LiftMaster K41-0390-000 EMI Board for MAXUM Operators

K41-0390-000 is a MAXUM EMI board for 480VAC LiftMaster commercial door operators. It is designed for use with select MAXUM 700 lb. and 1200 lb. operator configurations, including JH 700 applications, and is intended for units manufactured after 2023 only.

This replacement EMI board is used with compatible JDC, JHDC, RJDC, and TDC models. Matching the correct part number, voltage, model, and production year is important to help ensure proper compatibility and reduce ordering errors.

Product Description

• Replacement EMI board for select LiftMaster MAXUM commercial door operators
• Part number: K41-0390-000
• Also known as: K41-0392-000
• Designed for 480VAC applications
• Recommended for MAXUM 700 lb. and 1200 lb. operators
• Compatible with JDC, JHDC, RJDC, and TDC models
• For operators manufactured after 2023 only
• Used in JH 700 and related MAXUM operator configurations
• Helps restore proper electrical system operation in compatible commercial operators
• Review the installation manual or replacement parts diagram before ordering to confirm fitment