The answer to 'humidifier not working' is that there are several common causes, including a faulty humidifier, mineral buildup, or issues with the water supply. Symptoms may include no moisture output, leaks, or the humidifier running constantly without increasing humidity. Solutions can range from simple DIY cleaning and maintenance to replacement of the entire unit, depending on the underlying issue.
If the humidifier is not producing any moisture or you notice strange noises, check the water line for clogs or leaks. Mineral buildup in the unit can also prevent proper operation. Try cleaning the humidifier components according to the manufacturer's instructions. If the issue persists or you're unsure of the cause, it's best to call in a professional HVAC technician to diagnose and repair the problem.