Bunn H10X service manual Service Overflow Protection Switch

SERVICE (cont.)

Overflow Protection Switch

P1993

FIG. 7 OVERFLOW PROTECTION SWITCH

Location:

The overflow protection switch is located within the side of the dispenser inside the copper overflow cup. For testing or removal of the overflow protection switch, access may also be needed by removing the two screws attaching the electronic control assembly to its mount- ing bracket.

Test Procedure:

1.Once voltage is verified at the power source, check for continuity across the overflow protection 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 each of the red wires to the black wires, the overflow pro- tection switch is operating properly.

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

Removal and Replacement:

1.Disconnect the black wires from the overflow pro- tection switch.

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 the float and there must be NO stainless steel 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.Reconnect the wires, FIG. 8.

RED to BLK Wire from

Terminal Block

RED to BLK Wire from

Electronic Control #3

P1777

FIG. 8 OVERFLOW PROTECTION WIRING

16 10889 091599