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SERVICE CODE FLOW CHARTS
Inspection, Voltage, & Current Tests on pages 17-23.
Code
171
Yes
Replace PIB.
Restart system. Wait for
system diagnostics.
(Approximately 5 minutes).
Is the
171 code still present?
No
System is working
correctly.
Replace the PIB.
Yes
No
Code combinations
of
171 & 189
or
171 & 190
?
No
No
Is the “Cell On” or
“Cell Reversing” light
on?
Replace PIB.
Confirm unit is set
to 100%
production, the
“Flow” light is lit
and the salinity is
within its proper
range. Replace
the PIB.
Yes
Remove Cell and
visually check calcium
build up and or debris. Is
the cell clean?
Clean the cell with 4 parts water and 1
part muriatic acid. Rinse with fresh
water when done.
No Code = System
Operating Normally
Different Code = Proceed to
that code.
Yes
Yes
No
No
Replace the PIB.
Reinstall and restart the unit. Wait for
system diagnostics.
(Approximately 5 minutes).
Does the system show the same
service code?
Conduct transformer voltage test and PIB DC
voltage tests. Are the voltages correct?
Yes
Yes
No
Visually check the DC cell cord
and outside of cell. Are they
connected loosely together or are
there signs of damage?
- Loose connection =
Reconnect firmly.
- Damaged cell or cord =
Replace cell and cord.
Next, Restart the unit and
wait for system diagnostics.
(Approximately 5 minutes).
Conduct the transformer
voltage tests. Are the
voltages correct?
Visually inspect sensor cable and
check for proper plumbing
installation. Are these good?
Damaged Cable = Replace sensor.
Incorrect Installation = Plumb correctly.
Remove and
clean sensor.
Yes
No
No Code = System
Operating Normally
Different Code = Proceed to
that code.
Yes
No
Conduct a sensor
reading test. Does it
pass the test?
Replace the flow sensor.
Replace the PIB.
Yes
No
Code
172
,
or combinations of
172 & 180,
or
172 & 181,
or
172 & 183,
or
172 & 184,
or
172 & 185,
or
172 & 186
?
Yes
No
115
230
Check Incoming Power. Is
the input voltage 115, or 230
VAC?
Is the unit still factory
wired for 230 VAC?
Rewire unit for 115
VAC.
Reinstall and restart the unit. Wait for
system diagnostics.
(Approximately 5 minutes).
Does the system show the same
service code?
No
No
Restart the unit. Wait for system diagnostics.
(Approximately 5 minutes).
Does the system show the
same service code?
Replace PIB
Replace Transformer
Yes
No
Conduct all voltage tests on the PIB. Are either or both voltages low?
No Code = System
Operating Normally
Different Code = Proceed to
that code.
Yes
Code combinations of
173 & 187,
or
173 & 188
?
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