Bunn AFPO-3, AFPO-2 SL service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy

Models: AFPO-2 AFPO-2 SL AFPO-3

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TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Product will not dispense (cont.)

6. Main ON/OFF switch

Refer to Service - Main ON/OFF

 

 

Switch for testing procedure. See

 

 

page 12

 

7. Probe box LOW/OFF/HIGH

Refer to Service - Probe system. See

 

switches

page 13

 

8. Circuit board

Refer to Service - Circuit Board for

 

 

testing procedures. See page 10

 

9. Vacuum switch

Refer to Service - Vacuum switch for

 

 

testing procedures. See page 21

 

10. Vacuum/Supply pump

Refer to Service - Vacuum/Supply

 

 

pump for testing procedures. See

 

 

page 19

 

11. Pump (flavor) start switches

Refer to Service - Pump (flavor) start

 

 

switches for test procedures. See

 

 

page 14

Incorrect mix ratio

1. No water

Water lines and valves to the dis-

 

 

penser must be open.

 

2. Needle valve

Refer to Setup - Mix Ratio Adjust-

 

 

ments for adjustment. See page 4

 

3. Solenoids

Refer to Service - Solenoids for test

 

 

procedures. See page 16

Motor thermal cutout (motor stops

1. Motor overheat

The thermal switch will reset, but

running)

 

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.

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Bunn AFPO-3, AFPO-2 SL TROUBLESHOOTING cont, Problem, Probable Cause, Remedy, Refer to Service - Circuit Board for