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Why does it display "protection fan"?ronsimpson said:Probably not the fan.
If the fan failed then the temperature will be high and something will fail. That something will pop the fuse.
Lol, damn. How can i test the fan?I really don't know but maybe the fan failed and that is the last error it received.
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I just typed "Sony Receiver STR-DA555ES fan error" in to a search engine and you are not alone.
What do you mean?Probably
Trouble shooting by long distance is hard.
Oh.I can't look inside you receiver.
I can't test parts with a meter.