A:Answer This unit runs hot i noticed (I have a 76 marantz vintage I use for a 2 channel set up and it’s not nearly as hot ..the Sony 5.1 I put without much ventilation space on a shelf and I feel heat after a couple hours that never seems to go above a certain temp ,I have had it go into protect .only a few times and I feel like it was in error or maybe even a voltage spike /dip from my house supply not Sonys problem, if you have this thing open air and it’s tripping from heat something is def wrong and u have a warranty depending on the condition you bought the open box .Best buy has been fantastic with any return or issues I’ve had in the past I even got a brand new tv after my open box purchase (excellent) had no paperwork manual or plug in the box ,I took it back and right at the door the podium guy said ok drop it right there ,told someone get him a brand new one he should have gotten excellent condition and didn’t .i was out in five mins with a brand new tv .so if you should show up with the unit boxed and all tell em your issue ,maybe the a bad sensor or even a power supply issue ,idk how u can be sure hear causes the protection mode make sure first all your speaker connects are good ,proper polarity no strands touching chassis or across terminals as this will and should trip very quickly mine did during set up and I had no damage,protect mode is excellent and my gut says it’s not the unit but something in the set up and protect is tripping bc it should …I’m no Sony expert but I have been setting up audio and some video equipment my whole life and have working knowledge of how it all works ,my gut is usually right
