Question about Hitachi 50V500 50 in. HD-Ready LCD Television

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Fan Runs all the time

The fan on my Hitachi runs continuously, even when the set has been off for hours. Any Ideas on how to proceed?

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Re: Fan Runs all the time

The fans run for an additional minute or two after the set is turned off. If the fan runs longer than that, then, either the 12 volt relay is stuck or the transistor that controls that relay is shorted. To find a local authorized servicer in your area, contact:

Posted on Jun 24, 2007

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H ave a sony kdfe60a20, just replased bulb and fan for bulb, watched for about 2 hours then tv went dark. Now I have a blinking red light. blinks 4 times pause 4 times continuously until I unplug the tv....

4 times red standby light indicates problem with exhaust fan that is not running for some reason.
Recheck fan that you replaced and make sure its connector is plugged properly and it running freely.
4 times red light blinking is fan error in this tv.

Nov 03, 2010 | Sony KDF-E60A20 60 in. LCD HDTV

1 Answer

No picture, sound or fan noise

Call the maker of the television and ask for common problems, check their web site or goggle it for others with the same problem. Let me know what it is.


Feb 01, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

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Our 4 year old Hitachi tv fan has been very loud. It even turned off a couple times so we blew some air on it. It's still so loud that we need to turn our volume up. Can this be fixed?

I would hesitate the blame the noise on a fan. It could very well be the Color Wheel in the Optical Engine making the noise. If this is the case , the Optical Engine would have to be replaced. This is a very expensive repair and I recommend you call Hitachi to see if they could help you find a Service Repair Facility near you to verify the cause of the noise and maybe even help with repairs. Their Customer Service Number is 1800-HITACHI.
I hope this helps,

Oct 25, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

I turn on my hitachi 50v720 tv it runs for 5 minutes shuts off and the temp light comes on.what could be going on?

It's most likely the cooling fan is not operating either due to the supply line for the motor missing or the fan itself at fault. This means when the lamp reaches a certain temperature (after 5 minutes) the temperature sensor should then active the fan to keep it cool, if this does not happen it will go into protection 7 shut down.

Sep 16, 2009 | Hitachi 50V720 Television

1 Answer

Cooling fan won't turn off.

this set has more then one fan; one fan will run all the time to cool the digital circuit board---if it is the actual LAMP fan then you have a problem---the digital fan is very small and not located near the lamp.

Aug 06, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

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The lamp fan is making a vibration/noise

if the frequency of the sound changes more likekly you have a bad color wheel, if a certified service center is working whit it, call hitachi costumer service problably they will pay forr the light engine(where the color wheel is located)

Dec 02, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer


It sounds like something internal is off. It is sensing that it's still over heated which its not which is why it continues to stay on well after the cool down period. That can happen to the older generations of this model since it was not yet fixed. There is a huge possibility that it might have a firm ware upgrade to fix that problem for free. You can contact the manufacturer regarding that information either they can send it to you, mail a CD with it on there, or you can click onto it off of their website if it's available on there immediately.

Have you unplugged it for a while then plugged it back into the wall? Some times that can fix the problem. Chances are, if it continues to stay on that it's something internal that can not be fixed since it might be a really small internal chip or board.

Let us know how it goes. You can always contact the manufacturers auth. service centers since they are familiar with the technology you currently own. Most places will look at it, and if its totally non fixable allow you to just discard it otherwise charge you nothing. If it needs to be repaired it depends on where you bring it, it could be per hour or potentially a flat rate plus costs of parts.

Let me know how it goes. I'm eager to hear if the unplugging it might reset it. That can help some times in the product.

Also, any other weird issues going on with it? Vertical lines on the set or blots here and there on the screen that appears to be internal? That can really tell that it might be the mother board slowly going out.

Oct 28, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

1 Answer

Fan is Noice now

Fans are easy to change and are a standard low cost part.

Feb 09, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

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