First, let's check to see if your remote is actually functioning properly.
Pull out your cellphone.
Activate the camera. The idea is a Cellphone camera can see a remotes IR light but a human eye cannot.
Point your remote's IR blaster to the cellphone's camera while you aren't holding and buttons down.
If you see flashing where the IR is, then you know already that the remote has a button that is stuck.
Now, if you don't see any lights, start pressing buttons, and you should see a blinking whenever you push a button. If you don't then the remote is completely bad.
Now if you have verified that the remote responds properly to each button.
Please provide the remote's model number, and perhaps we can find a reset for it.