Why is my refrigerator not cooling after I have cleaned the condenser?

Something has probably been pushed into the fan blade on the motor that cools the compressor. Roll the refrigerator out and remove the back panel. Look at the fan blade and see what is stuck in it. Most of the time it is a big dust ball or papers that have got sucked under the refrigerator. Just remove, reinstall back, and in a couple of hour the refrigerator will cool down again once the fan removes the extra heat.