Lochinvar & A.O. Smith 100111778 PCB Assembly
The Lochinvar & A.O. Smith 100111778 PCB Assembly is a direct replacement integrated control board designed for high-efficiency commercial water heaters and boilers. This OEM control board serves as the primary logic processor, regulating ignition sequences, flame sensing, and temperature modulation to ensure precise thermal output. Engineered for rigorous duty cycles, the 100111778 circuit board utilizes a robust architecture to manage communication between the user interface and mechanical components like the blower and gas valve. It comes pre-mounted on a protective base to isolate sensitive electronics from vibration and minor physical stress during installation. When diagnosing a Lochinvar lockout code or power failure in the field, this assembly provides the necessary reliability for HVAC mechanical contractors to restore system operation. Proper grounding and line voltage verification are critical when installing this water heater controller to prevent logic errors or premature failure of the onboard microprocessors.
- Precise Ignition Control: Manages hot surface igniter timing and flame rectification circuits for reliable startup.
- OEM Compatibility: Exact drop-in replacement for specific Lochinvar and A.O. Smith Power-fit and Knight series units.
- Diagnostic Reliability: Integrated circuitry supports error code reporting for faster troubleshooting of sensor faults.
- Base Plate Assembly: Includes a factory-mounted base to simplify mounting and protect the PCB traces during handling.
Common Questions
Will this board fix a 'No Flame' ignition lockout?
If the igniter and flame sensor are within spec, this 100111778 control module is often the next step in resolving logic failures that prevent the gas valve relay from energizing.
Is this PCB compatible with different gas types?
Yes, this Lochinvar control assembly is designed to manage the combustion sequence for both Natural Gas and Propane configurations, provided the boiler parameters are set correctly.
Does this assembly include the plastic standoff base?
The 100111778 replacement kit comes as a PCB assembly with base, ensuring the board is properly spaced and insulated from the metal chassis.
This item is not eligible for free shipping.
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: $583.55
-65%$583.55
$204.24Lochinvar & A.O. Smith 100111778 PCB Assembly
The Lochinvar & A.O. Smith 100111778 PCB Assembly is a direct replacement integrated control board designed for high-efficiency commercial water heaters and boilers. This OEM control board serves as the primary logic processor, regulating ignition sequences, flame sensing, and temperature modulation to ensure precise thermal output. Engineered for rigorous duty cycles, the 100111778 circuit board utilizes a robust architecture to manage communication between the user interface and mechanical components like the blower and gas valve. It comes pre-mounted on a protective base to isolate sensitive electronics from vibration and minor physical stress during installation. When diagnosing a Lochinvar lockout code or power failure in the field, this assembly provides the necessary reliability for HVAC mechanical contractors to restore system operation. Proper grounding and line voltage verification are critical when installing this water heater controller to prevent logic errors or premature failure of the onboard microprocessors.
- Precise Ignition Control: Manages hot surface igniter timing and flame rectification circuits for reliable startup.
- OEM Compatibility: Exact drop-in replacement for specific Lochinvar and A.O. Smith Power-fit and Knight series units.
- Diagnostic Reliability: Integrated circuitry supports error code reporting for faster troubleshooting of sensor faults.
- Base Plate Assembly: Includes a factory-mounted base to simplify mounting and protect the PCB traces during handling.
Common Questions
Will this board fix a 'No Flame' ignition lockout?
If the igniter and flame sensor are within spec, this 100111778 control module is often the next step in resolving logic failures that prevent the gas valve relay from energizing.
Is this PCB compatible with different gas types?
Yes, this Lochinvar control assembly is designed to manage the combustion sequence for both Natural Gas and Propane configurations, provided the boiler parameters are set correctly.
Does this assembly include the plastic standoff base?
The 100111778 replacement kit comes as a PCB assembly with base, ensuring the board is properly spaced and insulated from the metal chassis.
This item is not eligible for free shipping.
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 100111778 PCB Assembly is a direct replacement integrated control board designed for high-efficiency commercial water heaters and boilers. This OEM control board serves as the primary logic processor, regulating ignition sequences, flame sensing, and temperature modulation to ensure precise thermal output. Engineered for rigorous duty cycles, the 100111778 circuit board utilizes a robust architecture to manage communication between the user interface and mechanical components like the blower and gas valve. It comes pre-mounted on a protective base to isolate sensitive electronics from vibration and minor physical stress during installation. When diagnosing a Lochinvar lockout code or power failure in the field, this assembly provides the necessary reliability for HVAC mechanical contractors to restore system operation. Proper grounding and line voltage verification are critical when installing this water heater controller to prevent logic errors or premature failure of the onboard microprocessors.
- Precise Ignition Control: Manages hot surface igniter timing and flame rectification circuits for reliable startup.
- OEM Compatibility: Exact drop-in replacement for specific Lochinvar and A.O. Smith Power-fit and Knight series units.
- Diagnostic Reliability: Integrated circuitry supports error code reporting for faster troubleshooting of sensor faults.
- Base Plate Assembly: Includes a factory-mounted base to simplify mounting and protect the PCB traces during handling.
Common Questions
Will this board fix a 'No Flame' ignition lockout?
If the igniter and flame sensor are within spec, this 100111778 control module is often the next step in resolving logic failures that prevent the gas valve relay from energizing.
Is this PCB compatible with different gas types?
Yes, this Lochinvar control assembly is designed to manage the combustion sequence for both Natural Gas and Propane configurations, provided the boiler parameters are set correctly.
Does this assembly include the plastic standoff base?
The 100111778 replacement kit comes as a PCB assembly with base, ensuring the board is properly spaced and insulated from the metal chassis.
This item is not eligible for free shipping.
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.
