98 Nissan Micra Central locking problem. Can anyone help?

Hi there My Dad has a 98 Nissan Micra. The problem is. When I try to lock or open the car with the remote central locking button ( button is seperate from the key. Not part or the key ) it just locks and then unlocks the car instantly. But when I use the Key in the drivers door lock the central locking works fine. It they anything I can do to get the Central locking working again through the remote. Thank you all for reading. Hope someone can help. Cheers.|||hi there it seems there is a fault in one of the lock solenoids or wire leading to itwhen you lock car with key check all lockes to see if they are locked especially the boot and if it has one the petrol cap lockif one of the solenoids does not work when trying to lock car then it sends a signal to the relay which tells the relay to unlock doors and if it is the boot lock or petrol cap lock that is not working then just disconnet it until replaced and you can use your remote control jock