Filter
Top Products
SERVICE TECH INFORMATION
S
E
C
T
I
O
N
5
2
1
5A. TROUBLESHOOTING
AUTOMATIC ELECTRONIC DIAGNOSTICS
The face plate computer has a self-diagnostic
function for the electrical system (except input
power and water meter). The
computer monitors the elec-
tronic components and circuits
for correct operation. If a
malfunction occurs, an error
code appears in the face plate
display.
The chart below shows the error codes that could
appear, and the possible defects for each code.
While an error code appears in the display, all face
plate buttons are inoperable except the SELECT
button. SELECT remains operational so the service
person can make the MANUAL INITIATED
ELECTRONIC DIAGNOSTICS (below) to further
isolate the defect, and check the water meter.
CODE
POSSIBLE DEFECT
MOST LIKELY LESS LIKELY
Err1 motor inop. / wiring harness or connection to switch / position switch / face plate
Err2 face plate
Err3 motor / face plate See face plate replacement on
p
a
g
e
2
2
.
Err4 face plate / position switch
S
e
e
f
a
c
e
p
l
a
t
e
r
e
p
l
a
c
e
m
e
n
t
o
n
page 22.
Err5 face plate
PROCEDURE FOR REMOVING ERROR CODE FROM FACE PLATE: 1. Unplug transformer 2. Correct defect
3. Plug in transformer 4. Wait for 6 minutes. The error code will return if the defect was not corrected.
MANUAL INITIATED ELECTRONICS DIAG-
NOSTICS
1. To enter diagnostics¼
----from a error code display, press the #1
SELECT button.
----from a time display, press and hold the #1
SELECT button for 3 seconds.
You will see 1 of the following displays.
All of the preceeding displays show what position
the valve is in, if the turbine is operating, and the
position switch open or closed status.
2. Press the ON/OFF-HOLD button to advance
the valve to the next position. To verify
component operation, or to possibly isolate a
defect, observe the following.
POSITION SWITCH STATUS: WIth the valve in
service, or any of the recharge cycles, the switch
indicator will show open . While the valve is
rotating from 1 position to another, the indicator
will show the switch closed . A defect is
probable if indications vary from this pattern.