I PURCHASED A DOLPHIN DELUX 4 POOL CLEANER SYSTEM MANUFACTURED BY MAYTRONICS ON JUNE 4TH, 2009 FROM THEIR DEALER, LESLIE'S SWIMMING POOL SUPPLIES 159 N Burkhardt Rd. Evansville, IN 47715-2727 (812) 476-1077. THE UNIT WORKED AS ADVERIIZED THROUGH JUNE AND JULY. I FOLLOWED THE VERY LIMITED MAINTENANCE INSTRUCTIONS IN THE MANUAL, AND THE WEBSITE AFTER EACH USE. THE UNIT STOPPED WORKING AROUND AUGUST 1ST; I FOLLOWED INSTRUCTIONS IN CLEARING ANY OBSTRUCTIONS FROM THE DRIVE UNIT AND IMPELLER. I BROKE THE FUSE HOLDER TRYING TO REMOVE THE FUSE, AND REPLACED IT WITH ONE FROM RADIO SHAK. THE UNIT APPEARED TO HAVE POWER, (THE POWER LIGHT ON THE POWER SUPPLY ILLUMINATED, AND THE CABLE SHOWED 30 VDC AT THE PLUG IN CONNECTOR ON THE POWER SUPPLY. THE UNIT STILL WOULD NOT OPERATE. I CHECKED THE WEBSITE, AND CALLED MAYTRONICS, WAS ADVISED TO RUN THE FILTER BAG THROUGH A WASHING MACHINE CYCLE WITH OXYCLEAN, I DID AND THE UNIT IS STILL INOPERABLE, I CALLED MAYTRONICS BACK AND WAS TOLD TO RETURN THE UNIT TO LESLIE'S WHERE I PURCHASED IT. I WAS TOLD "WE DON'T REPAIR THOSE; YOU NEED TO SEND IT BACK TO MAYTRONOICS. I CALLED MAYTRONICS AND WAS ABLE TO GET THEIR CUSTOMER SERVICE PERSON ON THE PHONE WITH THE LESLIE STORE EMPLOYEE. THE TWO OF THEM ARGUED FOR A FEW MINUTES, THEN ASK ME TO ALLOW THEM TO CALL ME BACK. IVE HEARD NOTHING YET. I SPENT NEARLY $1100.00 FOR THIS UNIT, AND SIMPLY WANT IT TO BE REPAIRED OR REPLACED.