DOES YOU POOL DOLPHIN CLEANER DUE A SELF TEST AND STOP OR RUN FOR A LITTLE WHILE AND STOP. THE MOST COMMON PROBLEM IS THIS MOTOR AND IT SUPER EASY TO FIX YOUR SELF. DON'T PAY SOMEONE HUNDREDS TO REPAIR YOU POOL CLEANER, FIX IT YOUR SELF WITH PATIENCE, A FEW TOOLS AND ONE OF THESE KITS. READ THIS FIRST!!!!!!! TAKE YOUR TIME BE VERY CLEAN TAKE PICTURES OF TAKING YOUR BOT APART. GET THE MOTOR NUMBERS AND A PICTURE OF YOUR MOTOR. THE KIT WITH THE SHAFT SEALS IS THE ONE I RECOMMEND AND USE TO FIX MOST MOTORS I SELL. THE SPRINGS IN THE SHAFT SEALS ARE USUALLY RUSTY, WEAK, BRITTLE, OR MISSING THAT RIDES ON THE SPINNING SHAFT AND SEALS WATER OUT OF THE MOTOR AND HOUSING. REPLACING IS A MUST IF YOUR CLEANER IS OLDER THAN 2 YEARS OR HAIR OR SOMTHING ON THE SHAFT HAS CONTACTED THE SEALS.GET THE KIT WITH THE SHAFT SEALS FOR A TRUE WATER TIGHT REPAIR. I ALSO SELL O-RING KITS FOR MOST MOTOR UNIT BLOCK HOUSINGS CHECK MY STORE OR CONTACT FOR DETAILS.TO GET THE O-RING KITS. LOOK AND SEE IF THE MOTOR BRUSHES WORE DIFFERENT LENGTH IF THEY ARE YOU NEED NEW SPRINGS.TO DO THIS REPAIR COMPLETELY AND CORRECT. YOU MUST SOLDER BRUSHES TO PLATE AND PULL AND TAP ON BEARINGS. BASIC KIT= COMES WITH NEW 2 BEARINGS, 2 MOTOR BRUSHES, NOSE O-RINGS, 2 AND 1 BLUE BOT LUBE PACK. SEAL KIT= COMES WITH 2 NOSE SHAFT SEALS +ABOVE. PRO KIT= COMES WITH 2 MOTOR BRUSH TENSION SPRINGS + ABOVE I CAN ALSO GIVE YOU INSTRUCTIONS ON THE REPAIR. INFORMATION COMES WITH KIT. NOTE: THIS IS THE REBUILD KIT FOR IMPELLER MOTORS ONLY!!! I HAVE THE MAIN HOUSING O-RING'S ALSO TO HELP SEAL YOU BOT BOX UNIT CORRECTLY. SEE MY STORE FOR OTHER PARTS. I HAVE THESE MOTORS IN STOCK IF YOU NEED A REMANUFACTED MOTOR. ALSO REPAIR JUST ABOUT ANY PROBLEMS YOU HAVE WITH YOU POOL CLEANER SO CONTACT ME WITH YOUR PROBLEM AND LET ME KNOW WHAT YOU HAVE AND NEED. PLEASE VISIT MY STORE FOR MORE REPAIR PARTS FOR YOU POOL CLEANER AND MORE.