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What is the value of varistor sitting beside the fuse of Wii power supply? I have a blown fuse and burned the varistor as well. I need to replace the varistor but dont know the value of it.

Wii varistor value beside the fuse?

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: wii power supply

To reset the AC adapter you need to unplug it from the wall outlet and the Wii console and wait at least two minutes. Plug it back in and it should come on. If you have it plugged in a surge protector with other appliances, the other appliances may be interrupting the adapter, causing the power to go off.

Posted on Dec 12, 2008

jyackle5
  • 8197 Answers

SOURCE: my wii won't turn on and there is no red light.

You could reset the AC brick by unplugging it from both the wii and the wall outlet for 90 seconds.

Posted on Mar 12, 2009

  • 3 Answers

SOURCE: wii will not turn on.

Unplug power from BOTH ends for 2 full minutes, then reconnect. Red light should be back, and it should work fine. Let me know!!!

Posted on Apr 24, 2009

  • 21 Answers

SOURCE: Wii power supply problem

I would buy a used/new one from the game store. If lightning got it, it's going to have fried more than just a "fuse".

Posted on Jul 26, 2009

  • 1525 Answers

SOURCE: my wii blew a fuse and i want to know what to look for

hello the fuse inside is made of glass if you open the wii up you should see the power supply the fuse might have a cover over it, if the fuse is black it's blown, if you put a nother 1 in and blows again the then you have a dead short somewhare make sure the power off. good luck.

shaun

Posted on Nov 13, 2009

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It sounds like the varistor on the power supply rail. this always gives trouble. Cut it out and replace the fuse if blown. Turn on and all should be well

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HI. this is a power supply issue. Your unit is equipped with an external power supply unit. This box incorporates all the necessary AC current regulators, and transfer agents to run the Wii. There are ,also, some protection circuits as well. These are in place to protect the unit from surges are unstable AC spikes as well. There is a fuse that is located inside the power supply box. Simple unplug the power supply, and gain access to the fuse, by removing the outer cover of the power supply unit. there are a few screws,(on the bottom), that hold the top cover. remove the screws, and open the power supply unit. this will expose the fuse. Kindly, inspect the fuse. if it shows signs of trauma, and it is blown, simply replace the fuse.

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It shows that there is shorting in the further circuit,check MOV (metal oxide varistor) used for protection in the mains supply,MOV is mounted parallel to the main input supply,if o.k check further bridge rectifier and finally switching device used for SMPS power supply either transistor or STR by replacing the same.

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HI. this is a power supply issue. Your unit is equipped with an external power supply unit. This box incorporates all the necessary AC current regulators, and transfer agents to run the Wii. There are ,also, some protection circuits as well. These are in place to protect the unit from surges are unstable AC spikes as well. There is a fuse that is located inside the power supply box. Simple unplug the power supply, and gain access to the fuse, by removing the outer cover of the power supply unit. there are a few screws,(on the bottom), that hold the top cover. remove the screws, and open the power supply unit. this will expose the fuse. Kindly, inspect the fuse. if it shows signs of trauma, and it is blown, simply replace the fuse.

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HI. this is a power supply issue. Your unit is equipped with an external power supply unit. This box incorporates all the necessary AC current regulators, and transfer agents to run the Wii. There are ,also, some protection circuits as well. These are in place to protect the unit from surges are unstable AC spikes as well. There is a fuse that is located inside the power supply box. Simple unplug the power supply, and gain access to the fuse, by removing the outer cover of the power supply unit. there are a few screws,(on the bottom), that hold the top cover. remove the screws, and open the power supply unit. this will expose the fuse. Kindly, inspect the fuse. if it shows signs of trauma, and it is blown, simply replace the fuse.

Now, if the fuse shows no signs of trauma, or burn marks, this will confirm power supply circuit failure. This will require that you replace this damaged power supply unit asap.>>

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1 Answer

My wii console will not power on. have checked all plugs and everything is connected and outlet has power


HI. the power supply board has failed. There is a fuse(3amps) inside the power supply unit. you will need to remove the cover from the power supply to access this fuse. once inside the power supply, inspect the fuse. if it is truly blown, replace it. if the fuse is not blown, this will confirm a failed power supply unit. it should be replaced in this case...

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Chances are if the varistor fails, it fails drastically causing a short circuit across the supply. It will sit across the supply (it will look like a thick ceramic capacitor) and you can check for continuity after isolating that at one end. If it shows low resistance (it should show almost open circuit with a Digital meter), replace it.

It need not be the culprit. If you are familiar working with High voltage circuits ( they are lethal inside a microwave ovens as the current capability is high here), you can discharge the doubler capacitor and isolate the high voltage diode to check for shorts in the HT area.

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1 Answer

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If you measure across the varistor leads with it still in the circuit, you should measure around 100-300 ohms, which is the DC resistance of the primary of the low voltage transformer.

If you read infinity / open the primary of the low voltage transformer is bad.

If the varistor is bad, it will be shorted and usually it will be cracked or split. This is a much simpler way to test the varistor.

Have you checked the magnetron thermal cutout (TCO) (or thermostat if so equipped) and the oven TCO? These are the leading causes of a dead GE when the fuse is okay.

You didn't mention the model number. What is it?

Please reply back here if you still need help.

We're happy to help you. Once we have all your information and offer a final solution, we'd appreciate your thoughtful rating of our answer.

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