Bunn AFPO-2 User Manual download pdf (Page 7)

TROUBLESHOOTING

A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems

encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic

Technical Service Department.

• Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.

• All electronic components have 120 volt ac and low voltage dc potential on their terminals. Shorting of

terminals or the application of external voltages may result in board failure.

• Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If an

intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a

terminal or crimp.

• Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are

energized for more than ten minutes without a supply of water.

• The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help

to avoid twists and kinks in the tubing.

• Make certain that all plumbing connections are sealed and electrical connections tight and isolated.

• Keep away from combustibles.

WARNING – • Exercise extreme caution when servicing electrical equipment.

• Unplug the dispenser when servicing, except when electrical tests are specified.

• Follow recommended service procedures

• Replace all protective shields or safety notices

PROBLEM

Product will not dispense

PROBABLE CAUSE

1. No water

2. No power or incorrect voltage to

the dispenser

3. Signal cable unplugged

4. Hopper is full

5. Fuse and fuse holder

REMEDY

Water lines and valves to the dis-

penser must be open.

(A1) Check the outlet for 120 volts

on two wire 120 volt dispensers.

(A2) Check the outlet for 200 volts

or 240 volts ac for two wire 200

volt or 240 volt dispensers.

(A3) Check the outlet for 230 volts

on two wire 230 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 11

28791 040501

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Bunn AFPO-2 User Manual Page 7

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