The answer to 'water softener frozen' is that a frozen water softener is a common issue that can occur during cold weather. This happens when the water inside the softener tank or pipes freezes, preventing the system from functioning properly.
Some common causes include lack of insulation, low water flow, and prolonged exposure to freezing temperatures. Symptoms may include reduced or no water flow, unusual noises, or the softener not regenerating. Solutions can include wrapping the tank in insulation, increasing water flow, or relocating the softener to a warmer area. If the issue persists, it's best to call a professional plumber to diagnose and repair the problem.