Broke the condensor fan blade and replaced it.

Unplug the refrigerator. Move things to gain access to the bottom back of the refrigerator. Take care in movement of refrigerator not to kink or loosen the ice maker water supply line. Use nut driver (best), screw driver, or socket to take off 6 screws holding the cardboard cover (air access for the fan). Remove the old fan blade with fingers and light pressure with a screw driver, it will snap right off. The new blade comes with a ringed compression fitting so you need not buy the new one that is shown on the schematic diagram. Push the new blade on the fan shaft far enough to allow the shaft to protrude from the front side of the new blade-that is what holds it in place and you should feel a little snap when it is inserted far enough. Caution: Do not vacuum around the blade or try to reinstall the cardboard cover while the fan is running. I broke two of them while doing just that, they are very brittle. Recover with cardboard and you're done!