LiftMaster 973LM Remote

Your LiftMaster 973LM at a glance

Confirm that the label says LiftMaster 973LM. Preserve any additional suffix or hardware-revision marking; a matching shell or model number used by another brand is not enough.

These legacy Security+ models need the matching opener generation.

973LM battery & holder

CR2032, 3 V; the shared guide shows positive side up.

Programming your 973LM

Setup depends on the exact receiver and hardware revision. These model notes do not establish a complete pairing sequence for your equipment.

Match both the remote and opener or external receiver. Keep the door or gate in sight and clear of people. Do not hold a LEARN button or erase memory unless the instructions for that exact equipment require it.

Compatibility & exclusions

The shared guide describes 390 MHz Security+ equipment with an orange Learn button.

If your 973LM is not working

General troubleshooting checks.

• No response: check the marked battery type and polarity; note whether another authorized control works.
• Short range: note when the problem began and whether it changes by location. Do not alter receiver wiring.
• Damaged case or buttons: keep the model label; stop using exposed, wet or damaged electronics.

973LM repair, parts & replacement

The manufacturer documents 41A5056-3 as a housing case kit. The circuit board is not included. Match the historical guide and the case on your unit. Current availability must be checked separately.

Model guides

Use the model-specific notes on this page with the instructions for your opener or receiver. A documented receiver match does not establish compatibility with every opener.