Bunn FMD-1 FMD-2 SERVICE cont, CONTROL BOARD - FMD-2 ONLY CONT, Dispense Switch, Location

SERVICE (cont.)

CONTROL BOARD - FMD-2 ONLY (CONT.)

7.Check the voltage across the red (+) terminal and the black (-) terminal of the auger motor with a voltmeter. Connect the dispenser to the power source. Press and hold the appropriate dispense switch. After a delay of about .6 seconds, the indication must be between +4.0 and +24.5 volts dc.

If the voltage is present as described, the hopper motor control circuitry is operating properly.

If the voltage is not present as described, replace the control circuit board.

Removal and Replacement:

1.Disconnect the three plugs on the main wiring harness from the connectors on the control board.

2.Remove the four #6-32 keps nuts securing the control board to the component bracket.

3.Remove control board and discard.

4.Install new control board on the component bracket using four #6-32 keps nuts.

5.Reconnect the three plugs on the main harness to the connectors on the control board.

J2	J3
	J2
		J3
		J4
J1
J1		J4
		P1640
FIG. 13 CONTROL BOARD CONNECTORS

DISPENSE SWITCH(S) - FMD-1 & FMD-2
			CUP
		N U	NTIL
		BUTTORELEASE
		HOLD THEN
		and FULL,
	PUSHIS	2/3
	FULL
	IS 2/3
	CUP
	WHEN
ASE	PLACE
RELE
	HERE
	CUP
			FMD-1
			CUP
		UNTIL
		BUTTONRELEASE
		and FULL,
	PUSHIS	2/3
	FULL
	IS 2/3
	CUP
	WHEN
RELEASE	PLACE
	HERE
	CUP
PLACE
HERE
CUP
			FMD-2
FIG.14 DISPENSE SWITCH				P1614
Location:

The dispense switch(es) is (are) located on the lower outside of the dispenser door.

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