Actuator and door lock issues

[SirHenry]

Hi guys,

I have a S1 Classic and have an issue with central locking not working by remote.

Manually locking and unlocking works fine no issues at all.

Previously when I have done actuators usually it beeps and you pull the handle of one of the doors and it unlocks you know which actuator is gone.

Problem I have is when manually locked all doors remain locked.

Is this still an actuator gone or maybe battery related (its about 3 1/2 years old and I'm waiting for it to go one of these days)

Cheers,

Chris