Lochinvar & A.O. Smith 100309396 PCB Assembly
The Lochinvar & A.O. Smith 100309396 is a universal electronic thermostat control board kit engineered to replace faulty factory controls in a wide range of commercial and residential water heating systems. As a critical HVACR control module, this OEM replacement PCB manages thermal cycles and high-limit safety logic to ensure precise temperature regulation. It is designed for compatibility with multiple parent brands, including State Industries and Reliance, serving as a drop-in solution for legacy and modern high-efficiency units. Modernized circuit architecture helps eliminate common failure points like erratic temperature swings or sensor communication errors. Proper installation of this water heater circuit board is essential for maintaining factory-specified operational safety margins and system efficiency. When diagnosing failing equipment, this 100309396 PCB assembly is the standard professional choice for restoring full digital thermostat control functionality in demanding field applications.
Key Benefits for Contractors:
- Wide Compatibility: Works across Lochinvar, A.O. Smith, and American Water Heaters product lines.
- Precision Logic: Advanced printed circuit board design ensures accurate thermistor readings and burner sequencing.
- OEM Standards: Direct replacement part avoids field-modified bypasses and substandard aftermarket reliability issues.
- Integrated Safety: Monitors high-limit cutout and temperature sensor inputs to prevent equipment overheating.
- Simplified Service: Bundled as a universal control kit to reduce van inventory and maximize first-call completion rates.
Common Technical Questions:
How do I confirm if this PCB fits my specific model?
Technicians should cross-reference the part number 100309396 or the superseded 9008914005 against the unit's serial number and data plate to ensure compatibility with the existing wire harness.
Does this board require specialized programming during installation?
This thermostat PCB assembly is typically plug-and-play, but you must ensure the dip switch settings and harness connections match the specific system requirements of the commercial water heater being serviced.
What are the signs of a failing control board versus a bad sensor?
A faulty 100309396 board often presents as intermittent power loss or failure to respond to input, whereas a sensor issue usually triggers a specific error code or shorted circuit warning.
IMPORTANT: Installation should only be performed by qualified HVACR technicians. Incorrect wiring of electronic controls can lead to equipment failure or hazardous operating conditions. Always check the California Proposition 65 warning regarding materials known to cause reproductive harm.
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.
Lochinvar & A.O. Smith 100309396 PCB Assembly
The Lochinvar & A.O. Smith 100309396 is a universal electronic thermostat control board kit engineered to replace faulty factory controls in a wide range of commercial and residential water heating systems. As a critical HVACR control module, this OEM replacement PCB manages thermal cycles and high-limit safety logic to ensure precise temperature regulation. It is designed for compatibility with multiple parent brands, including State Industries and Reliance, serving as a drop-in solution for legacy and modern high-efficiency units. Modernized circuit architecture helps eliminate common failure points like erratic temperature swings or sensor communication errors. Proper installation of this water heater circuit board is essential for maintaining factory-specified operational safety margins and system efficiency. When diagnosing failing equipment, this 100309396 PCB assembly is the standard professional choice for restoring full digital thermostat control functionality in demanding field applications.
Key Benefits for Contractors:
- Wide Compatibility: Works across Lochinvar, A.O. Smith, and American Water Heaters product lines.
- Precision Logic: Advanced printed circuit board design ensures accurate thermistor readings and burner sequencing.
- OEM Standards: Direct replacement part avoids field-modified bypasses and substandard aftermarket reliability issues.
- Integrated Safety: Monitors high-limit cutout and temperature sensor inputs to prevent equipment overheating.
- Simplified Service: Bundled as a universal control kit to reduce van inventory and maximize first-call completion rates.
Common Technical Questions:
How do I confirm if this PCB fits my specific model?
Technicians should cross-reference the part number 100309396 or the superseded 9008914005 against the unit's serial number and data plate to ensure compatibility with the existing wire harness.
Does this board require specialized programming during installation?
This thermostat PCB assembly is typically plug-and-play, but you must ensure the dip switch settings and harness connections match the specific system requirements of the commercial water heater being serviced.
What are the signs of a failing control board versus a bad sensor?
A faulty 100309396 board often presents as intermittent power loss or failure to respond to input, whereas a sensor issue usually triggers a specific error code or shorted circuit warning.
IMPORTANT: Installation should only be performed by qualified HVACR technicians. Incorrect wiring of electronic controls can lead to equipment failure or hazardous operating conditions. Always check the California Proposition 65 warning regarding materials known to cause reproductive harm.
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
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100309396 is a universal electronic thermostat control board kit engineered to replace faulty factory controls in a wide range of commercial and residential water heating systems. As a critical HVACR control module, this OEM replacement PCB manages thermal cycles and high-limit safety logic to ensure precise temperature regulation. It is designed for compatibility with multiple parent brands, including State Industries and Reliance, serving as a drop-in solution for legacy and modern high-efficiency units. Modernized circuit architecture helps eliminate common failure points like erratic temperature swings or sensor communication errors. Proper installation of this water heater circuit board is essential for maintaining factory-specified operational safety margins and system efficiency. When diagnosing failing equipment, this 100309396 PCB assembly is the standard professional choice for restoring full digital thermostat control functionality in demanding field applications.
Key Benefits for Contractors:
- Wide Compatibility: Works across Lochinvar, A.O. Smith, and American Water Heaters product lines.
- Precision Logic: Advanced printed circuit board design ensures accurate thermistor readings and burner sequencing.
- OEM Standards: Direct replacement part avoids field-modified bypasses and substandard aftermarket reliability issues.
- Integrated Safety: Monitors high-limit cutout and temperature sensor inputs to prevent equipment overheating.
- Simplified Service: Bundled as a universal control kit to reduce van inventory and maximize first-call completion rates.
Common Technical Questions:
How do I confirm if this PCB fits my specific model?
Technicians should cross-reference the part number 100309396 or the superseded 9008914005 against the unit's serial number and data plate to ensure compatibility with the existing wire harness.
Does this board require specialized programming during installation?
This thermostat PCB assembly is typically plug-and-play, but you must ensure the dip switch settings and harness connections match the specific system requirements of the commercial water heater being serviced.
What are the signs of a failing control board versus a bad sensor?
A faulty 100309396 board often presents as intermittent power loss or failure to respond to input, whereas a sensor issue usually triggers a specific error code or shorted circuit warning.
IMPORTANT: Installation should only be performed by qualified HVACR technicians. Incorrect wiring of electronic controls can lead to equipment failure or hazardous operating conditions. Always check the California Proposition 65 warning regarding materials known to cause reproductive harm.
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.
