Bunn FMD-4 User Manual

39

FIG. 33 LAMP HOLDERS

P1454.70

Location:
The lamp holders are located on the front of the upper 

panel behind the display panel.

Test Procedure:

1.  Disconnect the dispenser from the power source.

2.  Remove upper door panel (4) and disconnect the 

door wiring harness from the leads on the lamp 

holders.

3.  Remove lamp from lamp holders.

4.  Check for continuity on each lead of the lamp hold-

ers.

If continuity is present as described, lamp holders are 

operating properly.

If continuity is not present as described replace the 

lamp holder.

1

3

4

6

1.  Door Assy

2.  Lamp Holders

3. Lamp

4.  Upper Panel

5.   Lower Panel

6.  Starter W/Socket

5

2

Removal and Replacement: (Refer to Fig. 33)

1.  Open dispenser door (1).

2.  Remove the five #6-32 screws securing lower door 

panel (5) to the door (1) and remove cover.

3.  Disconnect the door wiring harness from the door 

interconnect wiring harness.

4.  Remove five #6-32 screws securing the upper door 

panel (4) to the door (1).

5.  Remove the upper door cover (4), lamp (3), lamp 

holders (2) and door wiring harness as an assem-

bly.

6.  Disconnect the wires from the lamp holder to be 

replaced from the door wiring harness.

7.  Rotate lamp (3) 90° and remove from lamp holders 

(2).

8.  Remove the #6-32 screw securing the lamp holder 

(2) to be removed, remove lamp holder (2) and 

discard.

9.  Install new lamp holder (2) and secure with a #6-32 

screw.

10. Connect the wires on the new lamp holder to the 

door wiring harness, black wire to red wire, and 

white wire to blue wire.

11. Install lamp (3) into lamp holders (2) and turn 90° 

until the pins snap in place.

12. Install upper door panel (4), lamp (3), lamp holders 

(2) and door wiring harness as an assembly using 

five #6-32 screws.

13. Reconnect the plug on the door wiring harness 

to the connector on the door interconnect wiring 

harness.

14. Install the door lower panel (5) using five

 

#6-32 screws.

LAMP REPLACEMENT (Refer to Fig. 33)

1.  Remove the outside window and display graphic.

2.  Remove the two #4-40 screws securing the inside 

window to the door and remove window.

3.  Rotate lamp (3) 90° and remove from the lamp 

holders (2).

4.  Insert new lamp (3) into lamp holders (2) and turn 

90° until the pins snap in place.

5.  Using two #4-40 screws secure the inside window 

to the door.

6.  Install outside window and slide display graphic 

down between the inside window and the outside 

window.

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