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We don't understand what you exactly mean. If it means a eror code, please find below the error codes and its solutions.
Er FS - Freezer Sensor Error Er rS - Refrigerator Sensor Error Er ds - Defrost Sensor Error Er dH - Defrost Heater Error Er CF - Cooling Motor Error Er CO - Communications Error
Er-Ff- Freezer fan fault. Write again if you're not satisfied with this answer.Thanks.
If thats a flashing E 7 that is related to the optics or laser.
There normally is a second code if you press 0 it will then mean E 7-1 to Check if the lamp is comming on.
Extremely dirty optics would give you a set up code E 7.
The Laser could be defective.
The main board may have gone bad.
I would start by cleaning all of the optice thoroughly. Including the white strip on the bottom side of the glass.
Look for an open filiment section in the lamp, if it is not comming on.
If not one those 2 simple issues, then you most likely have a main board or laser failure.