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   alt.electronics      Electronics design, repair, worship, etc      7,706 messages   

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   Message 6,067 of 7,706   
   Espressopithecus (Java Man to All   
   Relay Behavior -- Any Ideas?   
   09 May 08 17:21:28   
   
   From: rickk@letterectomyTELUS.net   
      
   I know very little about electronics (E=IR is about my limit).   
      
   A relay on the control board for my espresso machine switches power to   
   the 1200W heating element.  Normally, it closes each time power is   
   called by the thermostat device.  But lately, the relay clicks but   
   doesn't stay closed.   
      
   I've checked many possible causes and found only one anomaly.   
   Resistance of the heating element should be ~ 12 ohms, but a check with   
   a digital multimeter shows it as only ~ 1 ohm.   
      
   Is it likely that the relay is failing to stay closed because the   
   current drawn by the heating element is too high?   
      
   Thanks,   
      
   Rick   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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