Samsung rs21dabb the water disencer as stopped working and there is ice behind the salad draws in the fridge?

SOURCE: SAMSUNG SIDE BY SIDE FRIDGE FREEZER

these appliances are a pain in the butt. fault with water dispensor is oprob that the water bottle at bottom of fridge is frozen. rise in temp is prob that defrost not taking place. not a diy unless you are experienced

SOURCE: Refrigerator freezing up and fan catching

From your information Bill it seems the defrost system has failed. There are several componants that could cause this. First check the defrost heater which is located on the evaporator. You will need to pull the plug and let the ice melt completely first. Store your perishables elsewhere.

With an ohmmeter, check for continuity across the defrost heater. With all due respect, if this is confusing you need to call a service tech. If you have continuity across the heater, check the defrost thermostat which is a round disc fastened to the evaporator.

Finally, look for the defrost relay. It should be found somewhere on the lower rear of the refrigerator. Check for power to the relay, and on the outlet side. A wiring diagram located on the back of the unit will help you find the correct wires. All of these parts should be available from your local refrigerator parts supply, or check with Samsung online to order. Be advised Bill that this is not a simple repair, but if you have some electrical understanding, you can do it.

Ray

SOURCE: water leak in back of fridge for 2 days. All else works fine

It sounds like the fridge water supply line is leaking. Pull the fridge out and have a look. May just need tightening.

SOURCE: Samsung SR S2028CSS Fridge Freezer - Fridge temperature problems

Try setting it to lower temperature. If that don't work the thermostat is bad.

SOURCE: why does my bosch frost free fridge freezer keep icing up

look for a leak in the door seal, sounds to me like there is air getting in.