The answer to 'how to fix humidifier' is to first identify the issue with your humidifier. Common problems include mineral buildup, leaks, or a malfunctioning motor. Start by unplugging the unit and inspecting it for any visible issues. Clean the humidifier according to the manufacturer's instructions, which often involves descaling, disinfecting, and replacing any worn parts.
If the humidifier is still not working properly after cleaning, you may need to replace the water panel, filter, or other internal components. Refer to the owner's manual for guidance on maintenance and troubleshooting. If you are unable to resolve the issue, it's best to call in a professional HVAC technician to diagnose and repair the humidifier.