Instruction Manual

Product Overview

This Hihitomorrow 1006800/1 Control Circuit Board Module is a single-stage replacement part designed for Nortek Nordyne E7 Series Electric Furnaces. It is engineered to provide reliable control for your furnace system.

Key features include:

• Compatible with Nordyne E7EB, E7ED, E7EM, E7EU series electric furnace models.
• Functions as a 1-stage replacement printed circuit board for E7 series electric furnaces with FSHE ECM, fixed torque air handlers, and analog indicator.
• Aids in troubleshooting furnace issues.
• Replaces OEM part numbers 1006801R and 1006800/1.
• Constructed from high-quality PCB board and components, treated for high-temperature resistance and anti-corrosion.

Compatibility

This control circuit board is compatible with the following Nortek Nordyne E7 Series Electric Furnaces:

• E7EB Series: E7EB-010, E7EB-012, E7EB-015, E7EB-017, E7EB-020, E7EB-023 H & H1 models.
• E7ED Series: E7ED-010, E7ED-012, E7ED-015, E7ED-017, E7ED-020, E7ED-023 H & H1 models.
• E7EM Series: E7EM-010, E7EM-012, E7EM-015, E7EM-017, E7EM-020, E7EM-023 H & H1 models.
• E7EU Series: E7EU-010, E7EU-012, E7EU-015, E7EU-017, E7EU-020, E7EU-023 H & H1 models.

Image: Visual representation of compatible Nordyne E7 series furnace models and the control board.

Installation and Setup

Important Safety Information: Before attempting any installation or replacement, ensure the power supply to the furnace is completely disconnected at the circuit breaker. Failure to do so can result in serious injury or death.

1. Power Disconnection: Locate the circuit breaker for your furnace and switch it to the "OFF" position. Verify power is off using a voltage tester.
2. Access the Control Board: Open the furnace access panel to locate the existing control board. Refer to your furnace's specific manual for exact location.
3. Document Connections: Before disconnecting any wires, take clear photos of all wire connections to the old control board. Label wires if necessary to ensure correct re-connection.
4. Remove Old Board: Carefully disconnect all wires and mounting screws securing the old control board.
5. Install New Board: Position the new Hihitomorrow 1006800/1 control board in the same location as the old one. Secure it with the appropriate mounting hardware.
6. Reconnect Wires: Using your documented photos and labels, carefully reconnect all wires to the corresponding terminals on the new control board. Ensure all connections are secure.
7. Close Access Panel: Once all connections are verified, close and secure the furnace access panel.
8. Restore Power: Return to the circuit breaker and switch the power supply to the furnace back to the "ON" position.
9. Test Operation: Initiate a heating cycle to confirm the furnace and new control board are functioning correctly.

Image: Illustration of a furnace's internal components, highlighting the control board's position.

Image: Detailed view of the control circuit board, showing its layout and connection points.

Operation and Diagnostic Codes

The 1006800/1 control board features an analog indicator (7-segment display) to provide diagnostic codes, aiding in troubleshooting and identifying operational states. This improved circuit board offers clearer fault detection compared to older models.

Image: The control board highlighting the diagnostic display and a table explaining various display codes.

Display Codes and Current Modes:

Maintenance

The Hihitomorrow 1006800/1 control board is designed for durability and requires minimal maintenance. However, periodic inspection can help ensure its longevity and proper function:

• Visual Inspection: Annually, or during routine furnace maintenance, visually inspect the board for any signs of damage, such as burn marks, swollen capacitors, or loose connections.
• Cleaning: If dust accumulation is observed, gently clean the board using compressed air. Do not use liquids or abrasive cleaners. Ensure power is disconnected before cleaning.
• Connection Check: Verify that all wire connections to the board are secure and free from corrosion.

If any issues are detected during maintenance, refer to the Troubleshooting section or contact a qualified HVAC technician.

Troubleshooting

The control board's diagnostic display provides codes to help identify potential issues. Refer to the "Operation and Diagnostic Codes" table above for a detailed explanation of each code. If a fault code appears, follow these general troubleshooting steps:

1. Identify the Code: Note the display code shown on the control board.
2. Consult Code Table: Refer to the table in the "Operation and Diagnostic Codes" section to understand the meaning of the code.
3. Power Cycle (for temporary issues): For some transient errors, turning off the furnace power at the circuit breaker for 30 seconds and then turning it back on may clear the fault.
4. Inspect Related Components: Based on the diagnostic code, inspect the associated components. For example, if an "Over Temperature" code (t) appears, check for blocked airflow, dirty filters, or a malfunctioning fan. If a "Motor Fault" code (I) appears, inspect the blower motor.
5. Check Connections: Ensure all electrical connections to the control board and related components are secure and free from corrosion.
6. Professional Assistance: If the issue persists or you are unsure about the diagnosis, it is recommended to contact a qualified HVAC technician for further assistance. Do not attempt repairs beyond your technical capabilities.

Specifications

Image: Physical dimensions of the control circuit board.

Warranty and Support

Warranty: This Hihitomorrow control circuit board comes with a 1-Year Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.

Customer Support: For any questions regarding installation, troubleshooting, or warranty claims, please contact Hihitomorrow customer support. Refer to the product packaging or the seller's information for contact details.

Note: Unauthorized modifications or improper installation may void the product warranty.