Our vaccum cleaner has lost suction - the motor goes on, and air seems to be blown out by the motor but very little suction is produced.
Is there a simple series of checks I can run through to try to get it going again? I'm not very good with vacuum cleaners - this is DH's department, but he is away for two weeks and the house is covered in dust from building works. I have changed the bag but that hasn't helped...
It's a Miele Cat & Dog, if that's of any relevance.