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5-2 TROUBLESHOOTING CHART RISK OF ELECTRIC SHOCK. ALWAYS DISCONNECT THE POWER SUPPLY BEFORE PERFORMING ANY SERVICE TO THE MACERATING TANK. PROBLEM CAUSE REMEDY MOTOR TURNS NORMALLY BUT THE WATER EVACUATES SLOWLY DISCHARGE PIPE BLOCKED OR VALVE CLEAN DISCHARGE AND VENT FROM THE BOWL(FLUSH NOT VENTED PROPERLY, PIPING. INCOMPLETE) :I WASTE BUILD UP IN BOWL, INADEQUATE WATER SUPPLY FROM CHECK ANDIOR ADJUST WATER WATER CLOSET. LEVEL IN TOILET TANK. THE MACERATING PUMP UNIT POWER SUPPLY OFF.THERMAL CHECK ELECTRICAL.WAIT FOR DOES NOT START WATER OVERLOAD CUT OUT. THERMAL OVERLOAD TO ENGAGE DOES NOT EVACUATE. (APPROX.20 MINUTES), THE MOTOR HUMS BUT DOES NOT REMOVE COVER,CLEAN AROUND TURN AND THE WATER DOES NOT FOREIGN BODY BLOCKING THE MACERATING BLADE.ENSURE EVACUATE. MACERATING BLADES OR PUMP. DISCHARGE AND VENT PIPING NOT BLOCKED. THE WATER EVACUATES FROM KINKED/BLOCKED DISCHARGE PIPE, THE TOILET BUT THE MOTOR RUNS DAMAGED MEMBRANE,DEFECTIVE CHECK INSTALLATION,AND/OR FOR A VERY LONG TIME,THERMAL IMPELLER,AND PARTIALLY BLOCKED INSIDE THE MACERATING PUMP OVERLOAD ACTIVATES PUMP, UNIT. AFTER EVACUATION THE MOTOR WATER SIPHONS BACK INTO THE FLUSH ONCE OR TWICE WITH CLEAN ENGAGES SEVERAL TIMES IN MACERATING PUMP UNIT.CHECK WATER TO CLEAR VALVE OR SUCCESSION BEFORE IT STOPS VALVE IS NOT FUNCTIONING REMOVE VALVE TO CLEAN OR COMPLETELY. PROPERLY. REPLACE. MODIFY DISCHARGE PIPE RUN TO MOTOR TURNS NOISILY WITHOUT SIPHONAGE OR INSUFFICIENT BACK ELIMINATE SIPHONAGE AND/OR STOPPING OR PUMPING. PRESSURE IN DISCHARGE PIPE, INCREASE BACKPRESSURE BY CAUSING AIR-LOCK.FOREIGN OBJECT, REDUCING PIPE SIZE.REMOVE FOREIGN OBJECT. AFTER EVACUATION THE MOTOR WATER LEAKING FROM TOILET TANK STARTS,STOPS,AND RE-ENGAGES INTO BOWL.FAULTY NON-RETURN CHECK FLUSH VALVE.CHECK AND INDEFINITELY. CHECK VALVE. CLEAN NON-RETURN CHECK VALVE. MOTOR TURNS WITH A RATTLING SOLID ITEM HAS FALLEN INTO THE NOISE. GRILL OF THE MACERATING PUMP CLEAR OBJECT FROM GRILL AREA. UNIT. INADEQUATE GRAVITY-FALL INTO 1I4"PER FOOT GRAVITY FALL WATER BACKS UP INTO SHOWER MACERATING UNIT OR BLOCKAGE IN MINIMUM INTO MACERATING PUMP TRAY OR BATHTUB, DRAIN PIPING.FAULTY INLET CONTROL UNIT FROM OTHER SANITARY FLAP. FIXTURES.CLEAN OUT THE FLAP. ®Copyright 2008 Liberty Pumps Inc, All rights reserved. 8 I: