Like most electronic devices, your receiver generates heat, and if it isn’t well ventilated, it can sometimes overheat, which can cause it to freeze or lock. Your receiver can also be frozen after an electricity outage. The first thing to do if your receiver is frozen is to simply wait a moment to see if it refreshes.
However, if the problem persists and you still can’t change the channels, follow these steps to reset your receiver:
Unplug your receiver from the electrical outlet and wait 15 seconds.
Plug the power back in and wait approximately 60 seconds.
Turn the receiver back on.
If you aren’t able to resolve the issue on your own, please contact technical support.