TH198024 – THERMOCOUPLE (24″)

A thermocouple is the safety device that keeps the pilot light gas flowing on older standing-pilot furnaces and water heaters. If your pilot light won’t stay lit after you release the button, the thermocouple is almost always the problem. The 24-inch is the most common length for residential gas appliances.

Specs: 24-inch length, stainless steel, universal adapter fittings included

Replaces: TH198024, 1980-024

Fits: Universal — fits most gas furnaces, water heaters, and boilers with standing pilot lights including Honeywell, White Rodgers, and Robertshaw gas valves

Need help? See our Furnace Not Heating Guide.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 1980-024
• TH198024

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.