We have a Roper by Whirlpool RT21LMXKQ freezer on top. Friday night it started clicking and the compressor would come on but only run for a millisecond before it cut off. Satruday morning we left if off for 3-4 hours and we plugged it back in after cleaning all areas we could reach (we also had taken off the back panel and the compressor was too hot to touch!) We plugged it back in at noon on Saturday and it has run fine until this morning (Monday) now the clicking is happening again and the compressor comes on runs for a second (a little longer than it did Friday Night) and then immediatley cuts off again. It is still fairly cold inside as we are keeping the door shut but we do not know how to diagnose the problem??? We are going to clean the front stuff with one of those long soft brushes in a minute but I think a switch is what is causing this? The cooling fan still runs even when the compressor cuts off and the ice still forms and drops and the fridge is still pretty cool???? HELP!!! This fridge was just purchased in 2006 I think it hsould last longer than four years???