Bunn AFPO-3, AFPO-2 SL service manual Service, Main ON/OFF Switch

SERVICE (cont.)

MAIN ON/OFF SWITCH

									1
							REFI	LL	2
						3			IN
									MA ER
									POW
						TER
						WA	UT
						INP
				1		1
				R	AVO	R
				AVO T	FL PUT
				FLUTPU	IN	2
				O
			2	TER
				WATPUT	3
				OU
			R
		AVO T
	FL TPU
	OU
3		R
	W	TPU
	OU
R
AVO T
FL TPU
OU
R
ATE T
W TPU
OU
FIG. 6 MAIN ON/OFF SWITCH									P1516

Location:

The main ON/OFF switch is located on the lower right front of the autofill box just above the power cord.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the black wire from the fuse holder and the white wire from pump #1.

3.Connect the dispenser to the power source. Check for voltage across the black wire removed from the switch and the white wire removed from pump #1. The indication must be:

a)120 volts ac for 2 wire 120 volt models.

b)200 to 240 volts ac for two wire 200 or 240 volt models.

c)230 volts ac for two wire 230 volt models.

4.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #5.

If voltage is not present as described, refer to the Wiring Diagrams and check the dispenser wiring har- ness.

5.Check for continuity across the switch terminals with the switch in the “ON” position. Continuity must not be present when the switch is in the “OFF” position.

If continuity is present as described, reconnect the wires to the switch terminals.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Remove the wires from the switch terminals.

2.Compress the clips inside the autofill box and gently push the switch through the opening

3.Push the new switch into the opening and spread the clips to hold switch in the autofill box.

4.Refer to Fig. 7 when reconnecting the wires.

BLK from Fuse Holder

BLK to Solenoid (Water)

Switch #2 AFPO-2 & 3

FIG. 7 MAIN ON/OFF SWITCH TERMINALS P1522

12 28791 040501