Lochinvar & A.O. Smith 100112612 Board
As a seasoned technician, you know that a flickering or unresponsive display on a solar-coil or STH unit usually points directly to the Lochinvar & A.O. Smith 100112612 STH Display Board. This OEM dual-line LCD interface is the primary diagnostic and configuration point for high-efficiency systems, allowing for real-time monitoring of tank temperatures and operating setpoints. Built for high-reliability environments, this STH control board (Part ID 747098) ensures seamless communication with the main CCB to manage solar-coil heating cycles and system modulation. Whether you are addressing an "E01" dry-fire error or recalibrating the internal aquastat, this Lochinvar replacement part provides the precise digital feedback required for field troubleshooting. The 32-character display is essential for navigating the fault occurrence history and restoring factory defaults. Designed for compatibility with specific A.O. Smith solar thermal and residential heating models, this board features keyed plug-and-play connectors to eliminate wiring errors during high-voltage service calls.
- OEM Direct Match: Ensures full logical compatibility with existing Lochinvar and A.O. Smith communication protocols.
- Diagnostic Precision: Provides access to the 9-event fault history and cumulative error counters for faster root-cause analysis.
- Robust Interface: Features a 7-button tactile layout and 32-character LCD for clear visibility in dark mechanical rooms.
- Energy Optimization: Allows for tight differential adjustment of setpoints to maximize overall system efficiency.
Common Questions
Is this board compatible with all Lochinvar boilers?
No, the 100112612 is specifically engineered for STH and solar-coil integrated units. Always verify your model serial number against the 747098 part ID before installation.
Does this include the main CCB or just the display?
This is the UIM (User Interface Module) display board. If your system has a total communication failure, you may also need to inspect the 24VAC transformer and main CCB socket connectors.
What does a blank display signify?
Check for 24VAC at the main control board first. If power is present but the LCD remains inactive, the ribbon cable or the 100112612 board itself has likely failed.
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: $555.07
-65%$555.07
$194.27Lochinvar & A.O. Smith 100112612 Board
As a seasoned technician, you know that a flickering or unresponsive display on a solar-coil or STH unit usually points directly to the Lochinvar & A.O. Smith 100112612 STH Display Board. This OEM dual-line LCD interface is the primary diagnostic and configuration point for high-efficiency systems, allowing for real-time monitoring of tank temperatures and operating setpoints. Built for high-reliability environments, this STH control board (Part ID 747098) ensures seamless communication with the main CCB to manage solar-coil heating cycles and system modulation. Whether you are addressing an "E01" dry-fire error or recalibrating the internal aquastat, this Lochinvar replacement part provides the precise digital feedback required for field troubleshooting. The 32-character display is essential for navigating the fault occurrence history and restoring factory defaults. Designed for compatibility with specific A.O. Smith solar thermal and residential heating models, this board features keyed plug-and-play connectors to eliminate wiring errors during high-voltage service calls.
- OEM Direct Match: Ensures full logical compatibility with existing Lochinvar and A.O. Smith communication protocols.
- Diagnostic Precision: Provides access to the 9-event fault history and cumulative error counters for faster root-cause analysis.
- Robust Interface: Features a 7-button tactile layout and 32-character LCD for clear visibility in dark mechanical rooms.
- Energy Optimization: Allows for tight differential adjustment of setpoints to maximize overall system efficiency.
Common Questions
Is this board compatible with all Lochinvar boilers?
No, the 100112612 is specifically engineered for STH and solar-coil integrated units. Always verify your model serial number against the 747098 part ID before installation.
Does this include the main CCB or just the display?
This is the UIM (User Interface Module) display board. If your system has a total communication failure, you may also need to inspect the 24VAC transformer and main CCB socket connectors.
What does a blank display signify?
Check for 24VAC at the main control board first. If power is present but the LCD remains inactive, the ribbon cable or the 100112612 board itself has likely failed.
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
As a seasoned technician, you know that a flickering or unresponsive display on a solar-coil or STH unit usually points directly to the Lochinvar & A.O. Smith 100112612 STH Display Board. This OEM dual-line LCD interface is the primary diagnostic and configuration point for high-efficiency systems, allowing for real-time monitoring of tank temperatures and operating setpoints. Built for high-reliability environments, this STH control board (Part ID 747098) ensures seamless communication with the main CCB to manage solar-coil heating cycles and system modulation. Whether you are addressing an "E01" dry-fire error or recalibrating the internal aquastat, this Lochinvar replacement part provides the precise digital feedback required for field troubleshooting. The 32-character display is essential for navigating the fault occurrence history and restoring factory defaults. Designed for compatibility with specific A.O. Smith solar thermal and residential heating models, this board features keyed plug-and-play connectors to eliminate wiring errors during high-voltage service calls.
- OEM Direct Match: Ensures full logical compatibility with existing Lochinvar and A.O. Smith communication protocols.
- Diagnostic Precision: Provides access to the 9-event fault history and cumulative error counters for faster root-cause analysis.
- Robust Interface: Features a 7-button tactile layout and 32-character LCD for clear visibility in dark mechanical rooms.
- Energy Optimization: Allows for tight differential adjustment of setpoints to maximize overall system efficiency.
Common Questions
Is this board compatible with all Lochinvar boilers?
No, the 100112612 is specifically engineered for STH and solar-coil integrated units. Always verify your model serial number against the 747098 part ID before installation.
Does this include the main CCB or just the display?
This is the UIM (User Interface Module) display board. If your system has a total communication failure, you may also need to inspect the 24VAC transformer and main CCB socket connectors.
What does a blank display signify?
Check for 24VAC at the main control board first. If power is present but the LCD remains inactive, the ribbon cable or the 100112612 board itself has likely failed.
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.
