Sorry guys – switches are mechanical items that can fail or break. If your unit is under warranty, you should send it in to be fixed. If it is out of warranty or it is not possible to get it to a dealer you need a friend who is handy with a screwdriver and soldering iron. If you contact email@example.com, the nice man there will send some new switches for a modest fee ( or gratis if he is in a good mood ).
Just want to say THANK YOU EVENTIDE for sending me new switches for my MF. Not only your products are superior on the market, but your customer service is efficient, kind and generous. Keep up the good work and once again – thank you very much.