What does 'FUSE x FAULT' mean on my Pyronix PCX 46 Security System?
- SStephanie FernandezAug 27, 2025This message indicates that the identified fuse has failed, or the output protected by the fuse is drawing excessive current. Note that Fuse 1 protects PGMs, Fuse 2 protects the BELL, Fuse 3 protects AUX, Fuse 4 protects the BUS, and Fuse 5 protects the BATTERY. 












