Remotes that are used with a digital cable box that is provided by Comcast may be a universal remote which can be used with other components. These include a television, a stereo receiver or a DVD player. If you have replaced one or more these components, the remote might require a new code. When you are having trouble setting a code for the remote it may need to be reset back to the default settings.
Take the old batteries out of the remote and insert new ones. Using fresh batteries will ensure that the remote is at full power.
Press and hold the "Setup" key for at least three seconds.
Enter code "980" on the keypad, once the light on the remote blinks twice. When the light blinks four more times the remote has been reset.
Repeat this process for any Comcast remote that needs a user reset to go back to the default settings.
Press the "Setup" button for at least three seconds or until you see the light on the remote blink twice.
Enter code "981" on the keypad. The command is successful and the remote has been reset when the light blinks four more times.
Repeat this process for other Comcast remotes that need a factory reset.
Using the Factory Reset option may prevent the remote from working with the cable box or DVR.