CL9 2005 Central Locking issue

Hi Guys
Got an issue with the driver's door central locking.
Intermittently but most times anyway the door will not lock or unlock with the remote.
You can see the knob starting to move up or down but then it stops . All the other doors lock and unlock and you can still operate it with the key OK
Damn nuisance though as you never know when the door is actually locked .
Any hints appreciated thanks

it's the lock actuator, common issue for all accords

Buy a replacement actuator for like $35 on ebay and just get it replaced.

Thank you, will check eBay today