Bunn TU5Q Manual De Propietario

Page 8

 

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 person-

nel.

•  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.

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

•  Exercise extreme caution when servicing electrical equipment.

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

•  Follow recommended service procedures

•  Replace all protective shields or safety notices

Brew cycle will not start 

1. No water  

2. No power or incorrect voltage to 

the brewer

3. External Strainer/Flow Control 

(.750 GPM)

4. ON/OFF Switch

5. Start Switch

Water lines and valves to the brewer 

must be open.

Check circuit breakers or fuses.

(A) Direction of flow arrow must be 

pointing towards the brewer.

(B) Remove the strainer/flow con-

trol and check for obstructions. 

Clear or replace.

Refer to Service - ON/OFF Switch 

for testing. See page 20 

Refer to Service - Start Switch for 

testing procedures. See page 21

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