Lennox 19W61 LB-112237A Hot Surface Ignitor – 95V

Specifications

• Catalog Number: 19W61
• Part Number: LB-112237A
• Brand: Lennox
• Product Type: Hot Surface Ignitor Assembly
• Ignitor Type: Silicon Nitride
• Ignitor Manufacturer: Kyocera
• Ignitor Number: LXT-01A
• Ignitor Part Number: 100536-01
• Nominal Voltage: 95 VAC
• Resistance: 25–47 Ohms @ 25°C
• Warm-Up Time: 20 Seconds
• Lead Length: 12 in.
• Connector: 2-Pin AMP Connector
• Application: Gas Furnaces

These specifications come directly from Lennox's 19W61 product information.

Replacement & Cross-Reference Part Numbers

The Lennox 19W61 replaces or cross-references with:

• 19W61
• 19W6101
• LB-112237A
• LB112237A
• 100536-01
• LXT-01A
• 75M21

Lennox identifies the assembly as LB-112237A containing the Kyocera LXT-01A / 100536-01 ignitor, while replacement-parts data also identifies 75M21 as an older number replaced by 19W61.

Compatible Brands

The 19W61 / LB-112237A ignitor is found in select equipment from:

• Lennox
• Armstrong Air
• Ducane
• Concord
• Aire-Flo

Replacement-parts data identifies LB-112237A and 100536-01 across Lennox and Allied-family equipment.

Lennox 19W61 Hot Surface Ignitor

The Lennox 19W61 is a 95V silicon nitride hot surface ignitor assembly used to ignite the burners during the furnace heating cycle.

The assembly uses a Kyocera LXT-01A silicon nitride ignitor, part number 100536-01, and includes a 12-inch lead with a 2-pin connector.

Common Symptoms of a Failed Furnace Ignitor

• Ignitor does not glow
• Furnace will not ignite
• Burners fail to light
• Furnace repeatedly attempts ignition
• Intermittent ignition
• Furnace goes into ignition lockout
• Ignitor is visibly cracked or damaged

19W61 vs. LB-112237A

These numbers refer to the same Lennox replacement assembly:

19W61 – Lennox catalog number
LB-112237A – assembly part number
100536-01 / LXT-01A – Kyocera silicon nitride ignitor contained in the assembly.

This is useful to have on the page because a customer may search any one of these numbers from the old ignitor or furnace parts information.

Buy Lennox 19W61 Ignitor in Canada

Buy the Lennox 19W61 / LB-112237A 95V Hot Surface Furnace Ignitor from OemHvacPartsCanada.ca.

Replacement ignitor assembly for select Lennox, Armstrong Air, Ducane, Concord and Aire-Flo gas furnaces.