Linear LDCO Series Opener Manuals

These are Linear DC ceiling-mount openers. The manuals we have posted cover LDCO863B, LDCO852, LDCO850, LDCO850-IB, LDCO841, LDCO801, and LDCO800. They use 318 MHz MegaCode remotes such as the MDT-1A, ACT-34B, and NMTK keypad. Some models include or accept battery backup. Not every LDCO model or manual is shown here. We post the manuals we have. Older or uncommon units may not be listed.

Shared features

• DC motor ceiling-mount openers
• 318 MHz MegaCode radio
• LDCO863B and LDCO841 are the smart / app-capable pair in this family
• Battery backup is included or optional on several models
• Belt or chain rail depending on the kit

Compatible remotes and parts

Here are some common compatible Linear parts. Search all Linear parts on the store: Shop Linear Parts.

NMTK Wireless Keypad

Current MegaCode keypad. Replaces MDTK and LPWKP on these LDCO operators.

Shop NMTK

ACT-34B Keychain Remote

4-button MegaCode keychain. Each button can learn to a different Linear opener.

Shop ACT-34B

MDT-1A Remote

1-button MegaCode visor remote for these LDCO operators.

Shop MDT-1A

HAE00002 Safety Sensors

Linear photo-eye safety sensors used on these residential operators.

Shop HAE00002

We don’t sell opener circuit boards. They typically aren’t the issue when experiencing problems with the operator. Go through the troubleshooting steps in the operator manual and if you still believe that you need a logic board, email store@garagedoorzone.com and we can point you to the correct part number.