Remote controls have very short range or work only when close to the opener.

Safety first: Use a ladder safely when accessing the opener head.

Steps:

• Inspect antenna: Ensure the Henderson opener's antenna wire is fully extended, not coiled, and not cut short.
• Relocate interference sources: Move Wi‑Fi routers, LED drivers, or other electronics away from the opener if they are very close.
• Test with fresh batteries: Replace batteries in all remotes.
• Upgrade receiver: If range remains poor, consider replacing the Henderson RF receiver module or adding an external antenna kit.