Why Does My Dehumidifier Ice Up?

Why does the dehumidifier ice up?

If your dehumidifier is icing up, it typically indicates an issue with the unit that needs attention. Here are a few common reasons why a dehumidifier may ice up:

1. Low Temperature: Dehumidifiers are generally designed to operate within specific temperature ranges. If the ambient temperature is too low, usually below 65 degrees Fahrenheit (18 degrees Celsius), the coils of the dehumidifier can become too cold and cause condensation to freeze, resulting in ice buildup.

2. Dirty Coils or Filters: Accumulated dirt, dust, or debris on the coils or filters of the dehumidifier can disrupt the airflow and heat transfer, causing the coils to become excessively cold. This can lead to ice formation.

3. Overcooling: If the industrial air dehumidifier is set to a very low humidity level or if it is running continuously, it may excessively cool the coils, leading to ice formation.

4. Refrigerant Issues: A refrigerant leak or improper refrigerant charge can affect the cooling process of the dehumidifier. This can cause the coils to become too cold, leading to ice formation.

5. Malfunctioning Defrost System: Some dehumidifiers are equipped with a defrost system that automatically melts ice buildup on the coils. If the defrost system is not functioning properly, the ice may continue to accumulate and cause issues.

 Preair is a famous industrial dehumidifier manufacturer that can provide good-quality and cost-effective industrial use dehumidifiers. If you want to bulk buy reliable industrial dehumidifiers, contact Preair befor you make a final decision.

How to address the icing issue?

1. Turn off the heavy duty dehumidifier for basement and unplug it from the power source.

2. Allow the unit to thaw naturally. Do not attempt to manually remove the ice, as this can potentially damage the coils.

3. Check and clean the coils and filters of the compact crawl space dehumidifier, following the manufacturer's instructions. Remove any dirt, dust, or debris that may be obstructing proper airflow.

4. Ensure that the ambient temperature is within the recommended operating range for the dehumidifier.

5. Verify that the defrost system, if present, is functioning correctly. Consult the user manual or contact the manufacturer for guidance.

If the icing issue persists or if you suspect a refrigerant leak or other technical problems, it's advisable to contact the manufacturer's customer support or seek professional assistance from a qualified HVAC technician to diagnose and repair the dehumidifier.