Netafim AlphaDisc 3, Quick Manual

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| AlphaDisc Filters quick user guide V1.0 29
15. Troubleshooting
NO BACKWASH
CONTINUOUS FLOW TO DRAIN
SYMPTOM POSSIBLE CAUSES REQUIRED ACTIONS
NO HYDRAULIC COMMAND TRANSFER
EXCEEDED HIGH FLOW RATE DROP DOWN
THE INLET PRESSURE.
CHECK THE IRRIGATION SYSTEM FLOW
RATE. CHECK THE IRRIGATION CONTROL-
LER.
COMMAND FILTER IS BLOCKED. MANUALLY CLEAN THE COMMAND FILTER.
NO COMMANDS TRANSFER
NO ELECTRICITY. BATTERIES VOLTAGE IS
LOW, OR BATTERIES ARE EMPTY.
CHECK THE ELECTRICAL SOURCE AND
CONNECTIONS. REPLACE BATTERIES IF
NEEDED.
SOME COMMANDS DO NOT ACTIVATE
ONE OR MORE OF THE SOLENOIDS DO
NOT FUNCTION.
CHECK SOLENOIDS' CONNECTIONS. RE-
PAIR OR REPLACE SOLENOIDS.
ONE OR MORE CONTROLLER OUTPUTS DO
NOT RESPOND.
CHECK THE CONTROLLER. REPLACE IF
NEEDED.
THE BACKWASH VALVES FAIL TO REVERSE
FLOW
HYDRAULIC RESISTANCE IN THE DRAIN-
PIPE.
DISCONNECT THE DRAINPIPE. CHECK
THE LENGTH, DIAMETER, AND THE PIPE
INCLINE.
MECHANICAL RESTRICTION OF THE IN-
TERNAL VALVE’S ACTUATOR.
REMOVE THE CYLINDER BOOSTER COVER.
PULL OUT THE INTERNAL ACTUATOR.
REPAIR OR REPLACE.
IN CASE ALL THE ABOVE DO NOT APPLY, CONSULT YOUR LOCAL DISTRIBUTOR.
SYMPTOM POSSIBLE CAUSES REQUIRED ACTIONS
STRONG LEAKAGE THROUGH THE DRAIN-
PIPE
ONE OR MORE OF THE SOLENOIDS DO
NOT RELEASE THE COMMAND.
DISCONNECT THE 8MM COMMAND TUBES
FROM THE CYLINDER BOOSTER. IDENTI-
FY THE FAILURE SOLENOID. REPAIR OR
REPLACE AS NEEDED.
THE BACKWASH VALVES FAIL TO RETURN
FROM FLUSHING TO FILTRATION MODE
DISCONNECT THE 12M DRAIN TUBES OF
THE BOOSTER CYLINDER, CHECK FOR
HYDRAULIC BACKPRESSURE FROM THE
DRAIN MANIFOLD
CHECK BACKWASH VALVES PERFOR-
MANCES, LOOK AND REMOVE ANY
OBSTACLES, REPAIR, OR REPLACE VALVE’S
ACTUATOR
IN CASE ALL THE ABOVE DO NOT APPLY, CONSULT YOUR LOCAL DISTRIBUTOR.