How to troubleshoot FRIEDLAND SA3 PLUS control unit when the power LED is off?
- LLisa GibsonAug 20, 2025
If the control unit's power LED is off, there are several things to check: * First, ensure that other electrical circuits are working, as there may be a mains power failure. * Verify the mains adaptor is properly plugged into the socket and the socket is switched on. * Make sure the DC jack plug from the mains adaptor is securely connected to the control panel. * Inspect the fuse or MCB in the consumer unit that serves the control panel's circuit.




