I hate reading posts about TM problems. It makes me worry that this could happen to me. I would hate to send it away and be without it for a few days or weeks. Hope your problem is nothing serious Kath
Your suggestion about the blades is a possibility though, don't they need replacing every couple of years?How did you check the blades - what did you see that told you they needed replacing?
New blades are $135 +post.