An Overloaded refrigerator is one of the most probable cases in which the refrigerator is unable to make ice in the freezer section or unable to create cooling inside, Appliance Medic Has suggested several reasons for the refrigerator not cooling fast but a few highly probable reasons from them are as follows:
https://www.ocsdirectory.com/blog/top-5-highly-probable-reasons-for-refrigerator-not-cooling-fast