Dear all, We are having a problem with our house alarm, as follows: On setting the alarm - Accenta G4, professionally fitted around 8 years ago - (when leaving the house), the main control panel is showing solid red lights on two of the PIR sensors ('as if' they are sensing movement in the rooms where they are located). There is no movement in those rooms. We have also looked at the actual sensors at this point and the red light on the sensors themselves is not 'on' (to indicate the seniors has picked up movement), but the red lights for those sensors on the panel remains solid on. The actual sensors themselves do seem to work as the red lights on them does come on if we move in front of them. I've changed one of the affected PIR sensors, but this hasn't fixed the issue. I've also checked the backup battery in the actual alarm unit and it's showing good (constant 13plus volts). The issue is only resolved if we 'omit' those sensors and leave those rooms unprotected. Any input, advice or suggestions from those forum members in the know would be much appreciated. Thanks in advance.