Accenta alarm - tamper light permanently on, will not reset?

Recently knocked the wall down between my dining room and living room and there was a PIR in each room. had to disconnect both of them, whilst work was carried out. Once complete, I reconnected them back EXACTLY as they were before (im pretty sure of this lol), they seem to be activating as the light comes on when there is movement in front of the PIR, yet the keypad has all zones lit up and the tamper indicator is on. Cannot put my code in or press the reset or do anything really. Checked all the fuses in the control panel upstairs and they all seem to be OK, power reset the control panel upstairs, the alarm went off, so i put in my normal code, which switched the alarm off but then the keypad just went back to its previous state of having all zones lit and the tamper indicator lit. Can anyone help?