Irrigation Controller Blown Up in Thunderstorm: Lightning Strike Confirmed

During thunderstorm, garage panel blew up. System was off. Returned to find zone 1 running. Panel back scorched. Fuse replaced 2 days prior. Bad fuse or lightning?

Definitive Answer

Matt: "Thats a lightning strike. The scorched back tells it. You will need to replace the controller. You should contact your homeowners insurance to see if they will cover it. I would also check the other electric appliances for damage."

Scorching + spontaneous zone activation = induced surge on field wiring. Insurance claim warranted; check all connected equipment.