Hi all experts,

I have Pramac QX20 S2, Seri: PL10015457 Year: 2007

The truck no run, technical said speed controller broken. Replaced 2 sets from TVH (Curtis p/n:1243-4224), The truck still no run.

First one is fault code 1-3 (M- shorted). the second controller gives fault 3-1 (field shorted)

Checked motor specs, wiring is normal

Pls advise me how to solve this ?

Thanks