Caution: Conduct this test with the refrigerator unplugged. Test the control module heater for resistance using a multitester. Set the multitester to the ohms setting X1. Place one probe into the hole labeled "H" and the other probe into the hole labeled "L". The multitester should read in the range of 60 to 90 ohms.
If the heater does not pass this test, replace the ice mold heater.