Yale error 239, 241, 246

We have been getting these errors for a while now. Sometimes we can go weeks before seeing them and then like right now we are kicking if we can even get the lift to move 2 ft.

Had techs come out and didn't know what to make of them.

239- Slave in alarm
241- No Communication Slave to Master
246- No Communication Slave to Dash

Any clarification on these would be very much appreciated.

It is a Yale Sitdrive ERP030-040TH [F807]

Thank you very much,
  • Posted 19 Dec 2014 01:03
  • Discussion started by corey_b
  • Minnesota, United States
Showing items 1 - 4 of 4 results.
Hi Cory B ,

The good news is that 241 and 246 are the same as 239 apart from the fact that there is a termination resistor to check out and it is located between terminals A7 and A22 at the dash display and your looking for 60 oh sin essence your looking for a bad connection on wiring and switches and excessive voltage drop across main contractor or contacts check for contacts burning.

Regards Nero

PS I would like to wish you guys a merry Christmas, all you engineers driving home to night take it easy. All you guys on night shift and call out Ill be thinking of you, I've been there.
  • Posted 20 Dec 2014 05:43
  • Reply by NER045
  • North Yorkshire, United Kingdom
Just shared **** reply with my manager. He wanted me to mention that the last technician that was out said that 2 of the battery cells were dead, reset all the pins in the harness and when you wiggle the connectors to the main board all the error codes will come up.
  • Posted 20 Dec 2014 03:07
  • Reply by corey_b
  • Minnesota, United States
Uh, WOW. That is a lot. And for just the first code.

Thank you very much for your reply. I will check this all out tomorrow when I get back in the shop. I look forward to what you have in the other codes.

I am sure my manager will ask, so could give me a brief translation of what the errors are?

Thank you again Nero.
  • Posted 19 Dec 2014 11:27
  • Reply by corey_b
  • Minnesota, United States
Cody B,

Let's deal with these codes one at a time as there is a lot of info to get through.

239 Master controller has detected a problem with the slave controller.

1 ensure all your fuses are tight and secure and also wiring terminals
Check key switch terminals and wiring and battery Disconnect switch
Check key switch and main contactoroi switch plus battery disconnect switch are making good contact.
Check the main cot actor and puimp contractor switch if equipped for condition ie not burnt up.
Recycle key switch from off to on, check resistance between CANNH and CANNL at traction controller it should be about 60 ohms.
Check the CannL and CannH B+ and B- are not shorted to frame of truck.
Check CannL and CannH are not shorted to B- and B+.
Check all can is wiring for loose connections and damaged wiring.
If the truck is equipped with electro hydraulics option check for continuity between the hydraulici levers mounting plate and the truck frame.
ETACC test may be conducted on the system if you have access to the ETACC soft ware.
As you can see there is a lot of info, I will deal with the other codes later when Ilook them out.

regards Nero
  • Posted 19 Dec 2014 08:51
  • Reply by NER045
  • North Yorkshire, United Kingdom

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