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Hello there I trying to fix this a/c it a dueling hi unit PAC CN120E I put on a new fuse it blow once I plug it in I disconnect the compressor and fans and still blows out

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If nothing is connected to your line voltage than you have a short somewhere in that circuit. If I had to guess it would be in the disconnect or main panel, possibly melted wire off the breaker or one simply came loose. But as I said, pull the high voltage completely out of unit, cap ends and replace fuse. If no problems than it's inside machine. Good Luck!!

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Posted on Apr 30, 2017

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Hello question on this ac if u still have it i replaced my board and lost where wires go there brown red and to blue wiresvlet me no thanks if u can i see in pic where 3 wires go but not the other blue one

Posted on Apr 30, 2017

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A fuse blows, because something in the system is pulling a too high current. Can be in the electronic circuit, but also could be a shortage in a motor or a bad capicitor. As a tech I use measurement tools and a manual, my education and my skills, I got by years of learning and experience. I still have not developed the skill to guess what is wrong, without measuring myself. Sorry. Perhaps you also should consult a tech?

Posted on Mar 31, 2015

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Posted on Jan 02, 2017

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I cannot tell from which country or area of the world you are, but in the USA, your 12,000 btu a/c unit would take a special plug and electrical circuit in many homes or apartment, because it is so large.

Today, most circuits are protected with a 15 amp circuit breaker, which can usually handle only a 5,000. or 6,000 btu unit. The next size up it often a 7,500 unit, and that is a lot for a 15 amp circuit .Some older homes have a 20 amp circuit breaker, which can handle up to a 8,000 btu a/c.
Before you start a fire in your house, have an electrician check all this, and see what is going on.
One reason I am talking about such small a/c units it that usually, household electrical circuits have other loads on them besides the a/c.
Be blessed.

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