Crown SP3400:
SP3420-30

Can someone help me with a 339 code?
  • Posted 2 Mar 2017 09:18
  • Discussion started by larry_g
  • California, United States
Showing items 1 - 9 of 9 results.
Thank you, That is exactly what I did. It appeared to be a loose connection.
  • Posted 21 Jul 2017 04:45
  • Reply by larry_g
  • California, United States
Thank you, That is exactly what I did. It appeared to be a loose connection.
  • Posted 21 Jul 2017 04:45
  • Reply by larry_g
  • California, United States
The 3000 series SP is notorious for loose connectors on the distribution board. First thing to do is just unplug/plug back in all the connectors. It may also trip a 342 code (traction pot). Connector CA204 on the distribution board is most likely the culprit.
  • Posted 28 Jun 2017 10:47
  • Reply by Ifixit
  • Pennsylvania, United States
Voltage appears to be ok. My last error code was 333.
  • Posted 28 Jun 2017 06:16
  • Reply by larry_g
  • California, United States
I will give it a try.
  • Posted 27 Jun 2017 07:03
  • Reply by larry_g
  • California, United States
Have you checked the voltage with a meter?
  • Posted 27 Jun 2017 06:49
  • Reply by BREWSKI
  • Nebraska, United States
By the way, I placed a new battery in the unit 2 weeks ago. Two days ago it was running fine. This morning, forward and revers are very slow, reverse almost non existent. Any ideas?
  • Posted 27 Jun 2017 06:40
  • Reply by larry_g
  • California, United States
Thank you, I found it as well.
  • Posted 27 Jun 2017 06:37
  • Reply by larry_g
  • California, United States
339 Access 3 module (MRC1) Detected low battery
Steer Trac Lift Disable
Check batt and Connections
If event persists R&R MRC1
  • Posted 9 Mar 2017 04:56
  • Reply by chevotaman
  • Texas, United States
It's all just nuts n' bolts.

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