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Error Code
The E1 error code indicates a high-pressure protection issue in your Fujitsu air conditioning unit. This error usually means that the system has detected abnormal pressure levels in the refrigerant lines.
Blockages in the coils can cause pressure to build up in the system.
Low refrigerant can disrupt pressure readings.
The pressure sensors may be malfunctioning or providing incorrect readings.
Clean the coils to ensure proper airflow and prevent blockages.
Ensure the refrigerant levels are adequate and top up if necessary.
Have a technician check the pressure sensors to ensure they are functioning properly.
