Vape Troubleshooting Guide: Fix Weak, Hot, Burnt, Popping and Dead Vapes

The short answer: most vape problems come down to one of five things: a flat or faulty battery, a worn or burnt coil, too much or too little e-liquid, the wrong e-liquid for the device, or something blocking the airflow or contacts. Find your symptom in the table below, try the fix, and if the device is hot, swollen, damaged or smells odd, stop using it and read the safety section first. Adults only: nicotine is addictive, so if you don't use nicotine, don't start.

This guide replaces a handful of smaller ones (weak vape, burnt taste, spitting, overheating, cleaning and so on) and puts the useful bits in one place. If your problem is liquid where it shouldn't be, we have a separate, focused guide: why is my vape leaking?

What's on this page

• Quick diagnosis table
• Prefilled or refillable: which have you got?
• Dead, flashing or not firing
• Weak, airy or not satisfying
• Burnt or dry-tasting hits
• Flat, dull or off-tasting
• Spitting, popping and gurgling
• Hot, swollen or damaged: stop first
• Cleaning and day-to-day care
• Frequently asked questions
• When to ask us

Quick diagnosis: symptom, likely cause, fix

What is happening	Most likely cause	What to try
Nothing happens, no light	Flat battery, bad cable, locked device	Charge for a while with a different cable; check your manual for a lock (many devices lock with several quick button presses)
Lights up or flashes but no vapour	Pod not seated, dirty contacts, empty or blocked pod	Remove and refit the pod, wipe the contacts, check the liquid level and airflow holes
Weak flavour, thin vapour	Worn coil, low battery, airflow too open, wrong liquid	Fresh pod or coil, full charge, tighter airflow, right liquid for the device
Burnt or harsh taste	Dry or worn coil, chain vaping, power too high	Stop, refill, let it soak, fit a new coil if the taste stays
Spitting, popping, gurgling	Flooded coil, overfilled pod, hard draws	Clear the excess, leave an air gap, draw gently
Hot to hold	Rapid repeat puffing, high power, or a battery fault	Rest it. If it stays hot, or the battery area is hot: stop, see the safety section
Liquid on the outside or on the contacts	Condensation or a genuine leak	See our leaking guide
Not charging	Cable, charger, dirty port	Try another cable and a plain USB-C charger; check the port for fluff or liquid

Prefilled or refillable: which have you got?

The fix often depends on the type of kit, so check which one you own.

• Prefilled pod kits have a rechargeable battery and a sealed pod with the liquid and coil built in. You don't fill them or change a coil: when the pod is done, you fit a new one (or in some cases a new refill pack). They are reusable devices, not disposables. Browse the prefilled pod kits.
• Refillable pod kits have a pod you fill with your own e-liquid, with a replaceable pod or coil. You get more control and more things to look after. Browse starter vape kits or refillable pod kits.

In short: with a prefilled kit your fixes are charge, seat, wait, and swap the pod. With a refillable kit you also have the filling, priming and coil questions below.

Dead, flashing or not firing

Work through these in order. It takes about two minutes and sorts most "it just stopped" calls.

1. Charge it properly. Plug in a known-good USB-C cable and give it a decent charge before you decide it's broken. If it won't take a charge, try another cable and another plain charger. Don't use a damaged cable.
2. Refit the pod. Take it out, look at the metal contacts, wipe them with a dry tissue or cotton bud, and push it back until it seats.
3. Check there's liquid. An empty pod won't produce vapour, and firing it dry can damage the coil.
4. Check airflow. Look for a blocked air hole, a leftover sticker or a seal still in place on a new pod.
5. Check for a lock. Many devices lock with a quick series of button presses. Your manual or the product page will say how yours works.
6. Try a different pod. If a fresh one works, the old one was the problem.

If it flashes in a pattern, that is usually the device telling you something (low battery, short circuit, no pod detected). The pattern varies by brand, so check your manual rather than guessing. And if none of this helps, see "When to ask us" below.

A note on single-use vapes: the Single-Use Vapes Act commenced on 24 July 2026 with a six-month retail transition, so you'll see changes around January 2027. If you have a true single-use device that won't start, there is nothing inside you can service. Rechargeable prefilled kits are different, because you can swap the pod and keep the battery.

Weak, airy or not satisfying

If your vape feels weak, the cause is usually one of these, roughly in order of how often we see it.

