We need to manually unplug it for defrosting once a month, otherwise it generates touching grinding sounds. Also, the heater is open/burned. The defrost sensor fuse is not resettable—if the defrost sensor fuse blows, you must replace the defrost sensor. The bimetal test good and only have about 30 volts AC at the heater terminals. Enter model number to search for the required part specific to your product. But the problem is still there. The thermostat is wired in series with the defrost heater, and when the thermostat opens, the heater shuts off. Required Part. A defrost heater is connected by two wires, and the wires are connected with slip-on connectors. This GE refrigerator (GDS18LCRAWW, Serial# LG902660V) has problem in defrosting. If the defrost heater does not have continuity, replace it.

This is our guess. SHOP PARTS. Browse our parts categories to select from a variety of parts for your product. Please note that a continuity test will not work on defrost heater because the ohm value is too high to register on a continuity test. To determine if the defrost sensor or fuse is defective, use a multimeter to test both the sensor and fuse for continuity. You may need a pair of needle-nosed pliers to help you.
Do not pull on the wires themselves. To test the defrost heater you’ll need to use a @multimeter to do an ohm test. Please help Thanks, Gabe If the defrost sensor fuse blows, the defrost system will not work, and the refrigerator will not defrost. It appears that the circulation fan got accumulated ice and created the noisy sound. Before you can test the defrost heater you’ll need to unplug the refrigerator freezer and disconnect the wires going to the defrost heater. To determine if the defrost heater is defective, use a multimeter to test it for continuity. Firmly grasp these connectors and pull them off the terminals. You will have to remove any objects that are in your way such as the contents of the freezer, freezer shelves, icemaker parts, and the inside rear, back, or bottom panel. If you have a side-by-side refrigerator, the defrost thermostat is found at the back of the freezer side. I have replaced the timer first and then defrost thermostat.

Simon, I have the same problem but with a GE GSS201EMD side by side refrigerator. Refrigerator Defrost Heater Assembly. Read More. Before you can test your defrost heater, you have to remove it from your refrigerator.