If you had a power surge, then an incoming electric current found earth ground destructively via that keypad. Or now via some other part. To say what might be damaged means first learning what was the incoming electric path. And what was also the outgoing path to earth.

No protector does protection. Protection is always about connecting a surge to earth BEFORE it can enter the building. That is why a 'whole house' protector is do effective. And why protectors adjacent to appliances do little to nothing.

So, it is not the 'whole house' protector that should have most of your attention. Focus mostly on what actually does the protection - single point earth ground.

Meanwhile, what is damaged would have been in a path that connected a cloud to earth. Potential outgoing paths include water pipes and even the kitchen floor.