Bunn dispenser service manual Lamp Holder/Socket Assembly, SERVICE cont

SERVICE (cont.)

LAMP HOLDER/SOCKET ASSEMBLY

P1927

FIG. 21 LAMP HOLDER/SOCKET ASSEMBLY

Location:

The lamp holder/socket assembly is located inside the dispenser door.

Test Procedures:

1.Disconnect the lamp cord from the lamp cord connector.

2.Remove the lamp from the lamp holder/socket assembly.

3.Check the voltage across the two pin holes on the lamp holder/socket assembly with a voltmeter and Day/Night switch in the "DAY" position and the ON/ OFF switch in the "ON" position. Verify that the dispenser hopper is full and in place, the dispenser probe contact is making contact with the ULTRA liquid level probe, and the dispenser door is closed. Reconnect the lamp cord to the lamp cord connec- tor. The indication must be approximately 12.6 volts ac.

4.Disconnect the lamp cord from the lamp cord connector.

If voltage is present as described, the lamp holder/ socket assembly is operating properly.

If voltage is not present as described, replace the lamp holder/socket assembly

5.Check for continuity across the terminals on the lamps.

If continuity is present as described, the lamp is oper- ating properly.

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

Removal and Replacement:

1.Disconnect the lamp cord assembly from the lamp cord connector assembly in the top of the dis- penser.

2.Remove the display graphic from the dispenser door.

3.Open the dispenser door.

4.Remove the five #6-32 screws securing the rear door cover to the door.

5.Carefully lower the rear door cover and disconnect the lamp holder/socket assembly from the lamp cord terminals.

6.Remove the lamp.

7.Remove #2-56 screw and elastic lock nut securing the lamp holder/socket assembly to the mounting bracket. Remove the lamp holder/socket assembly and discard.

8.Install new lamp holder/socket assembly on mount- ing bracket using the #2-56 screw and lock nut.

9.Reinstall lamp.

10.Connect the new lamp holder/socket assembly to the lamp cord terminals.

11.Reinstall the rear door cover to the dispenser door. Make sure wires are located in notch in door flange.

12.Close the dispenser door.

13.Plug-in the lamp cord assembly to the lamp cord connector assembly on top of the dispenser.

14.Refer to Fig. 22 when reconnecting the wires.

WHI to BLK

at Lamp Cord

BLK to BLK

at Lamp Cord

P1929

FIG. 22 LAMP HOLDER/SOCKET

ASSEMBLY WIRES

25 29793.1 021202