Bunn S/N DUAL068000 TROUBLESHOOTING cont, Problem, Troubleshooting Procedure, Possible Cause

TROUBLESHOOTING (cont.)

Problem	Possible Cause	Troubleshooting Procedure
Equipment will not operate.	1. No power or incorrect voltage.	Measure the voltage at the terminal
		block and confirm that it matches
		the voltage specified on the brewer
		data plate within +/- 10%.

Brew cycle will not start.	1.	No water
	2.	ON/OFF switch

3. Brew switch

Check plumbing and shut-off valves

Test the ON/OFF switch. Refer to the switch test procedures on pages 36-38.

Test the BREW switch. Refer to the switch test procedures on pages 36-38.

Automatic refill will not operate or display shows FILL TIME TOO LONG

4.Brew Valve

5.Electronic Control Board

1.No water

2.Water strainer/flow control (.750 GPM)

Test the Brew valve. Refer to Testing Individual Components.

Substitute a control board known to be in good working order.

Check plumbing and shut-off valves.

(A)Direction of flow arrow must be pointing towards direction of water flow.

(B)Remove the strainer/flow control and check for obstructions. Clear or replace.

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