We have a place over here who rebuild them, but they go wrong due to fatigue in, among other things, the internal springs which are very precisely manufactured. The cost to rebuild over here is £120 ($180) approx. I think John Hervey offers a service too. Martin #1458 #4426 DOC UK > Is there a way to rebuild these? Mine is not working properly as > well, and I have an extra. I would like to rebuild the extra and > install it. I know of cleaning it out and making sure it's not > clogged. what about the electronics? can this be serviced? > > Erik > > >