The four oxygen atoms in a phosphate i â¦ on therefore have a total electric charge of -8, and the phosphorus atom must have an oxidation number of +5 to result in a net charge of -3 for the whole ion.
Remove the front lower panel on the refrigerator with a screwdriver and set the panel aside. Disconnect the wire connectors from the capacitor and terminal that are connected to the compressor, using your hand. Lift the compressor out of the bin and set it aside.
If there is nothing in the fan, unplug the refrigerator then unplug the fan motor. Then plug the refrigerator back in and if the noise is gone the fan is bad and needs replacing. If the noise doesnât go away then the compressor is bad (provided that the defrost timer is not back there and I donât see that very often).