The answer to 'smoke detector hot to touch' is that a smoke detector that is hot to the touch is usually a sign of an electrical issue or fire hazard. This could be caused by a malfunctioning detector, a short circuit, or a wiring problem in the home's electrical system. The detector may be overheating and could potentially start a fire if not addressed promptly.
If your smoke detector is hot, it's important to investigate the cause immediately. Try to determine if the detector itself is malfunctioning or if there's an issue with the wiring or electrical supply. If you're not comfortable troubleshooting the problem yourself, it's best to call a licensed electrician to diagnose and resolve the issue safely.