Hi guys, my return pumps coating on the wire started coming off and is now leaking electricity. Is there a way that I can replace this wire? I half heartedly tried to open the cover but it is on quite tight, and I am afraid I break it. Have anyone successfully replaced these wires? The leak is right where the wire goes into the cover. I have tried to close the leak with silicon and isolation tape but still it leaks electricity . Any help would be appreciated