Malfunctioning solar panels are blamed for a three-alarm response to a Michael's Distribution Center in Winslow Township on Sunday.
The panels sustained the majority of the damage while the roof had minor, officials told WPVI.
The interior came away unscathed in the blaze that firefighters took about an hour to extinguish.
![Dunstable 4-Alarm Fire Audio 12/16/2024 [Massachusetts]](https://img.firehouse.com/files/base/cygnus/fhc/image/2024/12/6762da9b72a82976e5752e1d-maxresdefault.png?auto=format,compress&fit=crop&q=45&h=139&height=139&w=250&width=250 "Dunstable 4-Alarm Fire Audio 12/16/2024 [Massachusetts]")
