Lennox 18G9101 Ignition Control Board / Ignitor Module – Tested Working

This is a used but fully tested ignition control board for your HVAC system.

It's a Lennox 18G9101 (also known as SP735L), and it's compatible with both Lennox and Armstrong furnaces.

Here's the good part: it's not just pulled from a random unit.

It was tested before removal from a fully-functioning system, so you know it works.

And to back that up, the seller offers tech support with every purchase, which is huge if you're a DIYer.

If your furnace isn't lighting and you've traced the problem to the ignition module, this is a cost-effective alternative to paying top dollar for a brand new board.

It's guaranteed working, so you can get your heat back on with confidence.