Description
the unit features a manual override capability
Common Questions: How do I confirm if the 100111904 is the right board for my boiler
) against your original wiring
Moisture Resistance: Integrated watertight fittings prevent thermistor drift caused by humidity or condensation within the housing
5-inch leads with 200°C rated insulation provide ample length and thermal protection for tight burner vestibules
Viessmann 7861491 Flame Sensor 318423-701 the unit features a manualWhen you're troubleshooting a Viessmann Vitodens unit that keeps hitting an F2 flame loss or L2 ignition lockout, your first check should be the Viessmann 7861491 Flame Sensor. Also known as an ionization electrode, this nickel iron (NiFe) component is the backbone of the flame rectification circuit. Its engineered specifically for CM2 series boilers, including models like the CM20490, CM20491, and CM20493. This isn't just a dummy rod; its a precision
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy