Refrigerators are usually equipped with resistors. These allow you to defrost your appliance when it produces too much cold, because ice can form on the walls inside.
The defrost heater resistance can be damaged over time and no longer work properly. For example, it may be responsible for the following failures:
● The refrigerator produces or leaks water.
● The appliance produces ice.
● The fridge smells bad, is damp.
The defrost heater tube resistor is usually located at the rear of the unit, behind the cavity. To access it, you will have to remove it.
Fridge defrost heater
The defrost heater tube in your refrigerator or fridge is an integral part of its operation. This device prevents frost buildup in your freezer by regularly defrosting the evaporator coils. However, if the defrost heater is not functioning correctly, your fridge can become too frosty, preventing proper cooling. In such instances, it may be necessary to replace the defrost heater tube.
Here is a step-by-step guide on how to replace the defrost heater in a refrigerator.
Tools you will need:
● - Replacement defrost heater tube
● – Screwdriver
● - Sleeve
● - Multimeter (optional, for testing purposes)
Before beginning the process, ensure that you have obtained the correct replacement defrost heater element that is compatible with your specific refrigerator model. For this information, please refer to your refrigerator’s user manual or contact the manufacturer’s customer service department.
fridge refrigerator defrost heater
Step 1: Unplug the Fridge
Before you begin to replace your defrost heater, make sure unplug your refrigerator from the power source。 The easiest way to do this is to unplug the unit from the wall. This is a critical safety step when working with any electrical appliances.
Step 2: Access the Defrost Heater
Locate your defrost heater. It can be located behind the back panel of the freezer section of your refrigerator, or under the floor of your refrigerator’s freezer section. Defrost heaters are commonly located beneath a refrigerator’s evaporator coils. 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.
The panel you need to remove may be held in place with either retainer clips or screws. Remove the screws or use a screwdriver to release the clips holding the panel in place. Some older refrigerators may require that you remove a plastic molding before you can gain access to the freezer floor. Exercise caution when removing the molding, as it does break fairly easily. You could try warming it with a warm, wet towel first.
Step 3: Locate and Remove the Defrost Heater
With the panel removed, you should see the evaporator coils and the defrost heater. The heater is typically a long, tube-like component running along the bottom of the coils.
Before you can test your defrost heater, you have to remove it from your refrigerator. To remove it, you’ll first need to disconnect the wires connected to it. They usually have a plug or a slip-on connector. Once disconnected, remove the brackets or clips that hold the defrost heater in place, then carefully remove the heater.
fridge refrigerator defrost heater
Step 4: Install the New Defrost Heater Position
The new defrost heater in the same place as the old one and secure it with the brackets or clips you removed earlier. After it’s securely in place, reconnect the wires to the heater. Ensure they are firmly attached.
Step 5: Replace the Back Panel and Restore Power
After the new heater is installed and the wires are connected, you can replace the back panel of the freezer. Secure it with the screws you removed earlier. Replace any shelves or drawers you had removed, then plug your refrigerator back into the power source.
Step 6: Monitor the Fridge
Allow some time for your refrigerator to reach its optimal temperature. Monitor it closely to make sure it is cooling properly and that there’s no frost buildup. If you notice any issues, it might be necessary to call a professional.
Replacing the defrost heater in a refrigerator is a relatively straightforward process that can save you from potential food spoilage and more severe fridge issues.If you’re unsure about any step in the process, don’t hesitate to seek professional help.
Post time: Mar-01-2025