Question about Pioneer VSX-D511 Receiver

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Internal cooling fan not spinning

Hiya I have a pioneer vsx-d511 receiver and have just noticed after 5 years of use that the internal fan never spins up. I have noticed that it has three wires going to it, so I was wondering whether it was temperature or volume controlled. However if it is supposed to spin at all times, can a replacement fan be found? Thanks Sam

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  • majinbuu Oct 03, 2007

    Since you didn't post my email solution to this problem, here it is again for others in the same boat.

    The fan is thermally controlled, it will only switch on when the unit becomes extremely hot. Otherwise the built in heatsinks will dissipate the heat. Therefore, unless you use the receiver with high volume levels for extended periods of time the fan may never turn on.

    Again I say that this site is very snobbish. I am sure some of the users here could have answered this question easily, however I had to contact pioneer directly for an answer. Ban me I dont give a crap, this site stinks. I bet I would have gotten an answer if I had paid for the premium service.

    I post this for the benefit of other users who have the same problem.

  • erik51 Nov 10, 2007

    i agree with you. i noticed my receiver gets hot to touch and the fan doesnot turn on can this be fixed? and how?



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There should be a thermistor mounted on the heatsink which will trigger the fan. The fan will not likely turn on if you are using your receiver for 2-channel music. Try using all amp channels by playing a DVD in DTS or AC-3 audio mode and crank up the volume - lots of bass will do the job. You can place a piece of tissue paper near the vent so you don't have to use a flashlight to watch and wait until it turns on. My receiver takes about 3 songs from the Eagles DTS DVD at high levels before the fan would turn on. As soon as the temperature is lower than the limit, the fan would turn off.

Posted on Feb 02, 2008


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Clark, you MIGHT have a simple problem here. Let's keep our fingers crossed... This problem generally has more to do with the speaker WIRES or their IMPEDENCE than anything else, even though the receiver displays "AMP ERR." (Technically, it IS an amp error, but the source MAY not be the amp!) The very FIRST thing we need to do is check to make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. (Pioneer says 6, but that's not necessarily a good recommendation, particularly if you listen LOUD.) Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) [NOTE: Your receiver has internal overload protection systems to prevent permanent damage. On SOME Pioneer models, these can be "reset" but you can't do it yourself. Your dealer or authorized service center must do so.] But, before you take it in for service, there is one more "test": check for shorted and/or mis-connected/disconnected speaker cables/wires. 1) Visually inspect connections at the receiver AND speakers. You might find something obvious! Look for bare wires touching one another. Again, you must look both at the receiver, AND at the speakers. 2) If everything looks okay, then disconnect ALL of the speakers at the receiver; and reconnect and test them one at a time (at relatively low volume.) For example, reconnect the left front speaker, test the system; THEN add the right front, test the system, and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Hopefully one of these simple fixes will get you up-and-running. Good luck!

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