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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 mounting 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 protection
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