Bunn T3A, T6A manual Troubleshooting, Problem, Probable Cause, Brew cycle will not start, Remedy

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 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.

WARNING –

•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

Problem	Probable Cause
Brew cycle will not start	1. No water
	2. No power or incorrect voltage to
	the brewer
	3.External Strainer/ Flow Control
	(.750 GPM)

Remedy

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.

4. (A) ON/OFF Switch (T3)	Refer to Service - ON/OFF Switch
	for testing. See page 24
(B) Selector Switch (T6)	Refer to Service - Selector Switch
	for testing. See page 24

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