[RE-wrenches] K1-Open Fault on SMA SB

Peter Giroux pgiroux at mindspring.com
Wed Jun 29 07:00:19 PDT 2016


Jason

    Fear not, I have had two in the last year and they were fantastic. Sent out new inverters as soon as I sent on the model and serial #'s. K-1 is not usually fixable so they send out new or refurbed units.

  Apparently it is caused by high voltage on the line side and after X # of times the relay just locks open.  Enjoy.

peter giroux
American Solar
  ----- Original Message ----- 
  From: Jason Szumlanski 
  To: RE-wrenches 
  Sent: Tuesday, June 28, 2016 12:37 PM
  Subject: [RE-wrenches] K1-Open Fault on SMA SB


  I'm heading out on my first K1-Open fault code on a SMA inverter. Any tips for diagnostic steps and likely outcome? I'm dreading the call to SMA based on recent feedback about their customer support.






  ​Jason Szumlanski



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