I shorted a circuit, reset a breaker, now much of the house electricity only works if I turn on a wall AC unit


I'm wondering if any of you could guess what might have happened. I live in an older 60s ranch with an older electrical system. I was cutting some shrubs this morning and hit a 3 strand wire that was just hanging out in the shrub that I'm assuming powered a irrigation pump (that's no longer there). Huge pop, flash of light, loppers slightly melted where I clamped down on the wire.

I came inside and the one breaker had tripped (the one labeled "Irrigation Pump"). I capped off the wires, put them in a junction box and buried them so hopefully the next guy won't do what I did.

None of the other circuits in the house had been tripped, but now several sections of my house have no power. There is a GFI outlet in the garage that had tripped, which I reset, but I can't figure out why many sections of the house no longer have power.

Any ideas what might have happened?

Many thanks.

Edit- I should mention one other anomaly. The overhead lights/fans in the...

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I'm trying to add in a bell transformer to my existing Hager consumer unit. It's from about 1995. I live in England. The first image below shows the front cover, with five spare ways and their covers. So far so good.

But the next image shows the existing MCBs that are fitted. You can see that there is a gap between them. You can also see that there is no traditional metal DIN rail. This is something a bit like it made of plastic that I'm going to call the DIN plate. It's screwed into the same position that the DIN rail would have gone. However, you will see from this image and the subsequent one that the DIN plate is in fact Tee shaped. It is not a purely horizontal rail. There is a vertical leg in the middle of it. This leg fills the gap between the existing MCBs either side.

You can see therefore that there is no way to attach other items to the middle section of the DIN plate. The consumer unit is effectively full, even though there is a gap and...

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I am facing very strange issue in my power meter & wiring. i am residing in Group society. following is my setup.

electricity digital Meter is installed at bottom with a circuit breaker out of my house. i have ELCB installed which acts as circuit breaker for electricity of my house and other small MCBs are installed for regular electricity. some MCBs are installed for high-Power switches which are actually for ACs and Geysers.

5) i have relay switch installed in main circuit box which switch between Main power and Gen-set power(in time of power cut), so high-Power switches ( point 4 above) are not relayed , they directly get power from phase as high-Power switches are not connected to Gen-set.

issue i am facing.

ELCB is always tripping when connected to home wiring. so my electrician has separated that from ELCB and now ElCB only controlling high-Power switches & it does not trip. if i switch off the all MCbs and ELCB my power meter show that i have consumed some...
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Please call an electrician before you burn your house down! Changing a 40A breaker to a 50A breaker will eventually melt your wire's insulation and start a fire if it continues to trip. I would say you should change it back, but you should let the electrician do that. There is a short or overload in that circuit, which needs to be corrected before you attempt to reapply power. Circuit breakers are not there to make your life harder, they are there to make your life longer! Have a professional electrician correct the short or overload and then replace the breaker with a properly rated breaker before energizing the A/C unit.

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Outside AC unit not running? Perhaps the fan inside the furnace unit runs, but doesn't blow cool air?

Here are a few of things you can do before calling an AC repair company.

Make sure the thermostat is set to COOL

A repair person will check this first, so you might as well, right?

Ensure that your thermostat is set to COOL and then set the temperature setting at least 5 degrees below the indoor temperature.

Look for a blown fuse or tripped circuit breaker

If there was a power surge, your air conditioner might have blown a fuse or tripped a circuit breaker.

Look for this problem in two places:

Your main electrical panel -- On old homes this is a 'fuse box' while newer homes have a circuit panel. If it's a fuse box, look for a blown fuse (replace that thing!) On a circuit breaker, look for a tripped circuit and flip it to "off" and then back to "on". At the shutoff box near the AC -- Some models of air conditioners have a fuse at...
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Half of House Electrical Not Working

March 1, 20171 found this helpful

If half of your home does not have power, you may have a breaker that is getting overloaded. Contacting a certified electrician to troubleshoot and repair your electrical issues is often recommended. This is a guide about half of house electrical not working.

No Power to Circuit After Changing Switches

January 4, 20171 found this helpful

This is a guide about no power to circuit after changing switches. Replacing electrical switches may best be left to a professional electrician to make sure it is done properly.

Outlets in One Room Don't Work

January 3, 20171 found this helpful

This is a guide about outlets in one room don't work. Identifying the various circuits in a room can help you troubleshoot electrical problems when some outlets stop working.

GFCI Outlets Not Working

March 1, 20170 found this helpful

If your Ground-fault...

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Knowing how to turn off the power to your house is a safety practice all family should learn.

©Don Vandervort, HomeTips

The top circuit breakers typically shut off electricity to the entire house. The lower circuit breakers are for individual branch circuits.


To shut off the electrical power to your entire house, locate the main electrical panel (it pays to know where this is before you need it!) and flip the main circuit breakers at the top (usually a pair) to OFF. To shut off the power to individual rooms or circuits, shut off the branch circuit breakers. If you home is equipped with an older fuse box, pull the main disconnect or pull out the fuse block to shut off the power to the house. Unscrew (counterclockwise) individual fuses to shut off individual circuits.

Beware: Do Not Touch Any Electrical Wires, Connections, or Sockets!

In Depth:

The main circuit breaker, usually located inside the main panel at the top, shuts off all of the...

