Alarm code121
Duress indicates the system has detected a duress situation. The manual lists no action for this code.
- Model
- KOPPEL K5305-1V1
- Display shows
- Duress (121)
- Type
- Alarm code
- Source
- Manual p. 67
What 121 means
Duress p. 67
If 121 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact KOPPEL service.
This page summarises what the manufacturer’s manual says about 121; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with KOPPEL. Found a mistake? Report an error.
