1. Product Overview
The Dexen GM6KNPTD is an OEM CSA Certified control module designed for electronic ignition systems in compatible fireplaces, gas logs, and other hearth systems. This module supports both AC and DC power inputs, offering versatile installation options. It serves as a direct replacement for older Dexen models GM6K (Yellow Label) and GM6KA (White Label).

Image 1.1: Top view of the Dexen GM6KNPTD Control Module, showing the white information label.
Key features include:
- OEM Direct Replacement: Specifically engineered to replace previous Dexen GM6K and GM6KA models.
- CSA Certified: Undergoes rigorous safety testing by the Canadian Standards Association, ensuring compliance with stringent safety standards for gas leaks, explosions, and fire risks.
- Dual AC/DC Voltage: Compatible with both 3 VAC and 3 VDC power inputs for flexible integration.
- Electronic Ignition: Facilitates reliable and efficient ignition for hearth appliances.
2. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
This control module is CSA certified, indicating it has been tested and meets applicable safety standards. However, adherence to local codes and regulations is paramount. Always ensure the gas supply is turned off before performing any installation or service.

Image 2.1: Example of a CSA Group Certificate of Compliance, signifying product safety and quality.
For your safety, it is recommended that installation and service be performed by a qualified service agency or gas installer.
3. Installation and Setup
Before beginning installation, ensure you have all necessary tools and that the gas and electrical supplies to the appliance are disconnected.
3.1. Pre-Installation Checks
- Verify that the GM6KNPTD module is compatible with your specific fireplace or hearth system model. Refer to your appliance's manual or part diagram.
- Confirm that the power supply (AC or DC) matches the module's requirements (3 VAC or 3 VDC).
3.2. Replacing an Existing Module
- Turn off the gas supply and disconnect all electrical power to the appliance.
- Carefully disconnect all wires from the old control module, noting their positions for correct re-connection. It is advisable to take a photograph of the existing wiring.
- Remove the old module from its mounting location.
- Mount the new Dexen GM6KNPTD module in the same location.
- Connect the wires to the new module according to the wiring diagram provided in your appliance's manual or the diagram below. Ensure all connections are secure.

Image 3.1: Typical wiring diagram for the GM6KNPTD control module. Consult your appliance's specific manual for exact wiring.
3.3. Wiring Connections
The GM6KNPTD module features clearly labeled terminals for connections. Refer to the module's label and your appliance's manual for specific wiring details. Common connections include:
- GND (Black): Ground connection.
- PILOT (Orange): Connects to the pilot assembly.
- MAIN (Green): Connects to the main burner valve.
- SWITCH (Brown): Connects to the appliance's control switch (e.g., wall switch, remote receiver).
- BATTERY (+/-): For DC power input or battery backup.

Image 3.2: Close-up view of the GM6KNPTD module showing wiring terminals and label.
3.4. Post-Installation
- Once all connections are made, slowly turn on the gas supply.
- Restore electrical power to the appliance.
- Check all gas connections for leaks using a soap solution. Do not use an open flame.
- Test the appliance for proper operation.
4. Operating Instructions
The Dexen GM6KNPTD control module manages the ignition sequence of your fireplace or hearth system. Its operation is typically integrated with the appliance's main control system (e.g., wall switch, remote control, thermostat).
4.1. Normal Operation Sequence
- When the appliance is called to ignite (e.g., by turning on a switch or setting a thermostat), the control module receives a signal.
- The module initiates the pilot ignition sequence, sending power to the igniter and opening the pilot gas valve.
- Once the pilot flame is established and sensed by the module, the main burner gas valve opens, allowing the main burner to ignite from the pilot flame.
- The module continuously monitors the flame presence during operation.
- When the call for heat ends, the module closes the main and pilot gas valves, extinguishing the flames.
4.2. Power Options
The GM6KNPTD module can be powered by either 3 VAC or 3 VDC. This flexibility allows for integration into various systems, including those with battery backup options.

Image 4.1: An example of a compatible battery backup pack for Dexen control modules.
5. Maintenance
The Dexen GM6KNPTD control module is designed for reliable, long-term operation with minimal maintenance. However, periodic checks of the overall hearth system are recommended.
5.1. General Maintenance Tips
- Annual Inspection: Have your fireplace or hearth system, including the control module and wiring, inspected annually by a qualified service technician.
- Cleanliness: Ensure the area around the module is free from dust, debris, and moisture.
- Wiring Integrity: Periodically check all wiring connections for tightness and signs of wear or damage.
- Battery Replacement (if applicable): If using a battery backup, replace batteries annually or as recommended by the battery manufacturer.
CAUTION: Always disconnect power and gas supply before performing any maintenance or inspection.
6. Troubleshooting
This section provides guidance for common issues. For complex problems, contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| No ignition/No spark | No power to module Loose wiring connections Faulty igniter/pilot assembly Module failure | Check power supply (AC adapter or batteries). Inspect all wiring for secure connections. Inspect igniter and pilot for damage or blockage. Consult a technician for module testing/replacement. |
| Pilot lights, but main burner does not ignite | Pilot flame not strong enough to heat sensor Main burner gas valve issue Module not sensing pilot flame | Clean pilot assembly. Adjust pilot flame if possible. Verify main burner gas valve is receiving signal. Ensure flame sensor is clean and properly positioned. |
| Intermittent operation | Loose connections Low battery power Drafts affecting pilot flame | Check all wiring connections. Replace batteries if applicable. Check for proper venting and seal around appliance. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | GM6KNPTD |
| Input Voltage (AC) | 3 VAC, 200 mA, 50/60 Hz |
| Input Voltage (DC) | 3 VDC, 200 mA |
| Certification | CSA Certified |
| Replaces Models | GM6K (Yellow Label), GM6KA (White Label) |
| Dimensions | Approx. 8 x 5 x 2 inches (Package Dimensions) |
| Weight | Approx. 1 pound (Item Weight) |
8. Product Highlight Video
Video 8.1: A highlight video showcasing the Dexen Control Module. This video provides a visual overview of the product's features and design.
9. Warranty Information
Dexen products are manufactured to high-quality standards. Specific warranty details are typically provided with the product packaging or can be obtained from the point of purchase. Please retain your proof of purchase for warranty claims.
10. Technical Support
For technical assistance, installation questions, or troubleshooting beyond the scope of this manual, please contact Dexen's USA-based technical support. Contact information can typically be found on the product packaging or the official Dexen website.
When contacting support, please have your product model number (GM6KNPTD) and any relevant appliance information readily available.

