I have an RS21DCNS Side by Side Fridge Freezer. The Motor at the back of the fridge has started to whine. the motor stops as soon as the fridge door is opened. The noise seems to coming from the air cleaning unit, do these give trouble, is the motor bearing wearing out where can i get parts for one? thanks Alan..
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Probably the condenser fan motor is going out they will often make noise for a long time before anyone notices. Get it looked at soon. overheating the compressor on that old of a fridge could spell trouble.
This is caused by the ice building up in at the back - the fan catches the ice and eventually will stop. With the fan malfunctioning the temperature will rise and the light then flashes. Keep searching the web, and you will find instructions how to remove the back and de-ice it. I had exactly the same problem 2 months ago. Make sure that it is fully de-iced, including the tray at the bottom. Ours has worked OK since!
If you have frozen coil at the back of the freezer section, then the defrost thermostat is usually failing. Allow the fridge to defrost completely overnight. If the fridge restarts cooling immediately after defrost, then the problem was the defrost system. In that case the fridge will stop cooling again in a couple of days, as soon as the evaporator coils restart freezing and the condenser goes under stress with the whole cooling system loosing efficiency.
The problem is a buildup of ice on the plastic housing (the curved plastic bit) in the back of the freezer under the fixed shelf where the icetub goes. The fan behind this plastic housing is hitting the ice when the defrost comes on.
Unplug the fridge, unpack the freezer, remove the four screws in the back, take off the sheetmetal backing and let the fridge thaw. You can remove the plastic piece after a while and get the ice off (be careful not to remove the styrofoam insulation by going too quickly).
Reassemble and you're back in business, for a few months. I'm never buying Samsung again myself.
Sounds like the freezer fan is rubbing some wires or possible some foam insulation around the fan. I would look into the freezer compartment fan and go from there. The fan Will Shut off when you open the doors. Let me know how you make out and if you need anymore help.
You are probably correct that it is the evap motor. If you are seeing frost on the back wall then there is probably some ice built up around the motor and the fan blade is hitting it. Try defrosting the freezer and look very closely all around the seal for the freezer drawer. It is common for moisture to freeze in the self closers in the drawer rails and not let the drawer close completely on one side or the other. If this happens the small gap will allow the freezer to frost excessively. Sorrry to be slow in responding. I have been very busy this week and have not been on line very much. Mike
Spray a good quantity of WD-40 on the spindle of the fan motor where it enters the motor itself. This should get the fan working smoothly with no noise. This will probably solve the other problems, as the fan prevents various components from overheating and shutting down.