Too much technical terms for an idiot layman like me. Not sure if this is still LYN or what.

Anyway;

1. Check grounding first (cost +/- RM500)
2. Solve your grounding issue if any. (Don’t know the cost)
3. Install SPD if the grounding is OK for secondary protection. (cost +/- RM500)

That’s all my brain could take.
Hopefully this is correct.