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SERVICE
Electronic Controls
T h
co
is
m p
e q
u ip
ly
A d
th e
w ith
m e
n t
m in
B u
th e
is
a n
is tr
ild
B a
to
o f
d th
a to
in g
si c
b e
th e
e F
FIG. 8a ELECTRONIC CONTROL
rs
O ff
P lu
in st
F o
o o
In te
ic ia
m b
a lle
o d
d S
rn a
ls
a n
e rv
a n
in g
d to
d D
tio
C o
ic e
n a
d C
d e
ru g
S a
l, In
o d
A d
n ita
e
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c.
m in
tio
(B
is tr
n M
O C
a tio
A )
a n
n (F
u a
l
D A
).
Triac Assy
Electronic
Control Board
FIG. 8b ELECTRONIC CONTROL
BOARD AND TRIAC
Location:
The electronic control board is located inside the
rear of the dispenser. Access will also be needed to the
temperature sensor, overflow tube temperature sensor,
and liquid level probe located on the tank lid.
General:
This system controls the liquid level and water
temperature of the dispenser. These two functions
act independently of each other and should be tested
separately.
Liquid Level Control Flow Charts
H 5
P4093.35
H5E, H5X LIQUID LEVEL CONTROL
PROBLEM: Overflows
H 10
P1991-1.30
8
H5E, H5X LIQUID LEVEL CONTROL
PROBLEM: Does Not Refill
Yes
Overflow Cup Full
Remove Power
?
Drain cup
No
Retry
Disconnect Level Probe
Yes
Voltage present at
Does Water Flow
Solenoid Valve
?
No
Unplug Ready Lamp
Replace Solenoid Valve
Voltage present at
Yes
Replace Ready Lamp
Solenoid Valve
?
No
Replace Control Board
Drain cup
Unplug Ready Lamp
Retry
No
Overflow
Replace Ready Lamp
?
Yes
Drain cup
Disconnect Probe
Wire From Probe
Short Probe Wire
To Chassis
Retry
No
Overflow
Replace Probe
?
Yes
Drain cup
Disconnect Wire From
Solenoid Valve
Retry
Yes
Overflow
Replace Solenoid Valve
?
No
Replace Control Board
Yes
Replace Probe
?
No
42311 071310
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