100108267 Lochinvar & A.O. Smith 24" THERMOCOUPLE

100108267 Lochinvar & A.O. Smith 24" THERMOCOUPLE (1 year warranty) 

100108267 A.O. Smith / Lochinvar 24" Thermocouple — Genuine OEM replacement for standing‑pilot water heaters. Provides stable millivolt output to keep the gas valve energized when the pilot flame is present. Direct replacement for 9000056015, 233‑46501‑24, and 1980‑024. Durable copper/brass construction and backed by a 1‑year OEM warranty. Ideal for residential and commercial A.O. Smith and Lochinvar water heater models using a 24" pilot assembly.

Replaces 9000056015, 233-46501-24, 1980-024, 

00108267 is the OEM 24" thermocouple for A.O. Smith and Lochinvar water heaters, replacing 9000056015, 233‑46501‑24, and 1980‑024. It is a standard millivolt safety thermocouple used on standing‑pilot water heater assemblies.

• Part Number: 100108267

• OEM: A.O. Smith / Lochinvar

• Length: 24"

• Type: Standing‑pilot thermocouple

• Millivolt Output: Standard 30 mV class

• Warranty: 1‑year OEM warranty

• 9000056015 (direct replacement)

• 233‑46501‑24

• 1980‑024 (Robertshaw Equivalent)

The Robertshaw 1980‑024 is widely cross‑listed as a universal replacement, but OEM 100108267 is the correct match for A.O. Smith / Lochinvar assemblies.

Used in A.O. Smith & Lochinvar standing‑pilot water heaters including:

• Residential atmospheric units

• Light commercial tank heaters

• Legacy pilot‑style models still in service

Common replacement symptoms:

• Pilot won’t stay lit

• Intermittent burner dropout

• Weak or unstable millivolt signal

• Preventive maintenance during tank rebuilds