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GFI outlet fuse trips even when nothing is plugged in

GFI outlet main fuse trips even if nothing is plugged in and it will not reset. I can't use any of my GFI'

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Re: GFI outlet fuse trips even when nothing is plugged in

Switching power supplies are known to cause such "false" tripping in some cases. These power supplies often employ RF filtering using capacitors from line to ground, resulting in current leakage that when large enough can trip a GFCI. See item 6 at the following URL:

Posted on Apr 20, 2010

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Re: GFI outlet fuse trips even when nothing is plugged in

Hi there, there is a shorted electronic parts at your power supply, fuse allways blows means a shorted diode, regulator and a transistor. it should be replace, do some testing and replace the defective parts. ty

Posted on Jan 10, 2008

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How to recharge superex jumpstart/compressor

Plug in the cord with the switch off. If the battery is still good in the unit then it will take a full day to charge. If you charge it for a full day and you still have nothing the battery is bad. If this is a new unit, check to see if it is under warranty.

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Computer not powering up

bad power supply. just replace

Jun 07, 2012 | System Power Supplies

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Hi there PSU Stopped working. Dismantled and found fuse blown. Replaced with new fuse, which blew straight away. Any ideas as most likely component that has failed / needs replacing?! Regards,...

Follow these steps :
Power on your computer and place one hand behind the power supply's fan on the back side of the computer case. Check to see if there is any air being blown by the fan and listen for any fan noise, which will both indicate the power supply is still receiving electricity. Turn off the computer.
Remove the power cable from the current wall outlet it is plugged into and connect it to a different outlet to make sure the outlet isn't the cause of the problem. Replace the power cable entirely with a new one and plug it into the original wall outlet to find out if the cable was defective.
Power on the computer and check to see if the problem still persists. Turn the computer off if you are still having problems and disconnect all of the cords from the back of the case. Set the computer down onto its right side on any nearby stable work surface. Unlock the left side panel from the computer by removing the two case screws on the back end of the case. Push down on the panel slightly and then slide it away from you to remove it from the case.
Make a visual inspection of the power supply, which will be located at the top left side of the case. Check to see if the power supply has sustained any obvious physical damage such as from spilled liquid or possibly falling out of the drive bay. Replace the power supply if there is any obvious physical damage.
Check the connections of the IDE cable that run from the motherboard to the power supply. Make sure the connection is secure at both sides and hasn't slipped out. Replace the IDE cable with a new one if it has any obvious physical damage.
Unplug the cord that runs from the power supply to the hard drive. Turn on your digital multimeter and set it to the "DC" setting. Attach the power cable back into the power supply with the case still open. Press the computer's power button.
A Digital MultimeterInsert the multimeter's black probe into the black wire of the power supply cable you removed from the hard drive. Take the multimeter's red probe and plug it into the yellow wire of the power supply cable. Check the reading that appears on the digital multimeter's screen.
Replace the power supply if the reading on the multimeter is lower than 11 or higher than 13.

Oct 24, 2010 | Apple FW800 (661-2816) Power Supply

2 Answers

Which wires turn on the power supply

If you are referring to the the main power cord the plugs in from the wall outlet in your home. Then there is only one looks like a thick black cord with three female end slits and on the opposite side three pronged electric outlet plug ( standard outlet plug ). Is your power supply not turning on?

Aug 22, 2010 | Dell - PS-5201-7D (PS52017D) Power Supply

1 Answer

My computer will not turn on

many, not all, psu's will internally tripo after this happens. how to reset:
1 if it has an on/off button turn off for 1 min and turn on.
2 if it has no button but has a 110/220 switch, unplug it then switch to 220 then back to 110 (also this may be 115/230 or even 120/240)
3 if it has neither of these, unplug it for 10 mins, then replug it and start up.
also when you opened the case did you smell anything funny? if so i would say that the mobo and/or cpu are done for. i doubt this tho because you had them on a surge, but it is possible.
1 more thing when you opened the case did you by chance knock a wire loose from the mobo?(motherboard)
after re reading your post i question whether the surge strip is good, because you said it was tripped and yet you had the posu light on. or did you mean a light inside the case of the computer itself?
if none of these suggestions help you please re post with answers to the questions i asked thanx and hope i have helped.

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1 Answer

Packard Bell Laptop goes flat even when plugged into the mains su

Are you sure that the power adaptor is working? Does it have any light on the adapter box that informs about it's operation?
What usually happens is that the cable going from the adapter to the laptop gets crackled from repetitive bending, either at the plug, or at the box inlet. Inspect if the cable is intact, and if possible, checks if there's a required DC voltage on the plug.
Perhaps you might need a new adapter for your laptop.

Dec 07, 2009 | System Power Supplies

1 Answer

I was using my Monster Power PowerCenter PC 800 power surge protector. My tv was running off it, Xbox360, and I had an iron plugged in too. All of the sudden it shut everything off and had a high pitch...

You have to open it up. Check for busted fuse, or a burnt
part. Your Power Center PC800 just experienced an overload. It could have blown an internal fuse at the least
and a burnt out part at its worst.

Nov 14, 2009 | System Power Supplies

1 Answer

I unplugged the computer and when I plugged it back in, the computer will not come on.

if its plugged in to a known good outlet and nothing turns on- no lights-no beeps-no fans then its your power supply

Jul 18, 2009 | HP System Power Supplies

2 Answers

Modular Home Wiring Schematics

Won't be a wiring schematic for it. If it is a modular it will be wired same as a house. Unfortunaltly it will be wired by the lowest paid electrician you have ever seen. LOL. If the wires are hot, put a multimeter on them and have someone flip the breakers one by one to identify the wires and breakers. If they are not causing any problems then they are just spare connections. Don't know why they would even be there.

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