My loo won't flush but it's difficult to diagnose the problem as the cistern is concealed behind a tiled wall and impossible to access. The cistern is operated by a push button mechanism. I've unscrewed this but the hole behind it isn't big enough to access the cistern itself. Could be the problem is with the button itself or the air tube that's attached. Shouldn't be worn as it's only about 18 months old. Am I going to have to remove tiles to access or is there a trick I'm missing here? Suggestions would be gratefully received. Cheers.

Susan, July 2010

Now that depends who and how it was put in. If it is on a party wall to another room there may be an access panel in that room. I've also seen a panel of tiles on a board held in with heavy duty magnetic cupboard catches worked well two suction pads to lift it clear to access cistern.

Bob, August 2010