FRANK POWELL

I read on here that someone has the same problem as me 2004 307 The central locking locks and then opens immediatley when I try to lock the car by remote.by key it seems ok I dont think its an electrical problem as all seems to be working except when I listen closely to each door as it locks then unlocks there's a good positive "click click" from all doors except the drivers door. I'm not sure what tell tale signs to look out for. I'm sure that some lever is meant to de-activate and activate the door handle but nothing appears to be moving at all when I press the remote.can anyone help as im pulling what hair i have left on my head out