Troubleshooting SXT
Error Codes
NOTE: Error codes appear on the In Service display.
Error Code
Error Type
Cause
Reset and Recovery
0
Motor Stall /Cam Sense
Error
No state changes in the optical sensor
are detected for 6 seconds.
Unplug the unit an plug back in. Allow the control to attempt to find position again.
Verify the optical sensor is in place with the wires connected to the circuit board.
Verify the motor and drive train components are in good condition and assembled
properly. Check the valve and verify that the piston travels freely. Replace/reassemble
the various components as necessary.
Plug the unit back in and observe its behavior. If the error reoccurs, unplug the unit,
put it into bypass and contact technical support.
1
Motor Run-On Error /
Cycle Sense Error
An undesired optical sensor state
change occurred.
Non-critical error. Extra optical sensor pulse detected. Press any button to clear the
error. Press extra cycle button to advance motor to clear error.
2
Regen Failure
The system has not regenerated for
more than 99 days (or 7 days if the
Control Type has been set to Day-of-
Week).
Perform a Manual Regeneration to reset the error code.
If the system is metered, verify that it is measuring flow by running service water and
watching for the flow indicator on the display. If the unit does not measure flow, verify
that the meter cable is connected properly and that the meter is functioning properly.
Enter Master Programming Mode and verify that the unit is configured properly, For
the valve configuration. Check that the correct system capacity has been selected,
that the day override is set properly, and that meter is identified correctly. If the unit
is configured as a Day-of-Week system, verify that at least one day is set ON. Correct
the setting as necessary.
3
Memory Error
Control board memory failure.
Perform a Master Reset and reconfigure the system via Master Programming Mode.
After reconfiguring the system, step the valve through a manual regeneration. If error
continues, call technical support.
4
Fail Safe Error
Valve has failed to find position in one
minute.
Unplug the unit and plug it back in. If error continues, call technical support.
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