Hi,   
      
   A friend has a Kaussmann heat pump in her home. It produces a   
   noticeable but not loud whine.   
      
   Heated air is dispersed by a centrifugal fan with squirrel cage about   
   80 cm long x 9 cm diameter.  The blades are about 1 cm wide and 10 cm   
   long.  10 cm x 8 segments = 80 cm.   
      
   One of the blades is missing from the rightmost segment of the   
   squirrel cage and that may be the source of the whine.   
      
   According to the owner, Kaussmann is defunct.  Any ideas about repair?   
      
   Thanks,                         ... P.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)