Introduction
This manual provides essential information for the safe and proper installation, operation, and maintenance of your IHP Lennox Gas Stove Ignition Control Module, part number H4674. This module is an original equipment manufacturer (OEM) replacement part designed for specific Lennox gas stoves, fireplaces, and inserts. Please read this manual thoroughly before attempting any installation or service.
Important Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, consult a qualified installer, service agency, or the gas supplier.
- Always disconnect power to the appliance before servicing.
- Gas appliances should only be serviced by qualified professionals.
- Ensure all gas connections are properly sealed and tested for leaks after installation.
- Do not bypass any safety devices.
- Keep the area around the appliance clear and free from combustible materials.
Product Overview
The H4674 Ignition Control Module is a critical component in your gas stove's ignition system. It is responsible for controlling the gas valve and igniter to ensure safe and reliable ignition of the burner. This module is designed to meet the exact specifications of original Lennox parts, ensuring compatibility and performance.
Figure 1: IHP Lennox Gas Stove Ignition Control Module H4674. This image shows the compact black module with various connection points for wiring.
Compatibility
This module is compatible with the following Lennox gas models. Always verify the part number in your appliance's owner's manual before ordering.
- Elite Gas Fireplaces: ELDV35NE, ELDV40NE, ELDV45NE, E36ODGNE, E36ODGNE-H, E36ODGPE, E36ODGPE-H, E42ODGNE, E42ODGNE-H, E42ODGPE, E42ODGPE-H
- Merit Gas Fireplaces: MLDVTCD-35NE, MLDVTCD-35PE
- Superior Gas Fireplaces: SLBV-35NE, SLBV-40NE, SLDVT-30NE, SLDVT-30PE, SLDVT-35NE, SLDVT-40NE, SLDVT-40PE, SLDVT-45NE
Setup and Installation
Installation of this ignition control module should only be performed by a qualified service technician. Incorrect installation can lead to gas leaks, fire, or carbon monoxide poisoning. Refer to your appliance's specific service manual for detailed installation instructions.
General Installation Steps (for qualified technicians only):
- Safety First: Turn off the gas supply to the appliance and disconnect all electrical power.
- Access Module: Locate and access the existing ignition control module within the appliance. This may require removing panels or other components.
- Disconnect Wiring: Carefully label and disconnect all wires connected to the old module. Take photos if necessary for reference.
- Remove Old Module: Unmount the old module from its position.
- Install New Module: Mount the new H4674 module in the same location and orientation as the old one.
- Connect Wiring: Reconnect all wires to the new module according to your labels or photos. Ensure all connections are secure.
- Restore Power and Gas: Restore electrical power and turn on the gas supply to the appliance.
- Test Operation: Follow the appliance's service manual procedures to test the ignition system and ensure proper operation and leak-free gas connections.
Operating Instructions
The H4674 Ignition Control Module operates automatically as part of your gas appliance's control system. Once installed and the appliance is powered on, the module will manage the ignition sequence when a call for heat is initiated.
- When the thermostat or control system calls for heat, the ignition control module sends a signal to the igniter.
- The igniter creates a spark or heats up to ignite the gas.
- Simultaneously, the module opens the gas valve to allow gas flow to the burner.
- A flame sensor confirms the presence of a flame. If a flame is not detected within a specified time, the module will shut off the gas supply for safety.
- Once the flame is established, the module continues to monitor it and maintains gas flow until the call for heat ends.
Refer to your specific Lennox appliance's owner's manual for detailed operating instructions for your gas stove, fireplace, or insert.
Maintenance
The H4674 Ignition Control Module itself typically does not require routine user maintenance. Its function is primarily electronic. However, regular maintenance of the overall gas appliance is crucial for its longevity and safe operation.
General Appliance Maintenance Recommendations:
- Annual Inspection: Have your gas appliance inspected and serviced annually by a qualified technician. This includes checking the igniter, flame sensor, gas pressure, and overall system integrity.
- Cleanliness: Keep the area around the appliance clean and free of dust, debris, and obstructions.
- Ventilation: Ensure proper ventilation for the appliance as specified in its owner's manual.
- Carbon Monoxide Detector: Install and regularly test carbon monoxide detectors in your home.
If you suspect an issue with the ignition control module, contact a qualified service technician for diagnosis and replacement.
Troubleshooting
This section provides general troubleshooting tips for issues that might be related to the ignition system. For detailed diagnostics, always consult a qualified technician and your appliance's service manual.
| Problem | Possible Cause | Action (for qualified technicians) |
|---|---|---|
| Burner does not ignite | No power to module, faulty igniter, no gas supply, faulty flame sensor, faulty module. | Check power supply, verify gas valve operation, inspect igniter and flame sensor for damage or dirt, test module for proper voltage output. |
| Burner ignites then immediately shuts off | Faulty flame sensor, poor flame signal, incorrect gas pressure. | Clean or replace flame sensor, check flame signal strength, verify gas pressure. |
| Intermittent ignition | Loose wiring connections, intermittent power supply, failing module. | Inspect all wiring connections, check for stable power, test module. |
Always consult a professional for diagnosis and repair of gas appliances. Do not attempt repairs if you are not qualified.
Specifications
| Feature | Detail |
|---|---|
| Part Number | H4674 |
| Brand | IHP (Innovative Hearth Products) |
| Compatibility | Lennox Gas Stoves, Fireplaces, and Inserts (specific models listed in Product Overview) |
| Item Weight | 3 Pounds |
| Color | Black |
| Burner Type | Radiant (as per product specifications, though this refers to the stove, not the module itself) |
| UPC | 793611681019 |
Warranty Information
As an OEM replacement part, warranty coverage for the H4674 Ignition Control Module is typically provided by the original manufacturer (IHP/Lennox) or the seller at the time of purchase. The product listing indicates "No Returns Accepted" for this item, which may imply specific warranty terms or conditions.
It is recommended to retain your purchase receipt and consult the original documentation provided with your appliance or contact the seller directly for specific warranty details applicable to your purchase.
Customer Support
For technical assistance, installation questions, or troubleshooting beyond the scope of this manual, please contact a qualified HVAC or gas appliance technician. For inquiries regarding your purchase or warranty, please refer to the seller from whom you purchased the IHP Lennox Gas Stove Ignition Control Module H4674.
You may also visit the official IHP (Innovative Hearth Products) website for general product information or to locate authorized service providers.
