An error code 13 indicates a malfunction with the optional CO alarm device.
Please follow these troubleshooting steps after ensuring proper ventilation at the installation site:
- Verify that all vent components are securely and fully connected.
- Inspect vent pipes for any exhaust leaks.
- Check for any disconnected CO alarm wires.
- Confirm that the optional CO alarm device is functioning correctly.
For further technical assistance call 866-766-7489 or use our Contractor Locator to find a local service representative.