Common fault guides
These pages target specific problems and link back to the relevant wiring diagrams and troubleshooting hubs.
CCTV Camera Has No Image
A step-by-step fault guide for CCTV cameras that show no image on the NVR or monitor.
PoE Camera Keeps Dropping Offline
Diagnose intermittent PoE camera dropouts caused by cable, power, switch budget, weather or network issues.
NVR Not Detecting Camera
Fault guide for NVRs that fail to detect or add an IP camera.
Intercom Door Strike Not Unlocking
Troubleshoot an intercom system where the door station or monitor works but the electric strike does not release.
Hikvision Intercom Monitor Not Ringing
General troubleshooting steps when an IP or 2-wire intercom monitor does not ring.
Alarm Zone Fault Will Not Clear
Troubleshoot alarm zones that stay open, faulted or in tamper.
PIR Sensor False Alarming
Fault guide for PIR motion detectors that false alarm or trigger unexpectedly.
Maglock Not Releasing
Troubleshoot magnetic locks that will not release from access control, intercom, REX or emergency release devices.
OSDP Reader Offline
Fault guide for OSDP readers showing offline or communication errors.
Wireless Bridge Connected But No Camera Image
Diagnose wireless bridge links where the bridge appears connected but the camera image is not available.
Solar CCTV Camera Drops Out Overnight
Troubleshoot solar or battery-powered CCTV systems that fail overnight or during poor weather.