-3 SL - Manual (Page 8)

8
TROUBLESHOOTING (cont.)
PROBLEM PROBABLE CAUSE
6. Main ON/OFF switch
7. Probe box LOW/OFF/HIGH switch-
es
8. Circuit board
9. Vacuum switch
10. Vacuum/Supply pump
11. Pump (flavor) start switches
1. No water
2. Needle valve
3. Solenoids
1. Motor overheat
REMEDY
Refer to Service - Main ON/OFF
Switch for testing procedure. See
page 13
Refer to Service - Probe system.
See page 14
Refer to Service - Circuit Board for
testing procedures. See page 11
Refer to Service - Vacuum switch for
testing procedures. See page 22
Refer to Service - Vacuum/Supply
pump for testing procedures. See
page 20
Refer to Service - Pump (flavor)
start switches for test procedures.
See page 15
Water lines and valves to the dis-
penser must be open.
Refer to Setup - Mix Ratio Adjust-
ments for adjustment. See page 5
Refer to Service - Solenoids for test
procedures. See page 17
The thermal switch will reset, but
requires up to 30 minutes of cooling
time. See NOTE below
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.
Product will not dispense (cont.)
Incorrect mix ratio
Motor thermal cutout (motor stops
running)
41093 040408