Safety Overflow Switch - Bunn H5X Service & Repair Manual

SERVICE (cont.)

Safety Overflow Switch

FIG. 13a SAFETY OVERFLOW SWITCH
T h
c o
is
m p e q
u ip
ly
w it m e
A d th e
h th n t
m in B u
a n e B is
is tr il d to
o f d th in g a s
a to ic b e
th e e F in s
rs O ff P lu
F o o o In te ic ia ta ll
m b
o d d S rn a ls e d
a n in g
e rv ti o a n to
d D ic e d C C o
n a
ru g l, In o d d e
S a o f
A d n it c . e
m in a ti (B
o n O C
is tr
M a A )
a ti
o n n u
a l
(F
D A
).
FIG. 13b OVERFLOW PROTECTION SWITCH
Location:
The safety overflow switch is located inside the rear of
the dispenser inside the copper overflow cup.
For testing or removal of the safety overflow 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 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 each
of the red wires to the black wires, the safety overflow
switch is operating properly.
If continuity is not present as described, replace the
safety overflow switch.
Removal and Replacement:
1. Disconnect the black wires from the safety overflow
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
NOTE - The magnets must be at the top of the float and
H 5
there must be NO stainless steel washers installed for
P4093
the safety overflow switch to operate properly.
5. Install the nut beneath the copper overflow cup.
6. Reconnect the wires, FIG. 6.
RED to BLK Wire from
H 10
Terminal Block
P1993
RED to BLK Wire from
Electronic Control #3
13
switch.
first. Make sure that a gasket is in place around the
threaded switch stem.
Be sure not to overtighten.
FIG. 13c SAFETY OVERFLOW WIRING
P1777