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2007 toro LX465 keeps blowing 20 amp power fuse...can't find any wiring shorts..any ideas

Cheched for short with a meter and did a good visual....mower still blows 20 amp power fuse...also changed out rectifier/regulator....any ideas?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: toro 280H regulator fuse keep blowing ,no visable

Check to be sure there is not a rubbed spot on any wiring that is grounding the fuse out.
If not, the regulator is going bad and may need replaced.

Posted on Jun 24, 2009

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mickey813
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SOURCE: My mower keeps blowing the 20 amp fuse that is on

ck the wires going to yhe head lites theay could be frad and shorting out

Posted on Oct 01, 2009

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SOURCE: John Deere L120 blows fuse when starting. Starter spins very briefly, then 25 amp fuse blows

one of the safety switches could be shorted out internally

Posted on Apr 10, 2012

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Keep blowing fuses after repair


Look for any solder or wires not where they are supposed to be, also took for arcing or other signs that a short has occurred.

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93' Jeep Grand Cherokee Limited V8 keeps bowing the 40amp Ignition fuse. Checked Starter, by jumping it. Starter worked just fine. Keeps blowing fuse and leaving me right back where i started, dead...


Blowing fuses is never an easy direct fix. Its rather a hunt needs some dedication. What I try and do is Figure out what is all on this 40 amp fuse, and one at a time remove something from the system and see if it blows. The key is knowing when it will blow for these tests to work. Keep removing what ever is on the system until it stops blowing a fuse. Then figure out how to single out items on that fuse. Whatever fuse it is the problem is on its path. Check all paths that go to items if no items are easily singles out. Replace as you find ,smash, green corrosion and shady connecters. Looks for heat by finding melted plastic connecters. These are clues. If you have a volt meter, then you will find the problem a whole lot easy, by figuring out what OHMS LAw is for whatever guage wire you are working with and a rough guess on length of known path. Using this you can find smashed and corroded wires quicker. As well as finding a short to ground and even short to powers in some cases. Good luck :)

Jun 03, 2014 | Cars & Trucks

1 Answer

Replace 15 amp fuse to a 30


NO,NO,NO ! Fuses are electrical protection for the cars wiring installing a higher amp-age fuse takes longer to blow so your wiring gets hotter and starts to melt the insulation and shorts to other wires eventually burning up the harness. With a amp meter test the circuit to see how much power is needed to keep the circuit going if over rated (15 amp circuit taking 20 amps) then install a cycling circuit breaker 10 amp this will blow and cool and blow again continually then with a magnetic amp meter (Gauss meter) you can locate your short the source voltage causes the amp meter to jump as the fault occurs when you pass it meter will stop working.

Apr 22, 2014 | 2002 Ford Escape

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Keep blowing fuse with lighter - replaced lighter 3x's and doesnt work


There is a short in the wire somewhere... Disconnect the battery, get an ohms meter and remove both the wires from the cigarette lighter and check for connectivity. Trace the wires back to where the short is. It is also possible that the socket is bad, look inside the socket, you will see the positive connector in the socket, the ground is the sides... without touching the two with the same probe at the same time, make sure the wires are disconnected and chech with the ohms meter for connectivity between the side of the socket and the positive lug on the back of the socket.

Jun 08, 2012 | 1998 Chrysler Sebring

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My toro keeps blowing fuses when i turn the key i have a toro 14-38hxl wheel horse rider


its either getting to many amps which will blow fuses
you might have a short (positive wire touching metal)
fuses are not right ie: 10 amp when should 15amp
trace the leads from the key switch (turn it on) to your coil check that they are good
the coil might be faulty

hope this helps

Sep 30, 2011 | Toro Lawn Mower With Toro Power Tools

1 Answer

2006 kia sedona a/c keeps blowing fuse


Not unless you are willing to risk electrical damage or a fire! A fuse is a protection device that is designed to blow if the amp load in a circuit exceeds the "safe" limit for that circuit. Fuses are built with a specific amp rating which is marked on the fuse. The wiring and design load of the circuit dictates the size of fuse that's required to protect the circuit. Circuits that draw a lot of power need fuses with high amp ratings (20 or 30 amps) while those that use minimal power require smaller fuses (5 to 15 amps).

When the current in a circuit exceeds the normal limit for whatever reason, the metal element in the fuse melts and opens the circuit stopping the flow of current. A short, for example, causes a runaway electrical current. If not stopped, wires can start to melt and things can catch on fire. So respect the amp ratings specified for fuses (which can usually be found in your vehicle owners manual, on the fuse block itself or a fuse block reference decal).

What happens if you install a fuse with the wrong amp rating? If you install a 20 amp fuse in a circuit designed for 10 amps, you're asking for trouble. A difference of 10 amps might not sound like much, but it may be enough to fry a sensitive electronic component or to overheat wires to the point where the insulation may start to melt.

WARNING: Under no circumstances should you ever bypass or eliminate a fuse. No electrical circuit should ever be operated without fuse protection. This is extremely dangerous, especially if you've had problems with a fuse blowing before.

If a fuse keeps blowing, it usually means something is amiss in the circuit. The wiring should be checked along with the components in the circuit to determine if there's a short or other problem.

The fuse for the windshield wiper circuit, for example, may blow if ice or debris builds up in the cowl areas and interferes with the movement of the wiper arms. If a fuse blows in a motor circuit (heater blower motor, cooling fan motor, power seat or window, electric fuel pump, etc.), it often indicates a shorted motor. If a fuse in a light circuit blows, look for wiring or connector shorts. Adding driving lights may also overtax the headlight circuit unless a separate circuit is provided for the driving lights. An A/C fuse will blow if the system is low on refrigerant and is working unusually hard, or if the compressor is hanging up. Stereo systems with high amp boosters should also have their own electrical circuit with fuse protection to avoid overloading the normal radio circuit.

Jul 22, 2011 | 2006 Kia Sedona

2 Answers

1984 ford ranger keeps blowing the running light fuses. when i let it sit at idle it won't blow the fuses but as soon as i start driving with in 5 mins or so it blows.... any ideas?


short in the wires will need a wiring diagram and ohm/volt meter to locate the problem, test lights work well to.
you will need replace the fuse with a light bulb so that the power will not go away. and you will have to search for power going straight to a ground source.
usually a raw wire from rubbing somewhere. can do a quick visual inspection first for the obvious, and then use the meter at certain points till you find a volt drop.

May 13, 2009 | 1984 Ford Ranger

1 Answer

Keeps blowing fuses!!!


HI ..PUT AN AMP METER IN LINE TO SEE WHAT THE AMP IS DRAWING..WHEN IT IS CRANKED UP ..IS 20 AMP WHAT IT CALL FOR ON THE AMP IF SO I WOULD NOT GO ANY HIGHER.....BUT IF YOU HAD JUST USED 20 AS A STARTING POINT FOR AN AMP-AGE...SOMETIMES IT IS BETTER THAT THE FUSES BLOW ONCE IN AWHILE THAN THE AMP...ALSO CHECK FOR A LOOSE GROUND.....GOOD LUCK

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