Serial: 8NN80089, 48v 2007 Model

Hi we have this reach truck which originally had error Alarm RI01 card error. We took the 2 cards from near the valve blocks and test it on another truck and it came up with the same error.

However, after putting the 2 cards off the working truck onto our truck we get Alarm 62 (10) logic:battery error. Yet these 2 cards work fine on the working truck when we put it back on.

We changed all the controllers, main logic card and the display along with the steer controller. Yet we still get Alarm 62 (10) logic battery.

Also tested truck battery and jumped off another truck battery. Also tested voltage drop accross main contact and switching 49.8v. So truck battery is ok

Can anyone shed some light on this fault please?

Regards