If the Smoke is Latched you will need to perform the Smoke Power Reset —- Press the ELK key, press the 2 key, screen should display 2-Reset Smoke Detectors >, Press the Right Arrow Key which will drop power from +SAUX and Zone 16 for 5 seconds. After the Smoke Power Reset is complete look in ElkRP under the Status Screen to see the Voltage on Zone 1. The Voltage should be ~7.5V. Check your programming for Zone 1 to make sure Wiring Type = 5 Fire 4-Wire Smoke. Enter your code a second time to acknowledge the Fire Trouble condition.