I appreciate your stance on waste, but the reality is that a lot these types of products are not designed to be repaired. They're built on highly specialized assembly lines and once they've been put together there really isn't any economical way to disassemble and replace most of the components. I think you'll probably have to bite the bullet and buy a replacement.
tyvm sminlal... i'l just have to look for the best brand then. meanwhile, i'l tinker and see if i can make a frankenstein out of this one LOL!