My Refrig./freezer stopped cooling. I cleaned the coils which were VERY dirty. The fan in the back of the refrig. is running, the compressor is warm to touch, it makes a clicking sound at intervals, the air blowing inside the freezer is not cold, the compressor is not does feel like it is vibrating to touch, can not tell if the running sound is coming from the fan or the compressor. Any suggestions as to what this may be and how long should it take the refrig. to cool back down after cleaning the coils if that was my only problem which is not likely.