How to recognize a flooded e-cigarette coil?

Your e-liquid has a strange aroma or your clearomizer is gurgling like never before? Your e-cigarette coil may be flooded!

A flooding (coil flood) is a common problem among vapers, whether beginners or experienced. It can ruin your vaping experience, reduce the lifespan of your coil, and even damage your equipment if the problem persists. In this guide, we explain: why a coil floods, how to recognize a flooded coil, what to do to save it, and how to prevent it from happening again.

What is a flooded coil (flooding)?

A flooded coil (or flooded in English) means that too much e-liquid has penetrated the wick, preventing optimal vaporization. Instead of heating the liquid to produce vapor, the coil gurgles, spits, or produces an unpleasant taste.

Why does a coil flood?

Several causes can explain this phenomenon:

• Drawing too hard: too powerful a draw can push too much liquid toward the coil;
• Power too low: if your box mod is set too low in watts, the e-liquid is not vaporized fast enough and builds up;
• E-liquid too thin: an unbalanced PG/VG ratio (too much PG) or a too-thin liquid (e.g., 100% PG) promotes leaks;
• Worn coil: a clogged or damaged wick poorly absorbs the liquid, causing buildup;
• Overfilling: too much e-liquid in the tank can compress the air and force the liquid toward the coil;
• Sealing issue: a faulty seal or a poorly screwed-on clearomizer can let liquid through;
• Temperature changes: thermal shock (e.g., leaving your device in direct sunlight then vaping) can expand the liquid.

7 signs that a coil is flooded

How do you know if your coil is really flooded? Here are the signs that allow you to detect a faulty e-cigarette coil:

1. A burnt or caramelized taste: the excess liquid overheats and bakes onto the coil instead of vaporizing properly;
2. Excessive gurgling: your clearomizer makes a "glug-glug" noise with every draw because the e-liquid bubbles in the coil instead of evaporating cleanly;
3. Less dense and warm vapor: the vapor is less abundant and more irritating to the throat because the excess liquid smothers the coil, preventing optimal vaporization;
4. E-liquid spitting in your mouth: liquid projections during inhalation occur because the coil cannot vaporize everything and expels untransformed liquid;
5. A coil that heats abnormally: the clearomizer becomes burning hot after a few puffs because the excess liquid overloads the coil, which has to work harder to heat up;
6. E-liquid leaking through the airflow: internal pressure pushes the liquid outward;
7. A sudden drop in flavor: the e-liquid has lost its taste, even with a new coil, because flooding dilutes the aromas and prevents uniform vaporization.

What to do when a coil is flooded?

Don't panic! Here are 5 methods to save a flooded coil before throwing it away.

1️⃣ Wipe away the excess liquid (the simplest method)

• Turn off your box mod and disassemble the clearomizer;
• Gently blow into the drip tip (mouthpiece) to expel the excess liquid;
• Wipe the coil with absorbent paper (without pressing too hard);
• Let it dry for 5-10 min before reassembling. ? Tip: If you have an air compressor, a quick burst can help flush out the liquid.

2️⃣ Increase the power (watts) gradually

• If your coil is set too low in watts, increase in increments of 5W until vaporization returns to normal.

⚠ Warning: Do not exceed the recommended range for your coil (e.g., 40-80W for a 0.2Ω coil).

3️⃣ Vape without inhaling (light dry burn)

• Remove the tank (to avoid burning the cotton);
• Heat the coil at low power (10-15W) for 2-3 seconds;
• Repeat 2-3 times to evaporate the excess liquid.

⚠ Warning: Do not do this with a dry cotton coil (risk of burning the wick).

4️⃣ Switch e-liquid (if too thin)

• If your liquid is too thin (PG> 70%), switch to a thicker blend (50/50 or 70% VG);
• High-VG liquids are less prone to leaks.

5️⃣ Replace the coil if it is too damaged

• If after these steps the burnt taste persists, the coil is probably dead;
• Replace it to avoid damaging your clearomizer.

Tutorial for changing the coil on an e-cigarette

How to prevent a coil from flooding?

Prevention is better than cure! Here are 10 tips to avoid flooding:

1. Adjust the power to your coil
2. Do not draw too hard
3. Fill your tank correctly
4. Use a suitable e-liquid
5. Check the seal
6. Avoid thermal shocks
7. Clean your clearomizer regularly
8. Change your coil before it wears out
9. Use a leak-proof clearomizer
10. Store your e-cigarette properly