DIY electrical repairs you can do at your home in New Zealand

Here are some of the DIY electrical repairs you can easily do by yourself at your home.

It’s always good to have some DIY electrical knowledge as it can come in handy when you’re least expecting it.  Suppose you’re at home and suddenly something goes wrong with your electricity at home, you can easily fix these small problems without having to call an electrician and can help save you some money.

Here’s some electrical problem you can easily fix at your home by yourself:

  1. How to replace your fuse.
  2. How to check your circuit breaker
  3. How to wire a plug

we will be discussing these topics below in details

1. How to replace your fuse.

Follow this guide when replacing some types of fuses:

  1. Turn off the main power switch at the switch board.
  2. Look inside the switchboard for a list of the equipment or circuits each fuse controls.  Usually one fuse controls a certain area of the house, such as the kitchen, or certain types of equipment, like lighting.
  3. If you can’t tell which fuse has blown, pull out, inspect, and replace each fuse, one at a time.
  4. Once identified, switch off lights and unplug all appliances on the faulty circuit.
  5. Replace the fuse wire.  There are a number of different types of fuses.  If you are not sure, the best way to replace a fuse is to examine one of the intact fuses in your switchboard and copy the way the wiring runs in the carrier.
  6. Make sure you use the correct current rating wire.  The current is generally indicated on the front of the fuse carrier.
    – Lighting circuits typically use 5 amp wire but not greater than 10 amp.
    – Socket outlets use 10 amp wire but not greater than 15 amp.
    – Large appliances, such as electric stoves, may use a larger size.
  7. Make sure no excess wire is sticking out of the fuse carrier.
  8.  Replace the fuse carrier and turn on the main power switch.
  9. Check all appliances, light fittings and cords that were in use when the circuit failed.  Replace or repair faulty equipment.  Check that the fuse did not blow due to overloading the circuit.
  10. If the fuse blows again, call a licensed electrician.
  11. Never be tempted to replace a fuse wire with a larger size of fuse wire, or another object.  Doing so may result in an electrically-caused fire.
  12. If a fuse has blown it is because of an overload situation or a fault has occurred on the circuit.  If you replace a fuse and it still blows, you should call a licensed worker.


2. How to check your circuit breaker

  1. If your power goes off because your circuit breaker has tripped, look for the lever in the “off” position (A) or where the button has popped out (B).
  2. Switch off lights and unplug all appliances on the faulty circuit.
  3. Push the operating lever to the “on” position (A), or push in the button on the circuit breaker (B).
  4. If the circuit breaker continues to trip, call a licensed electrician.


3. How to wire a plug

We recommend that you buy moulded plugs that do not need rewiring. However if you do need to rewire, there is only one way to wire an electrical plug safely.

Study the diagram below and ensure that you always connect the correct colour to the correct letter. In New Zealand, it is most common for the coloured wires inside power cords to look like either A or B. They should be connected as illustrated below.

Warning! If you are rewiring a plug yourself, always ensure the wires are correctly positioned, as this is a common cause of serious electric shocks if wired incorrectly.


All household power outlets in New Zealand only use a flat three or two-pin plug, depending on whether an earth connection is fitted.

Typical three pin plug:


If you are not able to check your circuit breaker or replace your fuse by yourself and need a professional electrician in Auckland to do it for you, contact Jenco Electrical. Jenco Electrical services can help you with all kinds of electrical needs, general electrical maintenance, and new builds.They also service West Auckland and North Shore region.




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