Light Not Turning On? 5 Common Causes & How to Fix Them

Table of Contents

• Introduction

• Burnt-Out Bulb

• Faulty Switch

• Loose or Broken Wiring

• Blown Fuse or Tripped MCB

• Home Wiring Issues

• When to Call an Electrician

• Prevention Tips

• Conclusion

• FAQ

Introduction

A light that won’t turn on could be a sign of either a minor or serious electrical problem.

In Malaysia’s humid climate, combined with older electrical systems, lights can fail more quickly. Identifying the cause early can save both time and money.

1. Burnt-Out Bulb

• Cause: Prolonged use or unstable voltage.

• Fix: Replace with a new bulb of the correct wattage. Always switch off the power before replacing.

2. Faulty Switch

• Cause: Worn-out or broken internal mechanism.

• Fix: Replace with a new switch. If unsure, get help from a certified electrician.

3. Loose or Broken Wiring

• Cause: Poor connections or wires damaged by rodent bites or cable aging.

• Fix: Requires inspection by a professional. Do not attempt to fix it yourself without electrical knowledge.

4. Blown Fuse or Tripped MCB

• Cause: Short circuit or electrical overload.

• Fix: Check your home’s fuse/MCB box and reset it. If it trips frequently, there may be wiring issues.

5. Home Wiring Issues

• Cause: Old wiring or non-compliance with safety standards.

• Fix: Replace with new wiring through a licensed electrician.

When to Call an Electrician

• Burning smell or sparks.

• Lights flicker often even with new bulbs.

• MCB trips repeatedly without a clear reason.

Prevention Tips

• Use high-quality LED bulbs.

• Inspect your home wiring every 5–10 years.

• Avoid overloading electrical sockets.

• Use a voltage stabilizer to protect against unstable voltage.

Conclusion

• Don’t ignore lighting issues.

• With early inspection, you can prevent electrical fire risks and costly repairs.

FAQ

1. Why do LED bulbs burn out quickly?

   Usually due to unstable voltage or poor bulb quality.

   
   

2. Is it safe to change a switch myself?

   Yes, if you know basic electrical work, but hiring a professional is safer.

   
   

3. How much does rewiring cost in Malaysia?

   Depends on home size—usually RM1,500–RM5,000.

   
   

4. How long do LED bulbs last?

   Around 15,000–25,000 hours of use.

   
   

5. How to prevent lights from flickering?

   Ensure proper wiring and use quality bulbs with stable drivers.

💡 Light not working at home? Contact our experienced electricians here for immediate inspection.