My last Centurion gate motor. Never again.

I have never had as many issues with a gate motor as I do with my Centurion D5Evo. It is constantly playing up despite being fitted by an expert. I even fitted a surge protector to remove that as an excuse for causing a fault due to loadshedding and still the PC board has issues. I have had to take the board in for replacement and/or repair five times on a brand new motor. LIke clockwork every six months the motor stops working. Each time a different component on the PC board is blamed. These motors by definition stand outside in the weather, why all the issues?