SparkyLocal
Troubleshooting

Why Do My Lights Flicker?

Written by Senior Electrician
Updated: Nov 2026

Flickering lights can be a minor annoyance or a symptom of a serious electrical hazard, usually depending on whether the flickering is isolated or whole-house.

Important Safety Warning

A loose neutral connection can cause 240V lines to jump to 415V, destroying all electronics in your home and causing severe shock risk.

Common Signs & Symptoms

  • One specific light flickers constantly
  • Lights dim briefly when an appliance (like AC) turns on
  • All lights in the house flicker simultaneously
  • Flickering accompanied by buzzing sounds

Potential Causes

Why is this happening? Here are the most common reasons we see in WA homes:

  • Loose lightbulb or faulty fitting
  • Incompatible dimmer switch with LED bulbs
  • Large appliance pulling significant startup current
  • Loose neutral connection at the main switchboard or street

Troubleshooting Steps (DIY Safe)

  • 1
    Turn off the switch, safely carefully check if the bulb is screwed in tight.
  • 2
    If it's a dimmable LED, verify that a modern LED-compatible dimmer is installed.
  • 3
    Notice if the flickers coincide with the fridge compressor or AC starting.
  • 4
    If ALL lights flicker unexpectedly, call an electrician heavily—this indicates a loose neutral which is highly dangerous.

DIY vs Professional

In Western Australia, it is illegal to perform your own electrical work. While you can change a lightbulb or reset a switch, anything involving wiring or removing fittings must be done by a licensed electrician.

How we can help

If you haven't been able to resolve the issue with the steps above, it's time to call in the experts. Sparky Local carries the necessary diagnostic tools to identify the root cause quickly and safely.

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