DTI Sears 660 Codes

System holds 7 codes, secondary codes erase if power loss
Add Code * + Master Code + User (1 to 7) + New Code
Or
Add Code 1. Press PGM Button
2. Enter Master Code
3. Press (1-2), (3-4) or (5-6) button for which code to delete
4. Do not press any key for 10 seconds and code will be deleted