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10
SERVICE (cont.)
Electronic Controls
Location:
The electronic control assembly 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 and to the
triac assembly located beneath the tank.
General:
This system controls the liquid level and water tem-
perature of the dispenser. These two functions act in-
dependently of each other and should be tested sepa-
rately.
Liquid Level Control Flow Charts
O
N
CAUTION
!
F
a
il
u
r
e
T
o
C
o
m
p
ly
V
o
id
s
W
ar
r
a
n
t
y
!
Hot Water Systems
– Water Tank Will Fill
Automatically When Unit Is Connected To Power!
Coffee Brewers
– Fill The Water Tank I
n
Accordance With The Installation Instructions!
D
O NO
T
Tu
rn
O
n T
he Tank
H
eater S
w
itch
Un
til W
a
ter
Co
mes From
Open
ed Fa
uce
t!
H
A
Z
A
R
D
O
U
S
V
O
L
T
A
G
E
D
I
S
C
O
N
N
E
C
T
F
R
O
M
P
O
W
E
R
S
O
U
R
C
E
B
E
F
O
R
E
R
E
M
O
V
I
N
G
!
W
A
R
N
I
N
G
O
N
OFF
ON
S
T
O
P
R
E
A
D
N
O
T
I
C
E
Voltage present at
Solenoid Valve
?
Voltage present at
Solenoid Valve
?
Overflow Cup Full
?
Remove Power
Disconnect Level Probe
Retry
Drain cup
No
Ye s
Ye s
Ye s
Ye s
No
No
No
H5E, H5X LIQUID LEVEL CONTROL
PROBLEM: Does Not Refill
Does Water Flow
?
Replace Probe
Unplug Ready Lamp
Replace Ready Lamp
Replace Control Assembly
Replace Solenoid Valve
Overflow
?
Overflow
?
Retry
Drain cup
Ye s
Ye s
No
H5E, H5X LIQUID LEVEL CONTROL
PROBLEM: Overflows
Unplug Ready Lamp
Retry
Retry
Drain cup
Drain cup
Short Probe Wire
To Chassis
Disconnect Probe
Wire From Probe
Disconnect Wire From
Solenoid Valve
Replace Ready Lamp
No
Replace Probe
Overflow
?
Ye s
Replace Control Assembly
No
Replace Solenoid Valve
FIG. 1 ELECTRONIC CONTROL
FIG. 2 TRIAC
12565.0002
02328.0003
01520.0000
12561.0000
00971.0000
M2522.1000
.0000
P1772
P1773
10420 011599