Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Emerson 767A-372 Hot Surface Ignitor. Please read this manual thoroughly before attempting any installation or service.
Important Safety Information
WARNING: Risk of electric shock and fire. Installation and servicing must be performed by a qualified service technician.
- Always disconnect power to the appliance before installing or servicing the ignitor.
- Do not touch the ignitor element with bare hands. Oils from skin can damage the silicon carbide material and shorten its lifespan.
- Handle the ignitor with extreme care. The silicon carbide element is fragile and can break easily if dropped or mishandled.
- Ensure all wiring connections are secure and correct according to the appliance manufacturer's specifications.
- Verify the ignitor voltage (120V) matches the appliance requirements.
Product Overview
The Emerson 767A-372 is a 120V hot surface ignitor designed for reliable ignition in various heating appliances. It features a durable silicon carbide element and a Molex side lock connection for secure wiring.
This image displays the Emerson 767A-372 Hot Surface Ignitor. It features a light-colored ceramic base, two dark grey silicon carbide heating elements, and white insulated wires leading to a white Molex side lock connector.
Key Features:
- Silicon carbide construction for high reliability.
- 5.25" lead length for flexible installation.
- 200 Degree insulation for heat resistance.
- Molex side lock connection with .092" male pins for secure electrical contact.
- 120V operating voltage.
Installation Instructions
Follow these steps carefully to install the ignitor. Refer to your appliance's service manual for specific instructions and diagrams.
- Power Disconnection: Turn off all electrical power to the heating appliance at the main service panel. Confirm power is off using a voltage meter.
- Access Ignitor: Locate and carefully open the access panel to the burner assembly where the ignitor is situated.
- Remove Old Ignitor: Disconnect the wiring harness from the old ignitor. Carefully unmount the old ignitor from its bracket. Note its orientation for correct replacement.
- Inspect Mounting: Inspect the mounting bracket for any damage or corrosion. Clean if necessary.
- Install New Ignitor: Gently mount the new Emerson 767A-372 ignitor onto the bracket, ensuring it is securely fastened and correctly positioned. Avoid touching the silicon carbide element.
- Connect Wiring: Connect the Molex side lock connector of the new ignitor to the appliance's wiring harness. Ensure a firm connection.
- Secure Access Panel: Close and secure the access panel to the burner assembly.
- Restore Power: Restore electrical power to the heating appliance.
- Test Operation: Initiate a heating cycle to verify proper operation of the ignitor and the appliance. Observe for proper ignition.
Operation
The Emerson 767A-372 Hot Surface Ignitor operates automatically as part of your heating appliance's ignition sequence. When a call for heat is initiated:
- The control board sends power to the ignitor.
- The silicon carbide element heats rapidly to a high temperature, becoming incandescent.
- Once the ignitor reaches the appropriate temperature, the gas valve opens, allowing gas to flow.
- The hot surface ignitor ignites the gas.
- After successful ignition, the ignitor typically de-energizes, and the flame sensor confirms the presence of a flame.
No user intervention is required for the ignitor's operation once correctly installed.
Maintenance
Regular maintenance of your heating appliance is crucial for its longevity and efficiency. While the ignitor itself requires minimal direct maintenance, periodic inspection is recommended.
- Annual Inspection: During your annual furnace or boiler service, have a qualified technician inspect the ignitor for signs of wear, cracks, or discoloration.
- Cleaning: Do not attempt to clean the ignitor element with abrasive materials or chemicals. If dust or debris accumulates, a gentle brush or compressed air (with power disconnected) may be used, but extreme care must be taken not to touch or damage the element.
- Replacement: Ignitors have a finite lifespan. If the ignitor shows signs of degradation or fails to ignite consistently, it should be replaced by a qualified technician.
Troubleshooting
If your heating appliance is not igniting, the ignitor may be a potential cause. Always consult a qualified technician for diagnosis and repair.
| Symptom | Possible Cause | Action |
|---|---|---|
| Ignitor does not glow. | No power to ignitor, faulty ignitor, or control board issue. | Verify power supply. Check wiring connections. Test ignitor for continuity (by a qualified technician). Inspect control board. |
| Ignitor glows but gas does not ignite. | Insufficient glow temperature, gas supply issue, or faulty gas valve. | Check gas supply. Inspect ignitor for cracks or damage. Consult technician to test gas valve and ignitor temperature. |
| Ignitor glows, gas ignites, but then extinguishes. | Faulty flame sensor, dirty burner, or flue blockage. | Clean or replace flame sensor. Inspect burner and flue for obstructions. |
| Ignitor element is visibly cracked or broken. | Physical damage or end of lifespan. | Replace the ignitor. |
Note: Always ensure power is disconnected before inspecting any internal components.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 767A-372 |
| Brand | Emerson (White-Rodgers) |
| Voltage | 120 Volts |
| Material | Silicon Carbide (Element), Metal (Housing) |
| Lead Length | 5.25 inches |
| Insulation | 200 Degree |
| Connector Type | Molex Side Lock with .092" male pins |
| Product Dimensions (L x W x H) | 3 x 3 x 6 inches |
| Item Weight | 2.89 ounces |
| UPC | 786710508288 |
Warranty Information
This Emerson 767A-372 Hot Surface Ignitor comes with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service. It does not cover damage resulting from improper installation, misuse, abuse, accident, or unauthorized repairs. For warranty claims, please retain your proof of purchase and contact Emerson customer support.
Customer Support
For technical assistance, replacement parts, or warranty inquiries, please contact Emerson customer support. You may also visit the official Emerson website for additional resources and contact information.
Website: www.emerson.com
Note: Specific contact details may vary by region. Refer to the packaging or official website for the most current support information.
