How can I fix this hole?
Have you tried unplugging it and plugging it back in¿
Commenting to follow/learn how to fix holes myself.
Flex seal tape
Is that in metal?
If that’s as small as I think, I’d probably just epoxy it and ask the person that did the damage to sign their name nearby.
The most reasonable answer would probably be to go down to your local hardware store and pick yourself up some Dicor or Geocel and just epoxy it.
Dealership would probably take it in to build you a quote in 2-3 days. Then they would call on the 3rd day and say they just got to it, but it wouldn’t be inspected until the following day. Then, on day 5, they would send you a quote saying to replace the entire panel.
I would say try to bend it back best as possible and weld it. But doing that would probably catch the insulation on fire and burn the trailer down unless you removed the panel for the work.
Tapes are a temporary solution but work great in a situation that requires a rapid response for repair.
Silly Putty?
Source: Fix hole
