| bF | Long Range Radio failure (Cell backup) |
| Check 91 | Generic trouble display |
| Check 100 | Wireless Receiver failure or keypad tamper |
| Check 103 | Long Range Radio failure (Cell backup) |
| Check 104 | 4285 or 4286 Voice Module failure |
| Check 107 | 4219/4229 Hardwired zone expansion module failure (Zones 9-16) |
| Check 108 | 4219/4229 Hardwired zone expansion module failure (Zones 17-24) |
| Check 112 | 4204 Relay Module failure (Module 1) |
| Check 113 | 4204 Relay Module failure (Module 2) |
| NO AC | AC Power Failure |
| BAT | Panel Battery Low |
| BAT xx | Wireless zone low battery (where xx is the zone number) |
| LB | Keyfob Low battery for Locally programmed Keyfob |
| Check 01 to 34 | Zone is not communicating with panel |
| Check 49 to 56 | Keyfobs are programmed incorrectly |
| D1 | System is in wait mode, system may have an internal problem |
| System Busy | System is in wait mode, system may have an internal problem |
| CA | Alarm was canceled, this is not a trouble |
| Canceled Alarm | Alarm was canceled, this is not a trouble |
| CC | Panel is being downloaded by Tech Support |
| Modem Comm | Panel is being downloaded by Tech Support |
| 94 | Telephone Line Failure |
| Telco Fault | Telephone Line Failure |
| 70 | Siren supervision failure |
| 90 | RF Jam detected |
| 00 Bat | Wireless keypad low battery |
| Cd | Phone test okay |
| dO | Dialer off |
| dd | Walk test is active (Code + 5 + 0) to exit |
| dC | Download complete |
| dF | Download failed |
| Alarm xx | Zone is or was in alarm where xx is the zone number |
| Fault xx | Zone is faulted where xx is the zone number |
| Check xx | Zone is not communicating with the panel where xx is the zone number |
| EA |
Exit Alarm, this is not a trouble, customer armed system then left and didn’t close door before delay expired |
| FC | Fail to Communicate |
| OC | Open Circuit, bad keypad wire |
| Beep every 40 sec | System is in Test Mode (Press Code + 1 to exit) |