Lochinvar & A.O. Smith 100111019 Lower Probe
The Lochinvar & A.O. Smith 100111019 Lower Probe is a critical OEM replacement temperature sensor designed for commercial high-efficiency water heaters. When you are troubleshooting erratic temperature swings or lockout codes on units like the Cyclone BTH, SUF, or HCG series, this immersion-style probe is often the primary fix. It provides the central control board with precise thermistor data from the lower section of the tank to manage thermal stacking and prevent high-limit tripping. This specific component is compatible with models ranging from 60-120 through 100-250, acting as a direct electrical and mechanical substitute for legacy part number 9006242015. Engineered for commercial HVAC maintenance, the 100111019 ensures the system maintains peak thermal efficiency by accurately monitoring standard operating set points. Its durable construction is intended to withstand the high-cycle demands of industrial potable water heating and space heating applications without signal degradation.
Key Benefits- Precise Temperature Regulation: Delivers accurate resistance-to-temperature data to the CCB for optimal burner modulation.
- Broad Compatibility: Designed specifically for A.O. Smith Cyclone and Lochinvar commercial gas units, including BTH, SUF, and HCG series.
- Direct OEM Fit: Replaces part 9006242015 with exact factory specifications, ensuring seamless integration into the existing wiring harness.
- Enhanced System Safety: Acts as a vital monitor to prevent overheating and redundant high-limit cutouts in high-demand environments.
What are the symptoms of a failing lower probe?
Common indicators include incorrect temperature display on the control module, inconsistent hot water delivery, or specific fault codes related to temperature sensor "open" or "short" circuits.
Is this probe compatible with residential water heaters?
The 100111019 is specifically engineered for commercial-grade high-efficiency models. We recommend verifying your unit’s serial number against the manufacturer’s parts list to confirm fitment.
Does this include the O-ring or mounting hardware?
This part typically includes the probe assembly; however, it is standard practice to inspect the existing port and gasket for scale buildup or wear during replacement.
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: $216.41
-65%$216.41
$75.74Product Information
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Description
The Lochinvar & A.O. Smith 100111019 Lower Probe is a critical OEM replacement temperature sensor designed for commercial high-efficiency water heaters. When you are troubleshooting erratic temperature swings or lockout codes on units like the Cyclone BTH, SUF, or HCG series, this immersion-style probe is often the primary fix. It provides the central control board with precise thermistor data from the lower section of the tank to manage thermal stacking and prevent high-limit tripping. This specific component is compatible with models ranging from 60-120 through 100-250, acting as a direct electrical and mechanical substitute for legacy part number 9006242015. Engineered for commercial HVAC maintenance, the 100111019 ensures the system maintains peak thermal efficiency by accurately monitoring standard operating set points. Its durable construction is intended to withstand the high-cycle demands of industrial potable water heating and space heating applications without signal degradation.
Key Benefits- Precise Temperature Regulation: Delivers accurate resistance-to-temperature data to the CCB for optimal burner modulation.
- Broad Compatibility: Designed specifically for A.O. Smith Cyclone and Lochinvar commercial gas units, including BTH, SUF, and HCG series.
- Direct OEM Fit: Replaces part 9006242015 with exact factory specifications, ensuring seamless integration into the existing wiring harness.
- Enhanced System Safety: Acts as a vital monitor to prevent overheating and redundant high-limit cutouts in high-demand environments.
What are the symptoms of a failing lower probe?
Common indicators include incorrect temperature display on the control module, inconsistent hot water delivery, or specific fault codes related to temperature sensor "open" or "short" circuits.
Is this probe compatible with residential water heaters?
The 100111019 is specifically engineered for commercial-grade high-efficiency models. We recommend verifying your unit’s serial number against the manufacturer’s parts list to confirm fitment.
Does this include the O-ring or mounting hardware?
This part typically includes the probe assembly; however, it is standard practice to inspect the existing port and gasket for scale buildup or wear during replacement.
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.
