Is it related to the cold weather that the induction cooker does not heat up?

This has little to do with the weather.

One possible reason why the induction cooker does not heat up is external. It may be because the temperature in the pot is too high, and then the pot automatically starts to prevent high temperature. Another possibility is internal reasons. In this case, we can cut off his power supply first, and then see if his power board is burnt out. If not, we can restart it later. If it still doesn't work well after starting, we can ask special maintenance personnel to check it at home.