NM35 Stagea Alarm intermittent fault?

[Tumble]

As the title suggests, I'm having intermittent problems with my alarm. It never goes off for the sake of it, but 5/10 times it goes off after opening the door having just used the remote to unlock.

It can be fine over night, and then play up after being locked for just 5 mins

I have one key, there does look to be something for an immobiliser, however I don't have a fob for it and it starts first time any way with out fob. Not sure if this is stock, or aftermarket.

Thanks in advance for any help.

Tom

 

 

 

[Tumble]

So... I think I have made headway. What seems to work is pressing the unlock button on the remote twice before opening the door. I.E once to unlock, once to deactivate the alarm.