The instructions for code retrieval are missing a step. I've inserted it here as step 2A.
In order to retrieve the stored codes:

1. Press and hold CODE SEARCH button for 3 seconds until the LED stays on.
2. Press the device button. (eg TV, VCR etc.)
2A. Press and release the CODE SEARCH button, LED blinks off and back on.
3 Press each of the number buttons until the LED blinks off and back on once. This indicates the first number of the stored code.
4. Repeat step 3 for the second and third numbers of the code.
5. Once the third number has been found the LED will turn off.