Kitchenaid KSCS251 from 2004 suddenly stopped cooling/freezing all interior lights work.

SOURCE: Amana French Door Refrigerator "on" but no cooling; freezer still works

There are 2 possible problems. One is the defrost cycle is not working properly this is usually indicated by a large amount of frost on the back freezer panel. If so, the circuit will have to be repaired and the evaperator thawed to remove the ice build up. The other is the fresh food damper is not working properly this is behind the "lump" in the back of the fridge compartment above the top shelf, remove the louver panel to see if it is open or closed. closed will be warm open should be cold. The water dispenser reservoir is probably frozen due to poor air circulation.

SOURCE: Kenmore refrigerator not cooling or freezing

my refrigerator suddenly stop cooling all the fans run normal. It makes a click Noyce.

SOURCE: Sears Kenmore 53652300, doesn't cool

This usually indicates that the compressor is working too hard and drawing too much current. The click that you hear is a safety shut-off. Possible causes of this are numerous and usually require having a professional come in to fix the issue, it can range anywhere from a faulty compressor to a bad start relay.

There is in most cases a temporary fix, it is called a hard start relay/capacitor. It is usually available from an appliance parts retailer for around $15 to $20. Installation instructions are included, just be sure to unplug your refrigerator first and make sure that someone following you can repair from where you left off. This relay assembly can normally get you up and running but it should not be used as a permanent fix. This will not correct for a refrigerant leak in the system.

Check your refrigerator owners manual before making any repairs or modifications to your refrigerator, there may be an extended warranty on the sealed system and compressor.

SOURCE: Magic Chef refrigerator stop cooling

check the fan relay and the compressor to make sure it is still working...if not there is a capasiter you can replace to get it to work again

SOURCE: Refrigerator Compressor does not start

Is your freezer below your frig, like a drawer. If so does it still freeze the food. if this fact is true, then listen with the freezer drawer open to hear if the freezer fan is running. If it is running and your freezer is working then it could possibly be that fan that is the problem. This fan circulates the chilled air from the evaporator coil thru the freezer and the refrigerator. This problem is very hard to diagnose as the fan still spins but not fast enough to circulate the chilled air thru the freezer and frig. The minimum cost is around $300.00 if a service company does it. But if you can do it then you can possibly get the fan motor for around $80.00. This repair is very labor intensive as the access to the electrical connection is at the extreme rear of the freezer compartment.