The answer to why your sump pump is frozen is that the pump has likely become frozen due to extremely cold temperatures. Sump pumps are designed to pump out excess water from your basement or crawl space, but when temperatures drop below freezing, the water in the pump can freeze, preventing it from working properly.
Some common symptoms of a frozen sump pump include the pump not turning on, the pump making strange noises, or water backing up in your basement. If your sump pump is frozen, it's important to address the issue quickly to prevent water damage to your home.