Bunn Dual TF DBC User Manual download pdf (Page 41)

Page 41

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 qualiﬁ ed

service personnel.

• All electronic components have 120 - 240 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 per-

manent. 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 sole-

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

• The use of two wrenches is recommended whenever plumbing ﬁ ttings are tightened or loosened.

This will help avoid twists and kinks in the tubing.

• Make certain that all plumbing connections are sealed and electrical connections tight and iso-

lated.

• This brewer is heated at all times. Keep away from combustibles.

WARNING

• Exercise extreme caution when servicing electrical equipment.

• Disconnect the brewer from the power source when servicing, except when electrical tests are

speciﬁ ed.

• Follow recommended service procedures.

• Replace all protective shields or safety notices.

Screen Displayed

Possible Cause

Troubleshooting Procedures

1. Overﬂ ow cup is full of water. This

could be caused by boiling; see chart

on page 33. Also could be Reﬁ ll Sen-

sitivity adjustment; see page 34.

Empty cup. Correct cause and

retry.

1. SMART FUNNEL

not fully inserted

into the funnel rails.

2. Not using a SMART FUNNEL,

and the FUNNEL DETECT function

is activated (on).

Position the funnel so that the sensor

is directly beneath the sensor coil on

the brewer.

Disable the FUNNEL DETECT func-

tion.

OVERFLOW CUP

FULL. EMPTY CUP

NO FUNNEL

PRESENT

35058.1 071205

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Bunn Dual TF DBC User Manual Page 41

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