Troubleshooting Chart - Liberty Pumps Ascent ASC-1 Manuel D'utilisation

5-2

TROUBLESHOOTING CHART

RISK OF ELECTRIC SHOCK. ALWAYS DISCONNECT THE POWER SUPPLY BEFORE PERFORMING
ANY SERVICE TO THE MACERATING TANK.
PROBLEM
MOTOR TURNS NORMALLY BUT
THE WATER EVACUATES SLOWLY
FROM THE BOWL (FLUSH
INCOMPLETE)
WASTE BUILD UP IN BOWL.
THE MACERATING PUMP UNIT
DOES NOT START UP. WATER
DOES NOT EVACUATE.
THE MOTOR HUMS BUT DOES NOT
TURN AND THE WATER DOES NOT
EVACUATE.
THE WATER EVACUATES FROM
THE TOILET BUT THE MOTOR RUNS
FOR A VERY LONG TIME, THERMAL
OVERLOAD ACTIVATES
AFTER EVACUATION THE MOTOR
ENGAGES SEVERAL TIMES IN
SUCCESSION BEFORE IT STOPS
COMPLETELY.
MOTOR TURNS NOISILY WITHOUT
STOPPING OR PUMPING.
AFTER EVACUATION THE MOTOR
STARTS, STOPS, AND RE-ENGAGES
INDEFINITELY.
MOTOR TURNS WITH A RATTLING
NOISE.
WATER BACKS UP INTO SHOWER
TRAY OR BATHTUB.
CAUSE
DISCHARGE PIPE BLOCKED OR VALVE
NOT VENTED PROPERLY.
INADEQUATE WATER SUPPLY FROM
WATER CLOSET.
POWER SUPPLY OFF. THERMAL
OVERLOAD CUT OUT.
FOREIGN BODY BLOCKING THE
MACERATING BLADES OR PUMP.
KINKED / BLOCKED DISCHARGE PIPE,
DAMAGED MEMBRANE, DEFECTIVE
IMPELLER, AND PARTIALLY BLOCKED
PUMP.
WATER SIPHONS BACK INTO THE
MACERATING PUMP UNIT. CHECK
VALVE IS NOT FUNCTIONING
PROPERLY.
SIPHONAGE OR INSUFFICIENT BACK
PRESSURE IN DISCHARGE PIPE,
CAUSING AIR-LOCK. FOREIGN OBJECT.
WATER LEAKING FROM TOILET TANK
INTO BOWL. FAULTY NON-RETURN
CHECK VALVE.
SOLID ITEM HAS FALLEN INTO THE
GRILL OF THE MACERATING PUMP
UNIT.
INADEQUATE GRAVITY-FALL INTO
MACERATING UNIT OR BLOCKAGE IN
DRAIN PIPING. FAULTY INLET CONTROL
FLAP.
©Copyright 2008 Liberty Pumps Inc. All rights reserved.
REMEDY
CLEAN DISCHARGE AND VENT
PIPING.
CHECK AND/OR ADJUST WATER
LEVEL IN TOILET TANK.
CHECK ELECTRICAL. WAIT FOR
THERMAL OVERLOAD TO ENGAGE
(APPROX. 20 MINUTES).
REMOVE COVER, CLEAN AROUND
MACERATING BLADE. ENSURE
DISCHARGE AND VENT PIPING NOT
BLOCKED.
CHECK INSTALLATION, AND/OR
INSIDE THE MACERATING PUMP
UNIT.
FLUSH ONCE OR TWICE WITH CLEAN
WATER TO CLEAR VALVE OR
REMOVE VALVE TO CLEAN OR
REPLACE.
MODIFY DISCHARGE PIPE RUN TO
ELIMINATE SIPHONAGE AND/OR
INCREASE BACKPRESSURE BY
REDUCING PIPE SIZE. REMOVE
FOREIGN OBJECT.
CHECK FLUSH VALVE. CHECK AND
CLEAN NON-RETURN CHECK VALVE.
CLEAR OBJECT FROM GRILL AREA.
1/4" PER FOOT GRAVITY FALL
MINIMUM INTO MACERATING PUMP
UNIT FROM OTHER SANITARY
FIXTURES. CLEAN OUT THE FLAP.
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