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Error Code
The F4 error code indicates a refrigerant pressure issue, often caused by either high or low refrigerant levels or a malfunctioning pressure sensor.
Insufficient refrigerant can cause low pressure, triggering this error.
Dirt or debris buildup can obstruct the refrigerant flow.
Malfunctioning pressure sensors may cause incorrect readings, leading to the error.
Ensure refrigerant levels are adequate.
Clean the coils and filters to ensure proper airflow and refrigerant flow.
Have a technician inspect and replace the faulty pressure sensors.
