Critical
1 Devices that report this code0x2133
Fire system communication loss.
0x2133Fire system communication loss.Critical— level 3
Cause
No signal received or life signal unchanged from fire system.
Recommended fix
Send faults to EMS, limit power, request lower high voltage; if command not received within 5s, cut off the main circuit relay.
Source:
FLS-ES232LC-S.pdfCompiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.