SHOULD I FIX MY 2 YEAR OLD HOTPOINT CTD 85 T/DRYER ?

OVER THE LAST MONTH IT HAS BEEN LEAKING SOME WATER BUT WORKING. NOW IT STARTS UP O.K. BUT KEEPS BLOWING MAINS HOUSE FUSE. I WAS TOLD TO LET IT DRY OUT OVERNIGHT AS WATER MUST HAVE GOT INTO ELEC....THIS DID CURE IT BUT AS IT KEEPS ON HAPPENING I WAS TOLD IT MAY BE THE PUMP JAMMING. I OPENED UP TO FIND WATER IN THE HEATER COMPARTMENT AND ALL THE BOTTOM OF THE MACHINE. I FIDDLED WITH THE PUMP WHICH IS NOW WORKING BUT HEATER IS NOT WORKING NOW. WHEN THE MACHINE IS TURNED ON ETC IT STARTS BUT AFTER TWO MINUTES OR SO IT PAUSES AND F10 OR F8 FLASHES UP AND IT CONTINUES WORKING BUT COLD...AND THEN IT WILL NOT TURN OFF UNLESS YOU OPEN THE DOOR. DO I SPEND £50 REPLACING THE HEATER OR IS IT NOT WORTH IT?