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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.
RED to BLK Wire from
Terminal Block
RED to BLK Wire from
Electronic Control #3
P1777
FIG. 8 OVERFLOW PROTECTION WIRING
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.
P1993
FIG. 7 OVERFLOW PROTECTION SWITCH
SERVICE (cont.)
Overflow Protection Switch
10889 091599