232 degrees? Normal? Uh... no (unless you live on Mercury/Venus/Georgia in August).
What you have there is a hockey puck hot enough to end the game when the ice melts. RMA or Out The Window (into a bucket of water - Only YOU Can Prevent Forest Fires!). Select the one that is most applicable in your situation.
Does it feel warm/hot to the touch? Maybe it's incorrectly reading the temp.
Like you I was wondering how accurate it's measurement is. 6 months old, never got a temp warning until a few days ago so I never checked it before. After it was unplugged for 2 hours it was slightly warm. This is it after 10 minutes of idling, feels like a frying pan. Sure seems to be working hard for just idling on the secret menu.
If you are still unable resolve the issue, feel free to send me a PM with your Roku account email address and the serial number of your device from Settings>System>About. I'll follow up directly to assist you more from there!
I popped off the cover and looked. No heatsink, no fan, no nothing. Happily, Thanks to this Forum and RokuDanny-R, I was contacted by Roku. They called me and left a message and also sent an email. I'm totally shocked! They asked for some basic info and replied saying I must have a defective unit and that they are shipping me out a replacement.
I bought a premier last week. I used a longer HDMI cable. The first night it played intermittently.The unit was too hot to touch. I switched back to the supplied cable and the temp went down. It's still pretty hot to the touch. I'll probably return it, I'm still in the BB return window. Strange. I just checked the temp after an hour. 99C. I'm curious. What is the correct operating temp range for these devices?