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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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: customerservice.ce@hhea.hitachi.com

Posted on Jun 24, 2007

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Most forced air units have a fan / high limit switch. There is a setting on the switch for the fan to turn on and a setting for the fan to turn off or it has a setting and a differental switch for it to turn off/on. Example - the fan comes on when the temp in the heat exchanger reaches 110 degrees F and will shut down at 95 degrees F after the thermostat is satified...this would hav a differental of 15 degrees F. It may be set to low and the fan continues to run long after all of the heat has been removed from the heat exchanger. This in turn will cause cool air to be coming out of the registers.

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Thanks and 4 thumbs up for the hero would help.

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1 Answer

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