At the end of the day
You're never gonna get anything impressive in the price range these machines sell for, you don't, however, expect them to explode!
It may not only be Candy or Hoover machines this happens to, but these machines do seem to be doing it more than other brands. It's only right this is brought to public attention, this could be very dangerous!
Having used machines made by Candy, Indesit, Beko and Antonio Merloni, I certainly know I'd never want one unless I had no choice! The build quality of low end machines like these tends to be visibly poor and flimsy to the touch.
I'd like to think this would push manufactuers to improve the build quality of low-end brands, and push consumers to pay a bit more for a better quality machine where possible. Sadly, I highly doubt it.
Matt