Bunn Single SH DBC* (with Smart Funnel) Owner's Manual

Page 36

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 - 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 fittings 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. 

  

• 

Exercise extreme caution when servicing electrical equipment.

  

• 

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

  

 

specified.

  

• 

Follow recommended service procedures.

  

• 

Replace all protective shields or safety notices.

1. Overflow cup is full of water.

1. Soft Heat Server not correctly 

positioned on base.

2. Not using a Soft Heat Server, and 

the  SERVER DETECT function is 

activated (on).

Empty cup

Position the server so that the con-

nector pins on the server make con-

tact with connector on the brewer.

Disable the SERVER DETECT func-

tion. See page 32 for procedure.

34025  022509

OVERFLOW CUP

FULL. EMPTY CUP

SERVER NOT

IN PLACE