Comcast Cable Box Does Not Power On

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Answer #1: Posted by freginold on October 17th, 2014 6:16 PM

freginold

Member since:
December 20th, 2011

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Hi, first check the power to the box, make sure the plug is attached securely and the outlet has power. Then check the vent on the box to be sure it is not blocked -- if it is, the insides may have overheated. Check and clean the vent and fan, then try to turn it on again. (If the box feels hot, wait for it to cool down a bit then try.) If you can’t get inside the box to clean the fan, you could spray it with some compressed air.

If the box still won't turn on, you will probably need to replace it.

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