DTI Sears 550 Codes

Master Code is programmed by installer, it cannot be changed by the user
Secondary User Codes will erase if panel loses power
Duress Code appears to be User Code 5

Add Code 1. Press PGM Button
2. within 5 seconds enter Master Code
3. Select User by pressing 1 (User 1) or 2 (User 2) or 3 (User 3)
4. Enter new 4-digit code

Delete Code 1. Press PGM Button
2. Enter Master Code
3. Select User by pressing 1 (User 1) or 2 (User 2) or 3 (User 3)
4. Do not press any keys for 10 seconds and code will be deleted