Breach of contract

I BOUGHT A KELVINATOR 14KG TWIN TUB ON 2013/08/01 AND IT HAD A TWO YEARS GUARANTEE. THE MACHINE BROKE 4 TIMES, 3 TIMES WAS ON SPINNER, AND LAST TIME IT BROKE ON THE SPINNER AGAIN WAS ON JUNE 2015. IT WAS REPAIRED, A PART WAS EXCHANGED AND IT ONLY WORKED FOR A FEW DAYS. I LODGED ANOTHER COMPLAIN BUT THIS TIME IT WAS REPORTED TO KELVINATOR. I PHONED KELVINATOR AND THEY SAID I MUST PAY. THE HISTORY OF THE MACHINE AND THE SERVICE IT GAVE ME WAS NOT A PLEASANT ONE. MY GUARANTEE WAS ON UNTIL 31/07/2015. SO WHY MUST I PAY FOR SOMETHING WHICH IS UNDER GUARANTEE? FOR ANY APPLIANCE THAT CAN BE REPAIRED 3 TIMES ON THE SAME PART SHOULD BE EXCHANGED