Freeze-up protection or high-pressure control — Ice formation or pressure issue

What does Freeze-up protection or high-pressure control mean?

This message indicates that the unit has activated a protection mode. This could be due to ice forming on the indoor coil or excessively high pressure within the system.

• Low refrigerant charge
• Blocked airflow (dirty filters, blocked vents)
• Outdoor unit fan issue
• Extreme ambient temperatures

Click steps to track your progress.

1. 1

   Ensure air filters are clean and unobstructed.

2. 2

   Check that all air vents are open and not blocked by furniture or curtains.

3. 3

   Verify the outdoor unit's fan is operating correctly when the system is on.

4. 4

   If the issue continues, contact a qualified installer or dealer.