Do Pumptec Plus units have any history of catching on fire?

I have one and it caught on fire today. I only run my pump for 6 months out of the year (I use city supplied water for the spring and summer months). When I turned the lever today to turn the water on from my well, the Pumptec Plus unit was in flames within about 15 seconds.

I called my Well Water plumber and he said that he's never seen such a thing but did say that my well pump has a ground fault. The only thing he could come up with is that I had a lightening hit that damaged both units.

Any thoughts?