I agree with Wayne. Just because you think you have done this correctly does 
not make it so. The only way to tell what is going on is to find the fault 
and you have not done that. You are changing the assembly and hoping you 
captured the fault. You may very well find the transducer is still good.
Steve
"Oliver Fleming"  wrote in message 
  node...
 Pray tell me how do you install it incorrectly?
 Plug it in and that's it.
 Make sure the cabling is secure and not stressed. etc. etc.
    I have installed it correctly.
    Airmar no longer makes these transducers and the woman who answered my 
 email was less than no help!
 Oliver Fleming
 "Wayne.B"  wrote in message 
 ...
 On Thu, 26 Jun 2008 12:41:06 +1000, "Oliver Fleming"
  wrote:
 These are made by Airmar, but does anybody have any idea why these
transducer fail prematurely.
 Probably due to incorrect installation.  Airmar makes a lot of
 transducers and most of them are pretty solid.
 Give them a call at 603-673-9570
 or
 http://www.airmartechnology.com/uplo.../ContactUs.htm