Trust me I'm an engineer? But always happy to have HN debug my fridge, so here we go: turns out the light bulb, when replaced, keeps overheating and even metled

Trust me I'm an engineer? But always happy to have HN debug my fridge, so here we go: turns out the light bulb, when replaced, keeps overheating and even metled the surrounding casing. Some electrical issue I'd have to take the fridge apart to debug. I might be unfair with this one though, it's a 20 year old fridge and is probably serviceable.