The answer to 'dehumidifier blowing cold air' is that a dehumidifier blowing cold air is often a sign of a refrigerant leak or other mechanical issue. This can be caused by low refrigerant levels, a problem with the compressor, or a blockage in the airflow. If the dehumidifier is blowing cold air, it may not be effectively removing moisture from the air as intended.
In some cases, this issue can be resolved with a simple DIY repair, such as cleaning the air filters or checking the refrigerant levels. However, if the problem persists or you're not comfortable troubleshooting the issue, it's best to call a professional HVAC technician to diagnose and repair the dehumidifier. They can identify the underlying cause and make the necessary repairs to restore proper operation.