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Lochinvar & A.O. Smith 100108267 24" Thermocouple

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Special Price $25.56 Regular Price $33.23
Out of stock
SKU
100108267
The Lochinvar & A.O. Smith 100108267 24" Thermocouple is a temperature-sensing component that is used in gas-fired water heaters and boilers within the HVAC systems. It is composed of a metal probe that creates a millivolt signal that is proportional to the heat produced by the pilot flame, which enables the gas valve to be open only when a flame exists. This thermocouple is installed close to the pilot assembly, and it confirms that the pilot is operating. It facilitates combustion by stopping the flow of gases in case the pilot flame is suppressed.
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HVAC Furnace Parts, Thermocouple
Manufacturer:
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Manufacturer Name: Lochinvar & A.O. Smith
Product Number: 100108267
OEM Part Number: 100108267
Product Description: 24" Thermocouple
Weight:0.11lbs/49.9g

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Product Questions (2)
Customer Questions
What maintenance is required for the Lochinvar & A.O. Smith 100108267 Thermocouple?

Inspect the thermocouple regularly for corrosion, soot buildup, or loose mounting. Clean the tip gently to maintain proper flame sensing and secure electrical contact. Replace it if the water heater shows inconsistent ignition or pilot flame dropout.

What are common issues with the Lochinvar & A.O. Smith 100108267 Thermocouple?

  • Weak pilot signal due to worn sensor.
  • Intermittent ignition failure from poor flame contact.
  • Corrosion or soot affecting conductivity.
  • Loose or misaligned mounting reducing signal.
  • Pilot outage under load conditions.

Installation Steps

Step 1: Turn off gas and power supply to the unit for safety.

Step 2: Use gloves and allow components to cool before handling.

Step 3: Remove old thermocouple from pilot assembly carefully.

Step 4: Position new thermocouple in pilot flame area and align mounting bracket.

Step 5: Tighten connection nut securely to gas control valve.

Step 6: Restore supply and test pilot ignition, confirming stable flame operation.