Keeps beeping as outlined below?

I have a Samsung cool n cool fridge freezer. It keeps making this annoying beeping noise and it's sometimes intermittant then sometimes the beeps are going at quick succession. This has been going on for months and I've tried turning down the temperature, setting it to super and it still hasn't cured it. I have the manual and there is no mention of this type of issue. Any ideas and I would expect free feedback if possible not will I pay X Y Z as this is a fault but I can never get through to helpdesks as I've tried in the past. Thank you. Karen