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Error Code
The E5 error code refers to a low refrigerant issue in your Hitachi air conditioning unit. This occurs when the refrigerant pressure drops below normal operating levels, preventing proper cooling or heating.
A drop in refrigerant can trigger low pressure, causing the E3 error.
Leaks can result in refrigerant loss, which will cause pressure to drop.
Obstructions in the refrigerant lines can cause low pressure.
Have a technician inspect and top up the refrigerant if it’s low.
Look for signs of refrigerant leaks and have them repaired.
Ensure that there are no blockages in the refrigerant lines.
