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Ac wont power on . fuse on board keeps blowing out. there power going everywhere else but board.

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You have short somewhere. Take all low voltage wires loose outside and replace the fuse. Sometimes you have wire touching or someone took a weed eater to your wires. Ruiss

Posted on Jul 31, 2009


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03 ford explorer every time I use the ac in the truck my fuse keeps blowing its the number 41 fue under the hood

sounds like you havea short to ground when ac is on and the fuse blowing is the sign of the short if it only blows when the blower come on the un plug the blower motor and try truning ac on see if fuse blows if it dont the replace blower motor if it do then check the resister do same for it tell you find were it dont blowthe fuse then thats were your problem is going to be

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I get no power indications to my Aqualink. I checked the circuit breakers, Any idea what is going on?

check back of PCB board fuse might be blown if keeps blowing fuses unplug all auxs then plug in 1 at a time till it blows thats whats wrong or check powersupply should be 24 volts ac on back board


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AC fuse keeps blowing on my 1998 ford crown victoria

The reason a fuse blowing may be because of a short circuit. And you should check any wire connectors that plug into the pc board.

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Power cord fuse keeps blowing

Thats usually caused by a shorted HOT transistor on the Deflection board or bad diodes on the AC input board ( where the fuse is ) you can get replacement boards and tech assistance from

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Black screen no video no audio suddenly now

This set is a 50" plasma. first check the AC power fuse on the filter board then: if it is bad: check the power supply by marking and, removing all the cables; (so you can put them back in the correct spot) except the filter board to power supply cable; that connects to the Power supply board. Then: replace the blown AC fuse and, re-power: If the power supply blows the fuse: again, the power supply is bad and, must be replaced or, repaired. If the fuse does not blow: turn off the set then: on again, reconnecting and, disconnecting each board cable in turn, untill the fuse blows again this cable leads to the bad board; replace or, repair the board that blows the AC fuse every time the bad board is connected, irregardless of which other cable to the power supply may be connected also; or, not.

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2003 Cavalier - driver floor board wet - what is happening? All of a sudden now the horn doesn?t work either (fuse still good) ? and the tail lights on that side keep blowing too. Is all this related?

you have a plugged up ac drain line. if you look under the dash you should see a box, near the blower motor, that box is also a condensor and traps water from the ac. there should be a small hose going through the firwall under the dash. prepare for a mess. take the hose off and water will spill everywhere. but no worries ITS ONLY WATER!. the hose is more then likely KINKED shut and can be fixed by replaceing it or cutting the kink out and splcing back together

Oct 24, 2009 | 1999 Honda Accord

1 Answer

Fuse keeps blowing

If fuse keeps blowing that means that there is a shortage on AC wiring or switch controlling the air conditioner.

Also an abnormal power draw from AC caused by an internal fault on AC can cause the fuse to blow.
Test wiring and switch with a voltmeter, the most common is that there is a short to ground between wiring and car body somewere.

Apr 29, 2009 | 2000 Chevrolet Malibu

1 Answer

Blowing fuses in power supply

One thing to check, would be the filter capacitator that is on the front circuit board. They are known to become shorted. The cap is fairly large, and may be mounted on the side of the circuit board that faces the front panel. Clip one lead, and apply power. If the fuse does not blow, then that is it. A second possible component, is the polarity protection diode, that is near the power jack, next to the fuse. If it is shorted, then the fuse will blow every time.

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