At some point, all Comcast cable television customers face a moment when the Comcast remote control doesn't work. You might find that your Comcast remote won't change channels, other buttons won't work, or the remote stops working entirely. Remote control issues can result from one or more possible causes. Some of these causes are ones you can troubleshoot quickly on your own, while other causes may require contacting Comcast to have someone visit your location to professionally troubleshoot or repair your equipment.
Troubleshoot the Power Supply
When your Comcast remote is not working, it may just have dead or low charged batteries. With one or more dead batteries, none of the buttons work, and any LED on the remote won't turn on when you press buttons. With one or more low charge batteries, an LED may still turn on or one function, such as turning the volume up and down, may work. Remove the current batteries, replace them with new batteries and try the remote again.
Troubleshoot the Sensor Signal
All Comcast remote controls communicate with receiver boxes via infrared, or IR, signals. An interruption to the signal can cause the channel button to be unresponsive. Move any obstructions, such as people or furniture, between you and the receiver and try the remote again.
If an obstruction isn't the issue and your Xfinity remote is not working still, the angle at which you're holding the remote may be the problem. Hold it almost horizontal to the receiver and, if necessary, move the receiver to a higher or lower position to correct the angle.
Troubleshoot Comcast Remote Problems
When power or sensor signal issues aren't the cause, user error involving the buttons is often the problem. Check that you're pressing only one button at a time and that you're pressing the button firmly. If you use the "All On" button, or you recently used an auxiliary device such as a DVR, DVD or Blu-Ray player, you may have the remote set to the TV or auxiliary mode instead of the cable mode. Align your remote with the receiver, press the "Cable" button and then try the remote again.
Troubleshoot Your Cable Receiver
Sometimes what seems like Comcast remote problems is actually related to the receiver instead. You can determine whether this is the case by power cycling the receiver. Press the "Power" button on the receiver to see if you can power it off. If the "Power" button works, press "Power" again to turn the receiver back on, unplug the receiver at the surge protector or wall socket, wait five minutes, plug it back in and then try the remote.
Consider Professional Troubleshooting
When do-it-yourself troubleshooting fails to fix the problem, your Comcast remote or receiver is likely malfunctioning, and you will need additional assistance from a professional Comcast agent or technician. You can either contact Comcast by phone, try the Xfinity website's online chat support or visit an Xfinity store location near you to get help. An agent will be able to help you reprogram and test your equipment. If the remote or receiver won't work, the agent can help you order replacement hardware or schedule a technician visit for on-site troubleshooting.