I broke the reversing switch on my PS20 this weekend. Sent Bosch an email and got a response this am requesting I fax them info. Faxed info about 10 am got a phone call at noon letting me know they were shipping a replacement head unit 2 day air as the switch is back ordered. Can't ask for a much better response than that. (I did register online with the purchase info, so I guess it helps.)