F01
Toshiba
Indoor Coil Freeze Protection Activated
Unit displays F01; often associated with indoor unit freeze protection activation.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Very low indoor airflow, Extremely dirty filters and coil, Low refrigerant charge, Indoor fan not running
How to Fix / Troubleshooting
Safety first: Turn off power before cleaning or inspecting internal parts.
- Step 1 – Clean filters: Remove and wash filters thoroughly. Dry and reinstall.
- Step 2 – Inspect coil for ice: If ice is present on the evaporator, leave the unit off until all ice melts. Place towels to catch water.
- Step 3 – Clean coil: Use a coil cleaner or soft brush to remove dust from the evaporator fins.
- Step 4 – Check fan operation: Restore power and ensure the indoor fan runs at all speeds. If not, troubleshoot the fan motor and PCB.
- Step 5 – Professional refrigerant check: If airflow is good but F01 recurs, a technician should check for refrigerant leaks and correct charge.
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Repair Difficulty
Medium
3/5
Required Part
Indoor Fan Motor Assembly
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