Few things are more frustrating than a Caliburn that suddenly stops producing vapour, yet the good news is that the cause is almost always simple and quick to fix. If your Caliburn is not hitting, the most common causes are a locked device, a flat battery, a pod that is not seated properly, dirty or wet contacts blocking the draw sensor. A worn out pod is another. Most can be fixed in under a minute. Here is how to get it working again.

If the problem turns out to be a tired pod, our guide on how long Caliburn pods last helps. Our guide on cleaning a Caliburn covers contact maintenance.

Start with the quick checks

Before assuming anything is broken, run through the basics, since they solve the majority of cases. First, make sure the device is unlocked, as many Caliburns lock with five quick clicks of the button and need another five to wake up, so a locked device simply will not fire. Next, check the battery is charged, because as the battery drops the vapour weakens and eventually stops. Finally, make sure the pod is pushed firmly into place until it clicks, as a pod that is not fully seated cannot make a connection. These three checks alone fix most no hit problems.

Clean the contacts and draw sensor

If the device is unlocked, charged and the pod is seated but it still will not hit, the culprit is usually liquid where it should not be. Remove the pod and look at the connection area at the bottom of the pod slot. If you see e-liquid, condensation or residue, this can block the electrical contacts or, on draw activated models, flood the airflow sensor that detects your puff. Gently dry the area and the base of the pod with a cotton bud or tissue, then refit the pod. Clearing a wet or flooded draw sensor is one of the most common fixes for a Caliburn that has stopped firing.

Check the pod and coil

If cleaning the contacts does not help, the pod itself may be the problem. A worn out coil can stop producing vapour, especially if it has been in use for a week or two or has had a burnt taste, so the simplest test is to fit a fresh pod and see if that restores normal vaping. A brand new pod that has not been primed can also seem to not hit, since the coil needs five to ten minutes to soak up liquid after filling before its first puff. If a new, primed pod works perfectly, you have found your answer and the old pod was simply spent.

Auto draw not responding

Some Caliburns fire purely when you inhale, while others also have a button. If an auto draw model is not responding to your puff, try drawing a little more firmly, as a very soft pull may not trigger the airflow sensor. If it still will not fire on a draw but your model has a fire button, you can use the button instead, which confirms the device works and points to a draw sensor issue. A flooded sensor, as covered above, is the usual cause, so cleaning the contact area often restores auto draw firing completely.

If a worn pod is the issue, the Uwell Caliburn collection stocks genuine replacement pods and coils for every model, so keeping a spare or two on hand avoids downtime.

Charging problems

If the device will not charge at all, which presents as a permanently flat battery, a couple of things are worth checking. Make sure the charging port on the device is free of lint or debris, since pocket fluff can block the connection, so give it a careful clean if needed. Always use a good quality USB-C cable, ideally the one supplied, as some cheap or damaged cables will not deliver a proper charge. If the device charges with a different cable, the original was the problem. A Caliburn typically charges fully in around an hour, so if nothing happens after that, the cable or port is the likely cause.

When to replace rather than fix

Most no hit problems come down to the pod, the battery or the contacts, all of which are easily sorted. If you have worked through every step, including trying a fresh primed pod, cleaning the contacts and charging fully, yet the device still will not fire on the button, the device itself may have failed. Caliburns are reliable but not immortal, since the draw sensor or battery can occasionally fault. At that point a replacement pod is worth ruling out first since it is cheap, yet if a new pod does not help, the device may need replacing under warranty or otherwise.

Related issues to rule out

Sometimes what looks like a no hit problem is really a related issue with an obvious fix once you know it. If you are getting a faint, harsh or scorched taste rather than no vapour at all, the coil is likely burnt rather than dead, which our guide on why your Caliburn tastes burnt addresses directly. If the device fires by itself or refuses to charge, that points to a different fault covered in our guide on a Caliburn auto firing or not charging. Matching the exact symptom to the right fix saves you swapping parts you did not need to.

It also pays to keep your device clean as a preventative measure, since many no hit problems start with liquid or grime building up around the contacts and pod slot. A quick regular wipe stops these issues before they begin. Our guide on how to clean a Caliburn walks through the simple routine. A little upkeep goes a long way toward avoiding the most common firing and connection faults, while keeping the flavour at its best too.

The bottom line

A Caliburn that is not hitting is usually an easy fix. Start by unlocking the device with five clicks, charging it, then reseating the pod until it clicks. If that does not work, remove the pod and wipe the contacts and draw sensor area dry, since a flooded sensor is a very common cause. Then try a fresh, properly primed pod. Most problems are solved within these steps, with only rarely the device itself at fault. Keep a spare pod handy and you will rarely be caught out.

For more guides across the range, visit the Brand Insights: Uwell Caliburn hub. When you are ready, head to the Uwell Caliburn collection.

Vaping products are intended for use by existing adult smokers and vapers aged 18 or over. Always follow the manufacturer instructions supplied with your Uwell Caliburn device. Sold in line with UK regulations.

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