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If power fails while the unit is in backwash, the control will save the current valve position
before it shuts down. When power is restored, the control will resume the backwash cycle
from the point where power failed. Note that if power fails during a backwash cycle, the
valve will remain in its current position until power is restored.
The control will not start a new backwash cycle without power. If the valve misses a
scheduled backwash due to a power failure, it will queue a backwash. Once power is
restored, the control will initiate a backwash cycle the next time that the Time of Day equals
the programmed backwash time. Typically, this means that the valve will backwash one day
after it was originally scheduled.
THE DRAIN LINE PLUMBING CONFIGURATION SHOULD INCLUDE ALL REQUIRED
SAFETY COMPONENTS TO PREVENT OVERFLOWS RESULTING FROM A POWER
FAILURE DURING REGENERATION.
MAINTENANCE & TROUBLESHOOTING
THE CONTROLLER MUST BE DEPRESSURIZED BEFORE REMOVING ANY QUICK
CONNECTION CLIPS OR THE VALVE ITSELF FOR SERVICING. THE CONNECTOR
SHOULD BE PUSHED TOWARD THE CONTROL VALVE WHILE REMOVING CLIPS.
Service Recommendations
Your Fleck 5810 valve is built for long term operation with limited maintenance. The seals
and spacers and piston assembly require periodic servicing or replacement, generally every
2 to 5 years. See Service Bulletin #5810-1 for instructions on this procedure.
NextSand media should generally be replaced every 5 years. Inadequate backwash
duration or flow rates could cause media clogging which could require the replacement of
the media to restore flow and pressure performance.
