SERVICE (cont.)

BALLAST

 

FIG. 4 BALLAST

P1199.40

 

Location

 

The front door lamp ballast is located on the front center of the base behind the front panel.

Test Procedure

1.Disconnect the dispenser from the power source.

2.Disconnect the two terminal plug of the door in- terconnect harness from the connector of the ballast.

3.Check the voltage across the white wire and the blue wire terminal of the ballast with a voltmeter. Connect the dispenser to power source. The in- dication must be:

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

b)120 volts ac for three wire 120/208 volt models or 120/240 volts models.

c)240 volts ac for two wire 240 volt models.

If voltage is present as described the ballast is oper- ating properly.

If voltage is not present as described, replace the ballast.

Removal and Replacement

1.Disconnect the wires from the ballast.

2.Remove the two #8-32 keps nuts securing the ballast to the dispenser base.

3.Remove and discard ballast.

4.Install new ballast over the two weld studs on the dispenser base and secure with two #8-32 keps nuts.

5.Refer to the illustration below when reconnect- ing the wires.

WHI to Main

BLK to Terminal Block

 

Wiring Harness

 

WHI & BLU to

 

Door

 

Interconnect

 

Harness

 

120V, 120/208V, & 120/240V Models

 

WHI to Main

 

Wiring Harness

RED & BLU to

 

Door

 

Interconnect

 

Harness

 

 

BLK to Terminal Block

 

240V Models

 

P1202.45

FIG. 5 BALLAST TERMINALS

15

27591 031597

 

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Bunn HC-2 HC-3 service manual Ballast, Location, Test Procedure

HC-2 HC-3 specifications

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