What is the make and model number of the refrigerator?
Does the light turn on in the compartments when you open the door?
Does the evaporator fan stop when you open the door?
The reason for all the questions is that the "beep" will only happen if the control board knows that a door is open.
If the answer to the 2nd and 3rd questions above are Yes then it may be simply a problem with the speaker (usually a piezo speaker) that emits the beep or the control board is not generating the beep for some reason.
If the answer to the questions is No then it may be a faulty door switch.
@anju Pokharel
What is the make and model number of the refrigerator?
Does the light turn on in the compartments when you open the door?
Does the evaporator fan stop when you open the door?
The reason for all the questions is that the "beep" will only happen if the control board knows that a door is open.
If the answer to the 2nd and 3rd questions above are Yes then it may be simply a problem with the speaker (usually a piezo speaker) that emits the beep or the control board is not generating the beep for some reason.
If the answer to the questions is No then it may be a faulty door switch.