The answer to 'drain trap frozen' is that a frozen drain trap is a common issue during cold winter months. This happens when the water in the trap freezes, preventing water from flowing properly and potentially causing backups or leaks. Common causes include inadequate insulation, drafts, or the trap being located in an unheated area of the home.
Symptoms of a frozen drain trap include slow or no water drainage, gurgling sounds, or water backing up in the sink or tub. To address this, you can try pouring hot water down the drain, using a hair dryer to thaw the trap, or insulating the exposed pipes. However, if the issue persists or you're unable to safely thaw the trap, it's best to call a professional plumber who can properly diagnose and fix the problem.