Glad you fixed it so quickly.
If your breaker panel is inside a closet with no room for air to cool the panel there are a couple of suggestions in really hot weather.
If your breaker panel is installed in a closet and above the water heater it really gets a double whammy.
My EMS board went up in flames. Fortunately it self extinguished. My panel runs cool to the touch these days after a couple of simple mods.
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008