Yale ERC040ZFN36S0088:
No forward or reverse; no power steering

Code -24 Showing on display, Directional contactors close in either direction, no SCR hum or power steering. SCR controlled hydraulics work OK. Drive motor OK when powered up manually by physically closing directional, bypass, and RB contactors. Thanks for your assistance. Correction- Model is a ERC040ZRN36S0088, data plate was hard to read.
  • Posted 10 Jun 2021 23:49
  • Modified 11 Jun 2021 04:02 by poster
  • Discussion started by Saxon
  • Pennsylvania, United States
Showing items 1 - 2 of 2 results.
I printed your response and gave it to my tech. Thanks for your help, I'll let you know how things work out.
  • Posted 15 Jun 2021 03:03
  • Reply by Saxon
  • Pennsylvania, United States
check your directional contactors real good, if they are worn and not making good contact they can cause this code. Also the regen brake (RB) contactor can cause this fault too.
it is seeing an open motor circuit so those 2 contactor assy's are the most common cause. it also says to check the other contactors too, 1A, PS or FW.
first check the outputs on the controller and make sure terminals 6 and 8 are energizing for the fwd/rev circuit. if you are getting contactor operation then check the tips and hardware for wear.
Also check the control wiring around the RB and 1A contactors and make sure they are not melted to the frame of the contactor, iv'e seen this before where the wire gets against the frame of the contactor and it gets hot and melts the wire and it shorts out against it.
  • Posted 12 Jun 2021 15:54
  • Reply by swoop223
  • North Carolina, United States
You've been swooped!
swoop223@gmail.com

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