Garage door opener operates by wall button but not by any remote controls; no error code shown.

Safety: Keep clear of the door while testing remotes.

• Check remote batteries: Replace batteries in all BFT remotes (e.g., MITTO) and ensure LED lights when pressed.
• Verify compatibility: Confirm that remotes are compatible with the installed BFT receiver (frequency and coding).
• Reprogram remotes: Enter receiver programming mode on the BFT control board or plug-in receiver and learn each remote following the manual.
• Check receiver LED: When pressing a remote, the receiver LED should flash. If not, the receiver may be faulty.