The answer to 'why is my humidifier not cooling' is that the humidifier may not be working properly or may need maintenance. Common issues include a broken or malfunctioning cooling mechanism, mineral buildup, or airflow problems. Symptoms can include lack of cooling, warm or room-temperature air output, and high humidity levels that don't decrease.
To troubleshoot, first check the humidifier's cooling mechanism and clean any mineral deposits. Ensure proper airflow by replacing filters and checking for blockages. If the issues persist, the humidifier may need professional repair or replacement.