Introduction
This manual provides essential instructions for the safe and correct installation, operation, and maintenance of the Norcold 639593 Rear Power Supply Board. This board is a replacement component designed for Norcold Polar N7, N8, and N10 series RV refrigerators. Please read this manual thoroughly before proceeding with installation.
Safety Information
- Disconnect Power: Always ensure the refrigerator and the RV's main power supply are completely disconnected before attempting any installation or maintenance. Failure to do so can result in electric shock or damage to the unit.
- Qualified Personnel: Installation should ideally be performed by a qualified technician. If performing self-installation, ensure you have a clear understanding of electrical systems and safety procedures.
- Proper Tools: Use appropriate tools for the task, including insulated tools where necessary.
- Component Handling: Handle the circuit board by its edges to avoid damaging sensitive electronic components due to static discharge or physical contact.
- Ventilation: Ensure adequate ventilation in the work area.
Product Overview
The Norcold 639593 Rear Power Supply Board is a critical component responsible for managing the power distribution and control functions of compatible Norcold RV refrigerators. It is designed as a direct replacement for the original board in Polar N7, N8, and N10 models, addressing common issues such as power failures or error codes.
Image 1: Norcold 639593 Rear Power Supply Board. This image displays the circuit board with various connectors and electronic components.
Installation Instructions
- Prepare for Installation:
- Ensure the RV's main power supply is turned off and the refrigerator is disconnected from all power sources (AC and DC).
- Access the rear of the refrigerator where the power supply board is located. This may require removing an exterior access panel.
- Take clear photographs of the existing board and all wire connections before disconnecting anything. This will serve as a reference during reassembly.
- Label wires if necessary to ensure correct re-connection.
- Remove the Old Board:
- Carefully disconnect all wires and connectors from the old power supply board. Note their positions.
- Locate and remove the screws securing the old board. A 1/4-inch ratchet with a 3-4 inch extender may be required for access.
- Gently remove the old board from its mounting.
- Install the New Board:
- Position the new Norcold 639593 board in the same location as the old one.
- Secure the new board with the mounting screws. Do not overtighten.
- Reconnect all wires and connectors to their corresponding terminals on the new board, using your photographs and labels as a guide. Ensure all connections are firm and secure.
- Verify Connections: Double-check all wire connections to ensure they are correctly seated and match your reference photos.
- Restore Power: Once all connections are verified, restore power to the refrigerator and the RV's main power supply.
Operating Verification
After successful installation of the Norcold 639593 Rear Power Supply Board, verify the refrigerator's operation:
- Turn on the refrigerator and observe its startup sequence.
- Confirm that the refrigerator powers on correctly and the display (if applicable) functions as expected.
- Test both AC and DC (if applicable) power modes to ensure the board properly manages power sources.
- Allow the refrigerator to run for a period to confirm it reaches and maintains the desired temperature.
- Check for any error codes or unusual behavior.
Maintenance
The Norcold 639593 Rear Power Supply Board is designed for long-term reliability and generally requires minimal maintenance. However, periodic checks can help ensure optimal performance:
- Visual Inspection: Annually, or during other refrigerator maintenance, visually inspect the board and its connections for any signs of corrosion, loose wires, or physical damage.
- Cleanliness: Ensure the area around the board is free from dust, debris, and moisture. Use a soft, dry brush or compressed air to gently clean the board if necessary, ensuring power is disconnected first.
- Ventilation: Confirm that the refrigerator's rear access panel and ventilation openings are clear and unobstructed to prevent overheating of components.
Troubleshooting
If your Norcold refrigerator experiences issues after installing the 639593 Rear Power Supply Board, consider the following troubleshooting steps:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Refrigerator does not power on. | Loose power connection, no power to RV, faulty fuse. |
|
| Refrigerator displays "10 red flashing lights" error code. | This error code often indicates a fault with the power supply board or its related components. |
|
| Refrigerator not cooling properly. | Incorrect wiring, issue with heating element, fan, or other components. |
|
If troubleshooting steps do not resolve the issue, it is recommended to contact Norcold customer support or a certified RV technician for further assistance.
Specifications
- Model: Norcold 639593
- Compatibility: Norcold Polar N7, N8, N10 Series RV Refrigerators
- Product Dimensions: Approximately 27.31 x 16.51 x 8.89 cm (10.75 x 6.5 x 3.5 inches)
- Item Weight: Approximately 422 g (0.93 lbs)
- Manufacturer: Norcold
Warranty and Support
For information regarding the warranty of your Norcold 639593 Rear Power Supply Board, please refer to the warranty documentation provided with your original Norcold refrigerator or contact Norcold customer service directly. For technical support or service inquiries, please visit the official Norcold website or contact their customer support line.
Norcold Official Website: www.norcold.com