How Flickering Lights Can Signal a Major Electrical Issue
Written by Ian WalshOn the Safe Electric register
Safe Electric Registered Electrician • 24 Years
Key Takeaways for Dublin Homeowners
- If lights dim when the kettle or shower turns on, suspect high-resistance connections or undersized supply cables.
- Burning odours or buzzing accompanying flickering requires immediate main switch isolation.
Table of Contents
Diagnosing Voltage Drops and Loose Mains
A brief flicker when a high-draw appliance like a heat pump kicks in can be a normal voltage fluctuation. However, if lights pulse rhythmically or dim dramatically for seconds at a time, your service drop or consumer unit busbar may have a high-resistance joint that requires immediate investigation.
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About Ian Walsh
With over 24 years of hands-on electrical experience since 2002, Ian Walsh is a licensed Safe Electric Registered Electrical Contractor , Safe Electric registered EV charger installer, and carries full public liability insurance. Every domestic installation comes with Ian's personal Return at No Extra Cost Guarantee.
Return at No Extra Cost Guarantee
If any aspect of our electrical workmanship isn't 100% right, we return promptly to resolve it free of charge.
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