Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your ICP Furnace Control Circuit Board, model 1085928 (CECOMINOD040111). This control board serves as the central processing unit for your furnace, managing various functions to ensure proper heating system operation. Please read this manual thoroughly before proceeding with any installation or service.
Figure 1: Official OEM stamp indicating the product is an original equipment manufacturer component for ICP/Carrier systems.
Safety Information
WARNING: Electrical Shock Hazard. Disconnect power before servicing.
- Always disconnect all electrical power to the furnace unit before installing, servicing, or removing the control board. Failure to do so can result in severe personal injury or death.
- Installation and servicing should only be performed by a qualified HVAC technician.
- Wear appropriate personal protective equipment (PPE), including safety glasses and insulated gloves.
- Ensure all wiring connections are secure and conform to local and national electrical codes.
- Do not bypass any safety devices.
Package Contents
Verify that all items are present and undamaged:
- 1 x ICP Furnace Control Circuit Board (Model 1085928 / CECOMINOD040111)
- (Optional) Installation Guide (if included separately)
Installation Instructions
Follow these steps carefully to replace your furnace control board. It is highly recommended to photograph the existing wiring configuration before disconnection.
- Disconnect Power: Turn off all electrical power to the furnace at the main service panel. Verify power is off using a voltage tester.
- Access Control Board: Locate and open the furnace access panel to expose the existing control board.
- Document Wiring: Before disconnecting any wires, take clear photographs of the existing control board and all connected wires. Pay close attention to the color and terminal designation of each wire. This will serve as a crucial reference during reinstallation.
- Disconnect Wires: Carefully disconnect all wires from the old control board. Note the location of any fuses or jumpers.
- Remove Old Board: Unmount the old control board from its housing.
- Install New Board: Mount the new ICP Furnace Control Circuit Board (Model 1085928) in the same location as the old board. Ensure it is securely fastened.
- Connect Wires: Refer to your photographs and the labels on the new board. Connect each wire to its corresponding terminal on the new control board. Important: Some terminal labels (e.g., 'COM', '240') may be in different physical locations on the new board compared to the old one. Always follow the labels on the new board.
- Verify Connections: Double-check all wiring connections for accuracy and tightness. Ensure no loose wires are present.
- Replace Fuses/Jumpers: If applicable, transfer any fuses or jumpers from the old board to the new one, ensuring they are correctly positioned according to the new board's markings.
- Close Access Panel: Securely close the furnace access panel.
- Restore Power: Restore electrical power to the furnace at the main service panel.
- Test Operation: Initiate a heating cycle to verify proper furnace operation.
Figure 2: Top view of the ICP Furnace Control Circuit Board 1085928, showing various terminals, relays, and components.
Figure 3: Angled view of the control board, highlighting the terminal blocks and relays for wiring connections.
Operation
The ICP Furnace Control Circuit Board operates automatically in conjunction with your thermostat and other furnace components. Once correctly installed, the board will manage the ignition sequence, blower motor operation, and safety functions of your furnace based on the thermostat's demand for heat.
- Ensure your thermostat is set to the desired temperature and mode (Heat/Auto).
- The control board will initiate the heating cycle, including pre-purge, ignition, main burner operation, and post-purge, as required.
- Monitor your furnace for normal operation after installation.
Maintenance
The control board itself requires minimal direct maintenance. However, regular maintenance of the overall furnace system is crucial for its longevity and proper function.
- Annual Furnace Inspection: Have a qualified HVAC technician inspect your furnace annually. This includes checking electrical connections, cleaning components, and verifying safety controls.
- Air Filter Replacement: Regularly replace or clean your furnace air filter as recommended by your furnace manufacturer. A dirty filter can restrict airflow, leading to overheating and potential stress on the control board.
- Keep Area Clear: Ensure the area around the furnace is clear of obstructions and combustible materials.
Troubleshooting
If your furnace is not operating correctly after installing the new control board, consider the following common issues:
| Problem | Possible Cause | Solution |
|---|---|---|
| Furnace does not start or no power. | No power to the furnace; tripped circuit breaker; blown fuse on control board; loose wiring connection. | Check circuit breaker; replace blown fuse (ensure correct amperage); verify all wiring connections are secure. |
| Blower motor runs continuously. | Thermostat fan setting incorrect; faulty thermostat; issue with control board fan relay. | Check thermostat fan setting (should be 'Auto'); consult an HVAC technician if the issue persists. |
| Furnace cycles on and off rapidly (short cycling). | Dirty air filter; restricted airflow; faulty high-limit switch; incorrect thermostat settings. | Replace air filter; ensure vents are open; consult an HVAC technician. |
| No heat, but blower runs. | Ignition problem (e.g., faulty ignitor, flame sensor); gas supply issue. | Consult an HVAC technician for diagnosis and repair. |
Many control boards have diagnostic LED lights that flash codes to indicate specific errors. Refer to your furnace's specific diagnostic code chart for detailed interpretations.
Specifications
- Model Number: CECOMINOD040111 (OEM Upgraded Replacement for ICP 1085928)
- Product Dimensions: 8 x 6 x 10 inches
- Item Weight: 7 ounces
- Manufacturer: ICP
- Compatibility: Designed as an OEM upgraded replacement for specific ICP furnace models using board 1085928. Verify compatibility with your furnace model before installation.
Warranty and Support
For specific warranty information regarding this replacement part, please refer to the documentation provided by your point of purchase or contact the seller directly. Technical support should be sought from a qualified HVAC professional for installation and troubleshooting.
For general inquiries or to locate a qualified service technician, please refer to the official ICP website or your local HVAC service provider.