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Problem: This problem is probably the second most common problem that I see every summer in our HVAC business. The problem most of the time is a bad run capacitor. The Air conditioner outdoor unit will not come on. Either the outdoor fan does not run, the compressor does not run, or both the fan and the compressor do not run.

Solution: You probably need a new run capacitor. We have a real good air conditioning troubleshooting YouTube video near the bottom of this page that ucberk599 produced. This video discusses and shows how to install a new capacitor. Please click here if you would like to see the capacitors we sell.

1. I would first recommend turning your thermostat to Off and then reset your air conditioner’s circuit breaker. Most of the time home air conditioners run on a 30 or 40 amp double pole breaker. Always were shoes and do not touch any metal part of the breaker box when resetting a circuit breaker. Reset the circuit breaker with two fingers on the...

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By far, the number one DIY project that terrifies folks is electrical wiring. I always say, “It’s good to have a fear of something that can, um, KILL YOU – or at least give you a hair-raising jolt you won’t soon forget!” But while a healthy fear is good, a paralyzing one isn’t. So let me start our electric edification with one basic principle:

You cannot get an electrical shock if no electricity is present. So, the golden rule for any electric project is to check, then re-check, that the power is OFF.

Simple, right? To follow this rule you first need to locate your service panel. Wait a minute – WHAT is your service panel? Think of a service panel as a switchboard, where electricity comes into your home from the power company, then gets branched through the panel to all of the various plugs, switches, and dedicated power lines.

The thing about the service panel is this – more than distributing power around your home, it protects it by disrupting the flow of...

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Circuit Breaker- Need and Definition

Basically electricity coming to our house or to any other places from the power distribution grids forms a large circuit with the lines connecting to the power plant forming one end called the hot wire and the lines connecting to ground forming other end. Electrical charge flows between these two lines and potential is developed between them. The connection of loads(appliances) offering resistance to this flow of charge completes the full circuit and the whole electric system inside the house works smoothly as long as the appliances have sufficient resistant and do not cause any over current . Short circuiting or too much charge flowing through the circuit or sudden connection of the hot end wire to the ground wire would heat up the wires, causing fire. To prevent such situations a circuit protection is used which simply cuts off the remaining circuit in such conditions.

Generally there are two ways of solving this above...

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Find the main circuit breaker box. Some homes may have 1 large main breaker box as well as smaller branch breaker boxes.


Locate the defective breaker.

A tripped breaker is halfway between the on and off position.

Before assuming a circuit breaker needs to be replaced, try resetting the breaker by turning off all lights and unplugging all devices on that circuit. Then turn the back to the on position. Some breakers must be turned all the way off before they can be turned back on. Test the circuit breaker by turning on the breaker, and then add the devices 1 at a time. If the light or device becomes operable, then a voltage tester is not needed.


Use a voltage tester to see if power is going out through the wire attached to the breaker.


Turn off the branch breaker boxes, followed by the main power.This should be the large flip switch located above or below all the other smaller ones. It should also be labeled "main" or...
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Hello avid.....

If there is no power to the receptacles:

1. Turn the circuit breaker switches off and disconnect all electrical loads from the generator.

2. Turn the circuit breakers on and test the GFCI's by following the procedures in this manual

on page 1 -


Start the generator. Turn the auto idle switch off. Push in the TEST button (A) on the receptacle.

The RESET button (B) will pop out. Power is now off at the receptacle.

If the RESET button does not pop out, the GFCI is not working. Do not run

generator until the problem can be corrected. To restore power to receptacle,

push the RESET button in. If the RESET button pops out during operation,
stop the generator and check the generator and equipment for defects.

3. Place the voltage selector to the 120 Volt only positions (unless you are using a tool that

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Recently my house main ELCB (Earth Leakage Circuit Breaker) tripped intermittently. The ELCB can trip from few minutes to an hour. For your information there must be something that had gone wrong and drawing too much current causing the ELCB to trip.

Before I reset the ELCB switch, I removed all the electrical devices plug like handphone charger, hair dryer, TV, router and etc and also turned off all the lights. I even turned off the air-conditioner (air-cond).

Once done, I reset the ELCB switch and connecting back the electrical plugs one by one hoping to see the ELCB trip again. If it tripped then I know the source of the problem. I did not turn On the air-cond. I let all the electrical devices connected to the ac socket and all the lights On for more than 2 hours and the ELCB did not trip. This is a good sign because it means the air-cond could be the problem. So I went to the living room and turn On the air-cond and within 10 minutes the ELCB tripped! I...

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MOBILE HOME ELECTRICAL WIRING FAQs - CONTENTS: diagnostic questions & answers about manufactured or mobile home electrical system defects, troubleshooting, repairs, codes. Mobile home electrical panels, wiring, lights, switches: inspect & repair. Safety and building codes for mobile homes POST a QUESTION or READ FAQs about how to troubleshoot & fix problems in manufactured home or mobile home electrical systems: service entry wiring, electric meter, main panel, wiring, outlets, lights, switches. REFERENCES

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Electrical wiring FAQs for manufactured & mobile homes:

This article contains questions & answers that assist in electrical diagnosis & repair for mobile homes, manufactured homes, doublewides, trailers and RVs. We include diagnostic questions & answers about manufactured or mobile home electrical system defects,...

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