Electrical problems should never be taken lightly. Every year, fires are caused by faulty installations. This guide helps you recognise the warning signs.
Warning Signs You Should Never Ignore
Burning Smell or Melted Plastic Odour
What it means: A cable or socket is overheating Danger: Imminent fire risk
Action:
- Switch off the main circuit breaker
- Identify the source
- Call an electrician urgently
Sparks or Electrical Arcing
What it means: Short circuit, faulty connection Danger: Fire and electrocution risk
Electric Shocks
What it means: Current leakage, faulty earthing Danger: Potentially fatal electrocution
Frequently Tripping Circuit Breaker
Causes: Overload, short circuit, current leakage
When it’s serious:
- Tripping for no apparent reason
- Breaker hot to touch
- More than 2 trips per week
Hot Sockets or Switches
What it means: Poor connection, overload Action: Do not use, have it checked
Flickering Lights
Benign causes: Loose bulb, poor-quality LED Concerning causes: Circuit problem, faulty connection
Diagnosis Chart
| Symptom | Severity | Urgency |
|---|---|---|
| Burning smell | Very high | Immediate |
| Sparks | Very high | Immediate |
| Electric shocks | Very high | Immediate |
| Breaker trips > 2x/week | High | 24-48 hours |
| Hot sockets/switches | High | 48 hours |
| Flickering lights | Moderate | 1 week |
Repair Costs
| Work | Price in Luxembourg |
|---|---|
| Socket replacement | €50-120 |
| Switch replacement | €60-130 |
| Earthing repair | €150-400 |
| Consumer unit replacement | €800-2,000 |
| Rewiring 50 m² flat | €3,000-6,000 |
| Rewiring 100 m² house | €6,000-12,000 |
Prevention
Regular Inspection
Check annually:
- Condition of sockets and switches
- Consumer unit
- Appliance cords
- Test the RCD (residual current device) using the “T” button
Good Practice
- Don’t overload sockets
- Avoid daisy-chaining extension leads
- Use bulbs of the correct wattage
Find an Electrician on tack.lu
More than 70 professional electricians are listed on tack.lu in Luxembourg.
FAQ
Can I replace a socket or switch myself?
This is only recommended if you have the skills. For safety reasons, call an electrician.
How long does an electrical installation last?
A well-maintained installation lasts 30-40 years. Beyond that, renovation is advisable.
Does my insurance cover electrical problems?
Insurance generally covers resulting damage (fire), but not repair of the installation if it’s due to wear and tear.
