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Code 21 on mod 09

NR4000 error code : 21 - on mod 09. Having trouble locating the cause of this code.
  • Posted 25 Sep 2015 00:44
  • Modified 25 Sep 2015 00:47 by poster
  • By donald_p
  • joined 25 Sep'15 - 1 message
  • Kentucky, United States
Just fix it.
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mod 9 is the "mhyrio controller" [hydraulic valve controller], my book does not list a code 21, it does list a 31, but if it was me, I would be 'eye-balling' or replacing the over the mast and out the reach cables to the valves on the reach.
  • Posted 26 Sep 2015 09:11
  • Modified 26 Sep 2015 09:13 by poster
  • By edward_t
  • joined 5 Mar'08 - 2,334 messages
  • South Carolina, United States
"it's not rocket surgery"
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In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.