Display shows “19”; wireless keypad will not program or operate the opener.

Safety first: Use a stable ladder when accessing the opener head for programming.

• Replace keypad battery: Install a fresh 9V or coin‑cell battery as specified for your Marantec keypad.
• Confirm compatibility: Verify the keypad is a Marantec‑compatible model for your opener’s frequency and coding system.
• Clear and re‑learn devices: On the opener, clear all remote/keypad codes (per manual), then re‑enter learn mode and program the keypad following the exact sequence (enter PIN, press “Enter,” then press opener learn button, etc.).
• If keypad still not recognized: Test with a known‑good Marantec remote. If remotes work but keypad does not, replace the keypad. If neither work, the receiver/control board may be faulty.