Introduction
This manual provides essential information for the installation, operation, and maintenance of the ERP 242044020 Refrigerator Defrost Heater. This component is designed to replace original defrost heaters in compatible refrigerator models, ensuring proper defrosting cycles and efficient appliance operation.
Safety Information
Adhere to the following safety guidelines to prevent injury or damage:
- Always disconnect power to the refrigerator by unplugging it or turning off the circuit breaker before attempting any installation, repair, or maintenance. Failure to do so can result in electric shock or serious injury.
- Wear appropriate personal protective equipment, such as gloves and eye protection, during installation.
- If you are unsure about any step, consult a qualified appliance technician.
- This part should only be installed by individuals with experience in appliance repair.
- Ensure all electrical connections are secure and properly insulated after installation.
Product Overview
The ERP 242044020 is an electric defrost heater designed for use in refrigerators. It is a direct replacement for part number 242044008 and is compatible with various Frigidaire models, as well as other models that use part numbers AP4567873 and PS3408665. The defrost heater prevents ice buildup on the evaporator coils, which is crucial for the refrigerator's cooling efficiency.

Image 1: The ERP 242044020 Refrigerator Defrost Heater, showing its U-shaped heating element and electrical connectors at each end.

Image 2: A slightly different angle of the ERP 242044020 Defrost Heater, highlighting the overall shape and the distinct orange and white electrical connectors.

Image 3: Close-up view of the orange electrical connector, which is part of the defrost heater assembly. This connector ensures a secure electrical connection.

Image 4: Close-up view of the white electrical connector, another key component of the defrost heater. This connector also facilitates a reliable electrical connection within the refrigerator system.
Installation
Installing a refrigerator defrost heater requires careful attention to detail and adherence to safety procedures. Always refer to your specific refrigerator's service manual for detailed disassembly and reassembly instructions.
- Disconnect Power: Unplug the refrigerator from the wall outlet or turn off the circuit breaker supplying power to the appliance.
- Access Evaporator Cover: Locate and remove the freezer compartment's rear panel or evaporator cover. This typically involves removing screws and possibly some trim pieces.
- Locate Old Defrost Heater: The defrost heater is usually located at the bottom of the evaporator coils. It may be secured with clips or screws.
- Disconnect Wiring: Carefully disconnect the electrical connectors of the old defrost heater. Note their positions for reinstallation.
- Remove Old Heater: Unclip or unscrew the old defrost heater and remove it from the refrigerator.
- Install New Heater: Position the new ERP 242044020 defrost heater in the same location as the old one. Secure it with the existing clips or screws.
- Connect Wiring: Connect the electrical connectors of the new heater. Ensure they are firmly seated.
- Replace Evaporator Cover: Reinstall the evaporator cover and any other panels or trim removed earlier.
- Restore Power: Plug the refrigerator back into the wall outlet or turn on the circuit breaker.
- Test Operation: Monitor the refrigerator for proper operation, including the defrost cycle.
Operation
The defrost heater operates automatically as part of the refrigerator's defrost cycle. When the refrigerator's control board determines that a defrost cycle is needed, it activates the heater. The heater warms the evaporator coils, melting any accumulated ice. The melted water then drains through a tube to a drain pan, where it evaporates. This process is essential for maintaining the refrigerator's cooling efficiency and preventing excessive ice buildup.
Maintenance
The ERP 242044020 defrost heater is designed for long-term, maintenance-free operation. Regular maintenance of the refrigerator itself, such as keeping the condenser coils clean and ensuring proper door seals, can help optimize the overall performance and longevity of all components, including the defrost system. If you suspect a problem with the defrost heater, refer to the troubleshooting section.
Troubleshooting
If your refrigerator is experiencing issues related to defrosting, the defrost heater may be a contributing factor.
Common Symptoms of a Faulty Defrost Heater:
- Excessive Ice Buildup in Freezer: If there is a significant amount of ice on the evaporator coils (behind the back panel of the freezer), the defrost heater may not be activating or may be faulty.
- Refrigerator Not Cooling: Heavy ice buildup can restrict airflow over the evaporator coils, leading to poor cooling in both the freezer and fresh food compartments.
- Water Leaks: If the defrost heater is not working, ice may build up and then melt irregularly, potentially causing water to overflow the drain pan or leak into the refrigerator compartment.
Diagnostic Steps:
- Disconnect Power: Always disconnect power before inspection.
- Visual Inspection: After accessing the evaporator area, visually inspect the defrost heater for any signs of damage, such as breaks or corrosion.
- Continuity Test: Using a multimeter, test the continuity of the defrost heater. A lack of continuity indicates an open circuit and a faulty heater that needs replacement.
- Check Other Components: Ensure the defrost thermostat and defrost timer/control board are also functioning correctly, as they work in conjunction with the heater.
If the defrost heater is confirmed to be faulty, replace it with the ERP 242044020.
Specifications
| Feature | Detail |
|---|---|
| Brand | ERP |
| Part Number | 242044020 |
| Model Number | ER242044020 |
| Item Weight | 3.2 ounces |
| Package Dimensions | 18.8 x 8.1 x 0.4 inches |
| Included Components | Defrost Heater |
| Installation Method | Built-In |
| Defrost System | Electric |
| Replaces Part Numbers | 242044008, AP4567873, PS3408665 |
Warranty Information
All ERP products come with a one-year warranty. For specific details regarding warranty claims or support, please refer to the official ERP website or contact their customer service. Keep your proof of purchase for warranty validation.
Support and Contact
For further assistance, technical support, or inquiries regarding the ERP 242044020 Refrigerator Defrost Heater, please visit the official ERP website or contact their customer support department.
Note: Always refer to your specific refrigerator's service manual for detailed disassembly and reassembly instructions.





