I called to schedule the semi annual fire suppression service on the kitchen Range Guard I was at the other location for them and wanted this on the schedule. I arrived and did the initial inspection of the fire system. I did not see any defects so I put the system in test mode. I put a test link in and tested it for the ability to work when needed. I did not find any defects so I put new fusible links and foil seals in the system. I put the system back to operational mode. I wrote the report and let them know I would be back in 6 months to re-inspect the system per NFPA code.