DTI Sears 550 Trouble
| Keypad will beep every 15 seconds if trouble, silence by pressing PGM key for 3 seconds | |
| Zone Trouble | Flashing zone light + keypad beeping |
| Battery Trouble | This system cannot detect low panel batteries |
| AC Trouble | AC Power light will flash, if off system is powered down |
| Reset Smoke | Press “Fire Test/Reset” switch inside of main control panel |