Discussion:
error code EH4-4

The truck has 4 way hyd's. with the mini-levers. The **** broke for the 4th control, ordered new mini-lever and installed. All 4 hyd. functions worked for about 15 min., then the new 4th control stopped working and this code flashed. Plugged in the old lever, which did work even though the **** was broke, and all hyd. controls stopped working. Plugged in the new one again and all hyd. control stopped working. Leave the 4th control disconnected and the other 3 work. Does the truck need to be set up to recognize a new switch? Seem like a defective switch? Any info. would help.
  • Posted 15 Nov 2013 21:55
  • By Louis
  • joined 7 Aug'10 - 19 messages
  • Pennsylvania, United States
Showing items 1 - 2 of 2 results.
I got the code to access matching. Thanks for the reply.
  • Posted 18 Nov 2013 21:54
  • By Louis
  • joined 7 Aug'10 - 19 messages
  • Pennsylvania, United States
You may have to match the lever value in the computer in order for it to work. The computer sees a different value than it had before and shuts down. Once you changed it the old does not work because of the fault. You may get luck and disconnect the negative cable and unplug the connectors on the levers and plug them all back in and reconnect the cable. It may reset the neutral in the system.
  • Posted 17 Nov 2013 04:23
  • By rogeriwt
  • joined 10 Apr'07 - 323 messages
  • Massachusetts, 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.

Fact of the week
According to studies published in the English Journal of Medicine, the impact of daylight savings is revealed by a 24% increase in heart attacks on the Monday following the spring shift forward. When clocks move back in autumn, heart attacks drop by about 21%, suggesting that loss of sleep is an important driver.
Komatsu FD25T17
Braeside, Melbourne, Victoria, Australia
Hire
UN Forklift FD50T-NJB3
HANGZHOU, Zhejiang, China
New - Sale
Upcoming industry events …
December 4–7, 2025 - Goyang, Korea, Republic Of
March 10-12, 2026 - Hong Kong, Hong Kong
June 30-July 2, 2026 - Birmingham, United Kingdom
Global Industry News
edition #1258 - 27 November 2025
In this week’s Forkliftaction News , we report on Hyster-Yale laying off staff in the US amid what it describes as “challenging market conditions”... Continue reading
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY