From: whit3rd@gmail.com   
      
   On Tuesday, January 30, 2024 at 12:45:26 PM UTC-8, Mike H wrote:   
   > I am trying to repair my Milwaukee M18 vacuum; model 0880-20. I left it   
   outside, it rained, and the rest is history.    
   >    
   > I have only a very rudimentary knowledge of electronics from building   
   Heathkits 45 years ago. That being said I am not afraid...    
   >    
   > Using my multi-meter as a continuity tester, I discovered a transistor that   
   got rusty from the rain and does not appear to be functioning.    
   >    
   > Can't seem to post a photo but it has 3 lines of text:    
   >    
   > IRF1404    
      
   That's a MOSFET, it has very low input drive current requirement.  It is   
   different   
   from bipolar transistors, doesn't have the same diode-check indications.   
      
   > In my testing I discovered if I connect a jumper between the left prong and   
   the center prong, the vacuum seems to operate normally. If that is safe to do,   
   I am happy to just solder a piece of wire between those prongs and call it a   
   day..    
      
   That doesn't mean that part is defective, it might just mean it isn't getting   
   an ON command.   
   Rust on a steel transistor case is unlikely to indicate a defect.   
      
   Sometimes current leakage (due to dirt or moisture) goes away... in about   
   a week, in a dry environment.   Wait a while and re-test would be my   
   recommendation.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)