Lochinvar & A.O. Smith 100327100 Switch
The Lochinvar & A.O. Smith 100327100 Switch is a critical manual reset switch designed to protect water heaters and HVAC systems from hazardous overheating conditions. As a resettable thermal switch, it functions as a high-limit safety control that breaks the electrical circuit—specifically the thermocouple or gas valve circuit—whenever temperatures exceed the L270F threshold. This part is the direct replacement for 100166080 and is compatible with a wide range of Lochinvar and A.O. Smith models, including the LT(N,L)050, 051, and XD(N,L)050 series. For a veteran technician, this means ensuring the combustion chamber has adequate airflow to prevent nuisance tripping. When the pilot won't stay lit or the status light indicates a lockout, verify the thermal limit has not been exceeded before resetting. This OEM water heater part ensures the system stays within safe operating parameters and prevents damage to the burner assembly or heat exchanger.
Key Benefits- Precise Thermal Protection: This L270F manual reset switch provides a hard cutoff at 270 degrees Fahrenheit to prevent uncontrolled high-heat scenarios.
- Universal Compatibility: Engineered as a drop-in replacement for 100166080 and old part number PRS1024, simplifying truck stock requirements.
- Reliable Safety Integration: Directly interrupts the thermocouple circuit to shut down gas flow, ensuring a fail-safe operation during flame rollout or restricted airflow.
- Cost-Effective Maintenance: Replacing a faulty thermal high temperature limit switch prevents expensive damage to the main burner assembly and gas control valve.
Why does my 100327100 thermal switch keep tripping?
Repeated tripping usually indicates a lack of combustion air, a clogged flame arrestor, or a dirty air filter. If the switch clicks when pressed, it has successfully detected an over-temperature condition in the combustion chamber.
Can I bypass the resettable thermal switch for testing?
No, this is a safety device. Bypassing a manual reset thermal switch can lead to equipment failure or dangerous operating conditions. Always identify the root cause of the high-limit trip before resuming operation.
Is the 100327100 compatible with older Lochinvar models?
Yes, it is the designated OEM replacement for several legacy lines including the Lockshield and XD-series units. Always verify your specific model number against the technical data sheet.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $69.89
-65%$69.89
$24.46Lochinvar & A.O. Smith 100327100 Switch
The Lochinvar & A.O. Smith 100327100 Switch is a critical manual reset switch designed to protect water heaters and HVAC systems from hazardous overheating conditions. As a resettable thermal switch, it functions as a high-limit safety control that breaks the electrical circuit—specifically the thermocouple or gas valve circuit—whenever temperatures exceed the L270F threshold. This part is the direct replacement for 100166080 and is compatible with a wide range of Lochinvar and A.O. Smith models, including the LT(N,L)050, 051, and XD(N,L)050 series. For a veteran technician, this means ensuring the combustion chamber has adequate airflow to prevent nuisance tripping. When the pilot won't stay lit or the status light indicates a lockout, verify the thermal limit has not been exceeded before resetting. This OEM water heater part ensures the system stays within safe operating parameters and prevents damage to the burner assembly or heat exchanger.
Key Benefits- Precise Thermal Protection: This L270F manual reset switch provides a hard cutoff at 270 degrees Fahrenheit to prevent uncontrolled high-heat scenarios.
- Universal Compatibility: Engineered as a drop-in replacement for 100166080 and old part number PRS1024, simplifying truck stock requirements.
- Reliable Safety Integration: Directly interrupts the thermocouple circuit to shut down gas flow, ensuring a fail-safe operation during flame rollout or restricted airflow.
- Cost-Effective Maintenance: Replacing a faulty thermal high temperature limit switch prevents expensive damage to the main burner assembly and gas control valve.
Why does my 100327100 thermal switch keep tripping?
Repeated tripping usually indicates a lack of combustion air, a clogged flame arrestor, or a dirty air filter. If the switch clicks when pressed, it has successfully detected an over-temperature condition in the combustion chamber.
Can I bypass the resettable thermal switch for testing?
No, this is a safety device. Bypassing a manual reset thermal switch can lead to equipment failure or dangerous operating conditions. Always identify the root cause of the high-limit trip before resuming operation.
Is the 100327100 compatible with older Lochinvar models?
Yes, it is the designated OEM replacement for several legacy lines including the Lockshield and XD-series units. Always verify your specific model number against the technical data sheet.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Lochinvar & A.O. Smith 100327100 Switch is a critical manual reset switch designed to protect water heaters and HVAC systems from hazardous overheating conditions. As a resettable thermal switch, it functions as a high-limit safety control that breaks the electrical circuit—specifically the thermocouple or gas valve circuit—whenever temperatures exceed the L270F threshold. This part is the direct replacement for 100166080 and is compatible with a wide range of Lochinvar and A.O. Smith models, including the LT(N,L)050, 051, and XD(N,L)050 series. For a veteran technician, this means ensuring the combustion chamber has adequate airflow to prevent nuisance tripping. When the pilot won't stay lit or the status light indicates a lockout, verify the thermal limit has not been exceeded before resetting. This OEM water heater part ensures the system stays within safe operating parameters and prevents damage to the burner assembly or heat exchanger.
Key Benefits- Precise Thermal Protection: This L270F manual reset switch provides a hard cutoff at 270 degrees Fahrenheit to prevent uncontrolled high-heat scenarios.
- Universal Compatibility: Engineered as a drop-in replacement for 100166080 and old part number PRS1024, simplifying truck stock requirements.
- Reliable Safety Integration: Directly interrupts the thermocouple circuit to shut down gas flow, ensuring a fail-safe operation during flame rollout or restricted airflow.
- Cost-Effective Maintenance: Replacing a faulty thermal high temperature limit switch prevents expensive damage to the main burner assembly and gas control valve.
Why does my 100327100 thermal switch keep tripping?
Repeated tripping usually indicates a lack of combustion air, a clogged flame arrestor, or a dirty air filter. If the switch clicks when pressed, it has successfully detected an over-temperature condition in the combustion chamber.
Can I bypass the resettable thermal switch for testing?
No, this is a safety device. Bypassing a manual reset thermal switch can lead to equipment failure or dangerous operating conditions. Always identify the root cause of the high-limit trip before resuming operation.
Is the 100327100 compatible with older Lochinvar models?
Yes, it is the designated OEM replacement for several legacy lines including the Lockshield and XD-series units. Always verify your specific model number against the technical data sheet.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
