LENNOX Ignition Control Board: Mfr Part # 21W14
SKU 3G-OTH-105669
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Frequently Asked Questions
What is a Lennox 21W14 ignition control board used for?
The Lennox 21W14 ignition control board manages the ignition sequence in compatible Lennox gas furnaces and HVAC systems. It controls spark or hot-surface ignition, monitors flame presence, and ensures safe burner operation. This replacement part is essential for restoring heating function when the original board fails.
What are the specifications of the Lennox 21W14 ignition control board?
The Lennox 21W14 is an ignition control board with manufacturer part number 21W14. It is designed as a direct replacement for specific Lennox furnace models. Key specifications include its product type as an ignition control board. For exact compatibility, verify your existing board's part number and furnace model.
Where to buy a Lennox 21W14 ignition control board worldwide?
3G Electric supplies the Lennox 21W14 ignition control board to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this replacement HVACR control component.
How to install a Lennox 21W14 ignition control board?
Before installing the Lennox 21W14, disconnect all power to the furnace. Remove the old board, noting wire connections and mounting orientation. Install the new board, reconnect wires per the furnace wiring diagram, and restore power. Test the ignition sequence. Always follow the manufacturer's instructions and local codes.
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Common applications for LENNOXLENNOX Products
3G Electric supplies LENNOX replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
