Discussion:
No travel!

When attempting to go either fwd. or rev. the unit travels an inch or two and then stops and fault codes 66 or 68 appear.
Any ideas out there?
  • Posted 14 Sep 2023 07:49
  • By DaveSr
  • joined 2 Mar'12 - 53 messages
  • California, United States
Never too old or too experienced to learn more.
Showing items 1 - 5 of 5 results.
Thanks again!
  • Posted 15 Sep 2023 04:29
  • By DaveSr
  • joined 2 Mar'12 - 53 messages
  • California, United States
Never too old or too experienced to learn more.
That could be the case. I would test the battery voltage at the positive terminal on each card first. One of the codes makes me think there may be a bad connection between the main controller and slave controller.
  • Posted 15 Sep 2023 04:11
  • By DyslexicNerd_01
  • joined 13 Jun'23 - 223 messages
  • Wisconsin, United States
In your opinion if all the cables seem secure and the battery is amply charged, is there a possibility that one of the "traction controllers" is faulty?
  • Posted 15 Sep 2023 02:53
  • By DaveSr
  • joined 2 Mar'12 - 53 messages
  • California, United States
Never too old or too experienced to learn more.
Thanks!
  • Posted 14 Sep 2023 22:50
  • By DaveSr
  • joined 2 Mar'12 - 53 messages
  • California, United States
Never too old or too experienced to learn more.
Code -66: Field FET current exceeded expected current limit.

Code -68: PMT enable signal from slave controller (MRC2) to master controller (MRC1) dropped below 5 volts.

Just by looking at the codes, it seems there may be a short in the system. I would check motor cables for tightness and ensure battery voltages are correct on both the main and slave controllers.
  • Posted 14 Sep 2023 10:16
  • By DyslexicNerd_01
  • joined 13 Jun'23 - 223 messages
  • Wisconsin, United States

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY
Global Industry News
edition #1252 - 16 October 2025
In this week’s Forkliftaction News , we report on the GEP Global Supply Chain Volatility Index which shows Asian supply chains are at their busiest since June 2022 while the US and Europe’s supply chains remain under-utilised. One of the report authors describes the situation as being “as stable as it’s going to get”... Continue reading
Movers & Shakers
Jim Tompkins Jim Tompkins
Chairman of the board, Tompkins Solutions
Director of government affairs, Associated Equipment Distributors
National dealer development manager, Castle Equipment Company
Sales operations, Heli
Fact of the week
Brussels Airport in Belgium, Europe is the world's largest sales point for chocolate, with over 800 tonnes of chocolate sold annually. This averages out to about 1.5 kilograms sold every minute.