Remote controls do not program; display shows E10 when attempting to learn a handset.

Safety first: Work from a stable ladder when accessing the opener head. Disconnect power before opening the housing.

Steps:

• Verify remote compatibility: Confirm that the handsets are the correct frequency and coding type for your specific Henderson opener model.
• Check antenna: Locate the thin antenna wire exiting the opener housing. Ensure it is intact, not cut short, and hanging freely away from metal surfaces.
• Reduce interference: Move Wi‑Fi routers, baby monitors, or other RF devices away from the opener if they are very close.
• Inspect RF module: Open the housing and locate the plug‑in Henderson RF receiver module (if separate). Reseat it in its socket. Look for corrosion or damage.
• Test with known‑good remote: If possible, try programming a remote that is known to work with another Henderson opener. If E10 persists, replace the RF receiver module.