Installed replacement V6 box in bedroom. Now living room V6 box not working
The V6 box in my Sons bedroom recently malfunctioned. We were sent a replacement yesterday. It has been successfully installed but now our living room V6 box is showing error 7400. I can’t seem to get in touch with anyone about this. I have already tried all of the recommended options like turning off, unplugging etc but no luck. Help!