Lochinvar L100275508 Main Control Board

Product Description

The LOCHINVAR L100275508 is a main control board designed to serve as the central processing and sequencing component in compatible LOCHINVAR heating systems. The control board manages burner operation, safety interlocks, ignition sequencing, and system diagnostics. It is a direct-replacement board intended for installation by licensed HVAC or hydronic heating technicians performing a field repair or scheduled maintenance on an affected unit. This board restores factory control logic to systems that have experienced board failure.

The L100275508 main control board is suited for residential and light commercial hydronic or water heating applications where LOCHINVAR equipment is installed. Typical installation scenarios include boiler rooms, mechanical rooms, and utility spaces serviced by LOCHINVAR heating equipment. Technicians replacing a failed or damaged control board will find this part restores proper system operation without modification.

Key Features

• Serves as the central control and sequencing board for compatible LOCHINVAR heating systems
• Manages burner firing, safety interlock monitoring, and ignition sequencing
• Direct OEM-replacement design supports straightforward field installation
• Supports system diagnostic functions to aid in fault identification

Compatibility

Designed as an OEM-style replacement main control board for compatible LOCHINVAR heating systems. Verify fitment against the unit model and serial number before ordering, as specific compatibility is not confirmed in available product data.

Installation Notes

Installation should be performed by a licensed HVAC or hydronic heating technician. Disconnect all power to the unit and allow capacitors to discharge before handling the control board. Follow the equipment manufacturer service manual for connector locations and mounting procedures. Local codes and manufacturer guidelines govern proper installation and startup.

Technical Specifications

• Component Type: Main Control Board

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100275508