Hi i can help you, send me a WhatsApp mensenger with a video +543875206595

Hi HeliPilot,
The controller can be repaired. If you are interested in repairing, please contact me at my email.

The part no is: 57617924

Can you please share the serial number of your forklift? and part number of faulty controller which Jungheinrich have been shared to you.

Thanks for the reply
As Jungheinrich are only offering a 6 month warranty on the part we are considering scrapping this machine which is a shame as it's a great fork lift in fantastic condition.
But can we risk the part going faulty again and another £10k to fix it.

I've seen similiar cases, and symptoms seem to be the same. I'm sorry but most probably the controller is bad.
As if it were other components, the screen would display some sort of error. Also even if you could source the part cheaper, it's not plug n play and Jungheinrich would need to configure it.
On older machine they used three separate controllers, and one was cheaper. This is a combination controlöer thus making it more expensive.