LiftMaster TX4UNIS-02 Remote

Your LiftMaster TX4UNIS-02 at a glance

Four programmable channels; 433 MHz family.

TX4UNIS-02 battery & holder

One 3 V CR2032.

Programming your TX4UNIS-02

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

Most 433 MHz Chamberlain/Motorlift/LiftMaster receivers; explicitly excludes LM50K, ML510 and HE500AN.

Not a complete operator manual; receiver-specific instructions remain necessary.

If your TX4UNIS-02 is not working

Checks for TX4UNIS-02

• Retry if the window expired or exit was omitted. Check receiver compatibility before retrying.

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.

TX4UNIS-02 repair, parts & replacement

No exact replacement or part mapping has been confirmed for this page. A similar-looking remote, matching frequency or familiar model family is not sufficient evidence of interchangeability.

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.