HOW I CAN FIX MY KELVINATOR WASHING MACHINE? MODEL KM45W?

IT DOES NOT CONTINUE THE WASHING CYCLE AFTER IT FILLS UP WITH WATER AT NUMBER TWO ON THE SELECTOR SWITCH. IT STOPS FROM NUMBER THREE TO FOUR AND WHEN I SWITCH IT MANUALLY BETWEEN FOUR AND FIVE IT STARTS TO WASH AGAIN AND IT COMPLETES THE CYCLE. IS THE TIMER FAULTY AND HAS TO BE REPLACE? AND ALSO THERE ARE TIMES THAT WHEN IT FILLS UP WITH WATER, THE WATER CONTINOUSLY FLOWS DOWN FROM THE DRAIN HOSE. PLEASE KINDLY SEND YOUR REPLY AND I APPRECIATE YOUR HELP VERY MUCH. THANK YOU AND GOD BLESS.