Unfortunately no such damage is not covered by warranty, since it's akin to a wiring fault.
However, we may be able to offer a refurbished unit on exchange at reduced cost. Please contact firstname.lastname@example.org to inquire about availability. Include a link to this thread.
Thanks a lot for the support, troubleshooting/preventive hints and the suggestion with a refurbished unit!
And thanks a lot for your guy’s effort and contribution to this community of additivist enthusiasts!