Power Outage After a Storm in Luxembourg: What to Check

After the Storm — Don't Just Flip Breakers Blindly

Luxembourg gets serious thunderstorms in summer. Lightning surges, fallen branches on power lines, and water ingress are the top causes of post-storm electrical problems.

Step 1: Is It You or the Grid?

• Check neighbours' lights — if the whole street is dark, it's Creos. Report at creos.net.
• Check your panel — if breakers are tripped, the issue is inside.

Step 2: Safe Things to Check

• Differential breaker (30mA) — if tripped, water may have entered an outlet or appliance
• Main breaker — a surge may have tripped it
• Surge protector — many have an indicator light or window

Step 3: Reset Carefully — Once

• Unplug sensitive electronics first (TV, computer, router, fridge)
• Flip the breaker fully off, wait 30 seconds, flip on
• If it trips again, stop. Repeated resets after lightning = fire risk

Warning Signs You Need a Pro

• Burning smell anywhere
• Outlets sparking when you plug things in
• Lights flickering across multiple circuits
• Appliances that worked before now don't power on
• Brown marks around outlets

Why You Should Replace Surge Protectors After a Strike

A single nearby lightning hit consumes the protection inside the surge protector. It looks fine but no longer protects anything. Replace it.

Typical Cost

• Storm damage diagnosis: €100–€200
• Surge protector replacement (panel): €150–€350
• Appliance circuit repair: €150–€400

Storm damage often hides. Call +352 27 58 58 25 — our emergency electricians arrive in 25–30 minutes.