Chapter 4: Preventive maintenance and testing 
VM-1 User Guide  43 
  Frequency 
voice/alarm communication equipment  Annually 
  Annually 
  Annually 
  Annually 
  Annually 
Fire extinguishing systems or suppression systems
  Annually 
  Annually 
notification appliances  Annually 
Textual audible notification appliances (speakers)
  Annually 
Visible notification appliances
  Annually 
Supervising station fire alarm system transmitters
  Annually 
[1] Test control equipment quarterly when it is not connected to a supervising station. 
[2] Replace batteries every five years, or sooner if conditions warrant. 
 
Troubleshooting 
Problems with your VM-1 life safety system can generally be classified in two 
categories: application programming problems and hardware (including firmware) 
problems. Many times hardware problems are identified by the system itself. 
Application programming problems are typically suspected when an incorrect 
response happens, or when a response fails to happen or happens at the wrong 
time. 
Only your system service provider or a qualified technician with a complete 
understanding of the system hardware and functions should perform system 
servicing and repairs. Refer to “Service provider information” on page 40 for their 
contact information. Refer to the VM-1 Technical Reference Manual 
(P/N 3101890-EN) for detailed troubleshooting information. 
Before contacting your service provider, make note of the following: 
•  Messages shown on the LCD screen 
•  Construction in the area that may have caused the problem 
•  Adverse weather that may have caused the problem 
•  Damage to any equipment