Crown RD5020-30:
error codes 331; 814; 342; 343

got a crown deep reach cutting out during travel. the two times it did it for me i code error codes 331 and 814. checked error log and saw that there were two other codes 342, 343. found on here that the 331 pertains to the drive motor encoder more than likely having a break at the wires near the encoder. anyone here able to tell me what the others are?
  • Posted 5 Jun 2014 22:28
  • Discussion started by clark_u
  • Ohio, United States
Showing items 1 - 9 of 9 results.
irrk1 Re 331 code

Check drive motor for loose brush holders, brushes stuck or bad connections, weak brush springs. I have seen this before on high hour trucks.

Good luck
  • Posted 30 Nov 2015 03:36
  • Reply by wilmer_p
  • Alberta, Canada
on the 331 topic i have RD 5000S truck that codes 331 when driving but not on a jack while off the floor checked encoder..going by what book says its pulses fine and in analyze mode the encoder counts...truck runs good but when load is put on its codes 331 i did try diffrent Acess 3.... still the same 331..any idea
  • Posted 2 Oct 2015 04:07
  • Reply by irrk1
  • Massachusetts, United States
check your traction pot..pot#1 and height or height reset switch
  • Posted 2 Oct 2015 04:01
  • Reply by irrk1
  • Massachusetts, United States
Does the drive motor have a sensor bearing inside the top of the motor, 4 wires that come from it
  • Posted 3 Apr 2015 16:20
  • Reply by southernviking
  • South Island, New Zealand
Before going any further sort out the battery. It amazes me how people will throw money at machines trying to sort a fault then mention the battery is just about toast. Any truck I get cutting out I allways check the battery first a poor battery can and will throw up all sorts of codes
  • Posted 29 Mar 2015 00:34
  • Reply by lifter01
  • West Yorkshire, United Kingdom
cool thanks guys. now with the same truck i replaced the lift encoder and forward and reverse optic switches. i repined the plug to the drive motor encoder but the 331 is back along with 245,243,333,342, and the 814 popped back up. the battery is not in the best condition and smells of sulfur
  • Posted 20 Jun 2014 00:05
  • Reply by clark_u
  • Ohio, United States
f331 is traction encoder as already mentioned
F342 is traction pot not matching reverse switch
F343 is forward and reverse switch activated at same time ( usuallyt dirty opticl switch blow dust out at base of handle)
F814 is raise command but height encoder not increasing
  • Posted 10 Jun 2014 18:17
  • Reply by crownie
  • Victoria, Australia
331 is an traction encoder problem, make sure the encoder is tight via the set screw. Is it the old square encoder or new round style encoder? Also 814 i believe is associated to a battery code, check and make sure the battery is in good condition as well as topped off with water. A failing battery can cause traction and lift problems with any Access module trucks. Report back with you findings please.
  • Posted 10 Jun 2014 02:22
  • Reply by Crownguy1
  • Pennsylvania, United States
You are right on the 331 code. If you already replaced the encoder and the problem is still there, then look at the wires in the plug on truck where encoder plugs in for a half broken wire. You may have to pull slightly on wire to check. I have also seen bad drive motors and bad brushes in drive motor pop up this code.
  • Posted 6 Jun 2014 12:21
  • Reply by mcguyver
  • Mississippi, United States
Do it right the first time.

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