Bunn Beverage Dispenser FMD-5 User Manual

44

FIG. 39 OVERFLOW PROTECTION

SWITCH LEADS

P1212

FIG. 38 OVERFLOW PROTECTION SWITCH

Location:
 

The overflow protection switch is located inside the 

copper overflow cup on the left side of the tank.

Test Procedures:

1.  Disconnect the dispenser from the power source.

2.  Remove the wire nuts connecting the red wires 

from the overflow protection switch to the black 

wire  and blue wire from the main harness.

3.  Check for continuity across the safety overflow 

switch red wires only until the plastic float is raised 

and check that continuity returns when the plastic 

float is again lowered.

If continuity is present as described, reconnect the 

red wires to the black wire  and the blue wire from the 

main harness.

If continuity is not present as described, replace the 

overflow protection switch.

Removal and Replacement:

1.  Disconnect the red leads from the overflow protec-

tion switch from the black wire and the blue wire 

from the main harness.

2.  Remove the nut beneath the copper overflow 

cup.

3.  Remove the entire switch assembly from the cup.

4.  Place the new switch assembly into the cup, wires 

first. Make sure that a gasket is in place around the 

threaded switch stem.

NOTE - The magnets must be at the top of float and 

there must be NO adjusting washers installed for the 

overflow protection switch to operate properly.

5.  Install the nut beneath the copper overflow cup. Be 

sure not to overtighten.

6.  Refer to schematic wiring diagrams when recon-

necting wires.

P4102.40

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