Surge Guard had no effect on whether or not that lightning strike caused damage to your RV Electronics
Not what it is designed for...nor can it take the Million+ Voltage from lightning strike
IF the lightning strike had cause High Voltage Spike the Surge Guard would have been sacrificed
**The transformer that was struck took the hit,,,not your Surge Guard
Also never have seen/read anything about Years.....
Per TRC (Surge Guard--Southwind)
[I]How do I know my surge protection still works?
The surge protection does not usually fail unless there is a direct lightning strike.
If this happens, there would likely be other obvious damage; otherwise, the surge protection should last indefinitely.[/I]
I am not a fan of Surge Guard
Units are not serviceable
When damaged they are throw-aways
I WAS a fan of Progressive Industries Surge Protectors
Life Time Warranty......which got changed to Limited Lifetime a few years ago
***Fortunately I haven't ever had a warranty issue with my PI Unit
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31