1. A tired coil or pod

Coils wear out. Flavour fades first, then vapour thins, then it starts to taste a bit off. There's no exact lifespan, because it depends on how much you vape, how sweet your liquid is and the device. Many people find a coil lasts somewhere around a week or two of regular use, and sweeter liquids tend to shorten that. If the flavour has gradually gone flat, fit a new one. Find them in replacement pods or replacement coils.

2. Low battery

As a battery runs down, many devices heat less well and the hits feel thinner. Charge it up before judging.

3. Nicotine strength or liquid type

Too little nicotine leaves you vaping more without feeling satisfied. Too much is harsh. People moving from smoking often do well with nic salts in a pod kit, which feel smoother at a given strength. Browse nic salt e-liquids. Think of strength as a dial, not a target: go up or down one step at a time.

4. Airflow and draw style

Pod kits are mostly built for a mouth-to-lung draw: a slow pull into the mouth, then inhale. A very open airflow gives a cooler, airier, weaker feel; tighten it if your device lets you. Short, sharp puffs don't heat the coil evenly either. A slow, steady draw of a few seconds works better.

5. The wrong device for how you vape

If you want a tight, cigarette-like draw, a big airy kit will always feel underpowered. A pod kit built for mouth-to-lung is a better match. If your current one just doesn't suit you, our starter vape kits are a good place to look, and we'll happily talk you through them in the shop.

Burnt or dry-tasting hits

If you taste burning, stop and sort it out. Carrying on only cooks the coil further. Burnt hits usually come from the cotton running short of liquid.

• Prime a new coil. On a refillable pod, put a few drops on the cotton if the instructions say so, fill the pod, then let it sit for roughly five to ten minutes before the first puff. A dry-fired new coil can be ruined in a few draws.
• Don't run it low. If the liquid is below the coil inlet, the cotton dries. Top up before it's empty.
• Space your puffs. Chain vaping uses liquid faster than the cotton can soak it back up.
• Use the right liquid. Thick, high-VG juice can struggle to wick in small pod coils. For pod kits, 50VG/50PG e-liquids and nic salts are the usual match. Check what your device maker recommends.
• Mind the power. If your device has adjustable wattage, stay inside the range printed on the coil.
• Know when it's finished. A burnt coil can't be fixed. If the taste stays after a refill and a rest, replace the pod or coil.

Signs the coil has gone: harsh or acrid taste, thin vapour, and liquid that looks dark. Sweeter liquids can darken sooner, so colour alone isn't proof, but dark liquid plus a bad taste is a clear hint.

Flat, dull or "off" taste

If it isn't burnt but just tastes wrong, the cause is often the liquid or your own taste buds rather than the device.

• Old e-liquid. Flavour dulls with age, heat and sunlight. Check the best-before date and store it properly (how to store e-liquid, how long it lasts).
• Vaper's tongue. Taste buds can go dull after frequent vaping of the same flavour. Drink water and switch flavour for a few days.
• Not your flavour. Some are sweeter than they look on the label. Try a different one: tobacco and menthol are the usual safe bets, and best tobacco e-liquids lists what we stock.

Spitting, popping and gurgling

A bit of crackle is normal. Loud popping, hot droplets or a gurgling sound means liquid is pooling in the coil area.

• Overfilling. Leave a small air gap and stay under the fill line.
• Flooded coil. Take the pod out, wipe any excess from the mouthpiece and contacts, and let it settle. Take a couple of gentle draws without a full inhale.
• Hard draws. Pulling too sharply drags liquid into the coil. Slow and steady.
• Liquid and device mismatch. Very thin or very thick liquid can both cause trouble in a small pod.
• A worn coil. If it keeps happening with a fresh fill and gentle draws, change the pod or coil.

Spitting is unpleasant rather than dangerous in itself, but if liquid is getting out of the device, the leaking guide covers what to do.

Hot, swollen or damaged: when to stop using your vape

Some warmth after several puffs in a row is normal. A device that stays hot, or one with a damaged battery, is a different matter. Lithium batteries can fail badly, so take this section seriously.

If a device is hot or you suspect a battery fault, unplug it if it's charging, put it somewhere non-flammable and well away from anything that burns, and don't carry it in a pocket or bag. Don't try to open it. Don't put it in the ordinary bin: batteries need to go to a proper battery recycling point. If it's actively smoking or on fire, get away from it and call 112.

