Nice garage door opener shows E6 and remote controls do not operate the door, though the wall button may still work.

Safety first: Disconnect power before inserting or removing plug‑in receiver modules.

• Check antenna: Locate the thin antenna wire or external antenna on the Nice control unit. Ensure it is intact, not cut short, and routed away from metal surfaces where possible.
• Inspect receiver module: Many Nice openers use plug‑in radio receivers (e.g., OXI, SMXI, OXIBD). Remove the module, check for bent pins or corrosion, and reseat it firmly.
• Reprogram a remote: Follow the Nice instructions to add a remote (press the receiver's programming button, then press the remote button). If the receiver LED does not respond, the receiver may be faulty.
• Test with another remote: Use a known‑good Nice remote of the correct series (e.g., FLO, FLOR, ERA, INTI). If none work but the wall control does, suspect the receiver or antenna.
• Replace receiver: If E6 remains and no remotes can be learned, replace the plug‑in receiver with a compatible Nice model and reprogram all remotes.