Harmonics and circuit boards

Halo

I would like to know can harmonics cause circuit boards to blow?

Thank you

Much more detail is needed for any realistic answer, but consider:

Third harmonics, (often generated by anything with switching power supply circuits), can create disproportionally large neutral currents on multi phase systems. 

High frequencies superimposed on a supply can overload any capacitive element, such as filter capacitors.

Complex electronic circuits may develop resonance with stray high frequency harmonics, causing destructive currents.