Charging safely

• Never leave a vape charging unattended, and never charge it overnight under a pillow or on a bed or sofa.
• Use a proper USB-C cable and a plain, reputable charger. Skip damaged cables and mystery chargers.
• Charge it on a hard, clear surface, away from curtains and paper.
• Don't leave it in a hot car or in direct sun.
• Unplug it when it's done.

If it's just running warm

Repeated rapid puffs, a low-resistance coil or a higher power setting all make a device feel warmer. Rest it between puffs, and make sure the airflow isn't blocked. If it still runs hot with gentle use, don't keep testing it. Bring it in or email us.

Cleaning and day-to-day care

Ten minutes of care now and then makes a real difference to flavour, coil life and leaks.

• Wipe the outside and the pod contacts with a dry cloth or cotton bud.
• Keep the airflow holes clear of fluff and residue.
• Clean the mouthpiece regularly. You put it in your mouth.
• Refillable pods: if the maker says the pod can be rinsed, use lukewarm water, let it dry fully, and don't refit it wet. Rinse non-electrical parts only.
• Prefilled pods: don't wash or soak a sealed pod that holds liquid and a coil. Just swap it when it's done.
• Never submerge the battery section or the charging port, and never use water on the contacts.
• Changing flavour? Fit a fresh pod or coil rather than trying to scrub the old taste out.
• Store it upright, cool and dry, with the pod in properly.

Cleaning doesn't replace changing the coil. It just stops a good coil getting spoiled early.

Habits that avoid most problems

1. Match the liquid to the device.
2. Don't overfill.
3. Let a new coil soak.
4. Draw slowly and give it a rest between puffs.
5. Replace pods and coils before they get burnt, not after.
6. Keep it charged, but never unattended.

Time for a new device?

If you've done everything here and it still misbehaves, the device may simply be at the end of its life, or not a good match for you. For a no-fuss option, the IVG Pro 10K Prefilled Pod Kit has nothing to fill. If you'd rather choose your own liquid, the Vaporesso XROS 6 Pod Kit is a refillable option. Spares live in replacement pods and replacement coils, and the full range is in our vape kits. Stock changes, so check each page.

Frequently asked questions

Why is my vape lighting up but not hitting?

Usually the pod isn't seated, the contacts are dirty, the pod is empty, or the airflow is blocked. Refit it, wipe the contacts and check the liquid. If a fresh pod works, the old one was spent.

Why is my vape not charging?

Try another cable and a plain USB-C charger first. Check the port for fluff or liquid. If a charged-looking device is hot or swollen, stop and read the safety section.

Why does my vape taste burnt?

The coil is dry or worn. Refill, let it soak, take slower puffs, and replace the pod or coil if the taste stays.

Why is my vape weak?

Most often a worn coil, low battery, airflow that is too open, or the wrong liquid or strength.

Is it normal for my vape to get warm?

A little, after several puffs. Hot to hold, hot when idle, or hot at the battery end is not normal. Stop using it.

How often should I change my coil?

There is no fixed rule. Many people change every week or two with regular use, sooner with sweet liquids. Change it when the flavour fades or the taste turns harsh.

Can I wash my vape?

Only rinse parts the maker says are rinsable, never the battery section, and dry everything fully. Never wash a sealed prefilled pod.

Is vaping safe?

UK health bodies have long said vaping is far less harmful than smoking, but it is not risk-free, and the HSE does not recommend it as a way to stop smoking. It is for adults only. If you want to quit, speak to your GP or pharmacist, or the HSE.

Can I use any e-liquid in any device?

No. Pod kits generally suit nic salts and 50VG/50PG liquids. Very thick liquids can cause dry hits or flooding. Check what your device recommends.

When to ask us

If you've worked through this and you're still stuck, pop into OB Vape in Drogheda and we'll look at it with you, or email info@obvape.ie with the device name, what it's doing and a photo if that helps. If you're unsure which coil or pod fits, bring the old one in, because matching by sight is quicker than guessing. For anything hot, swollen or damaged, don't wait: stop using it first, then get in touch.

The bottom line: check the battery, check the pod or coil, check the liquid, and check the airflow. That fixes most of it. If it's hot, swollen or damaged, retire it. A new pod is cheaper than a bad day.

Adults only, and keep all vape products away from children and pets.

Checked on 7 November 2026.