How to Test the Circuits and Voltage of the Kenmore Coldspot Ice Maker

Open the freezer side of the refrigerator to slide off the plastic cap on the end of the Coldspot, which is mounted to the upper left wall.

Set the multimeter to test for voltage. Holding the two prongs on the end of the device by the insulated ends, insert the two metal tips on the prongs into the holes marked "H" and "T" on the end of the Coldspot. Read the multimeter, which should register 110 volts. Some fluctuation in the reading is normal. No reading or an irregular reading indicates a wiring problem, including a short circuit. If the unit gives a normal voltage reading, continue with the next test.

Remove the multimeter prongs from the Coldspot.

Unplug the refrigerator power cord. Shut off the water supply to the ice maker by twisting the knob in the water line to the right until it's tight. If the knob is not on the line behind the refrigerator, look under the sink.

Pull out the ice bucket under the Coldspot.

Take out the screws on the support lip underneath the Coldspot. Lift upward and pull forward on the unit gently.

Disconnect the plug behind the Coldspot on the end of the wires where the plug attaches to the freezer wall.

Set the multimeter to test for ohms. Place the two prongs on the two metal posts inside the plug on the end of the wires on the back of the Coldspot. A zero or infinite display on the meter means the unit has a broken circuit, such as a burned-out wire.