That’s the question. When cooking and then pouring the water into the sink, for 10 seconds the lights on the counter turn on. These lights are usually broken and refuse to turn on manually. The lights are a strip of little LED bulbs glued on the cupboard .
i have a theory but i am not an electrician
EDIT : case solved by GIGACHAD (that’s his nickname)
The number one rule of all electronics is thou shall check ground. Sounds like a grounding issue somewhere.
You should still check ground, but if it’s repeatable with hot water and not cold water, it’s probably because of the heat. To remove water from the equation, you can probably use a heat lamp.