I have a Sundance Royale from 91. It keeps blowing the 1.25a fuse. I hooked it up roughly 2 months ago with no issues and it's been running until about a week ago. About every 5 hours or so the fuse just blows and the LCD goes out. I hate replacing the fuse every so often but it's really cold here and I'm worried about the tub freezing and cracking.

Why could the 1.25a fuse by blowing so often, or at all even...

thanks,
Chris

that fuse is designed to protect the board in case the transformer is going bad. Probably a good idea to replace the transformer.