I've had to disassemble a multicooker (this one, specifically) because I noticed a lot of condensation in the display/contol unit.

As I was doing so, I saw that the inside of the casing is covered in lichtenberg burn marks.

I haven't had an problem with the cooker, but I'd like to know if this is normal and reasonably safe.

  • 1
    are you sure they are burn marks ? Take a picture and post them. Condensation in the control area - not sealed very well if at all. Any air in there after sealing - will have moisture in it.
    – Ken
    Commented Sep 15, 2017 at 18:14
  • It isn't really sealed at all, there's only a hard plastic casing in that area; I saw that other parts had stains and a grain of rice in there. I'm quite sure that they're burn marks. I think there was a transparent film of gunk over the plastic which was burned in that pattern, unfortunately I wiped it off and have reassembled it to avoid parts loss.
    – curly
    Commented Sep 15, 2017 at 19:47

1 Answer 1


Those types of burn marks are an indication of electric current being where it should not be and should definitely not be considered normal or safe. You should discontinue use of that appliance unless inspected and repaired at a manufacturer recommended repair shop.

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