Quick answer
A cart not hitting is usually caused by one of four things: a battery that is off or flat, a dirty or loose 510 connection, oil too thick to reach the coil, or a clogged mouthpiece. Charge the battery, click it on, clean the contacts, warm the cart, and clear the airway before assuming the cart is faulty.
Key takeaways
- Check power first: most button batteries are switched on and off with five quick clicks, so rule out a battery that is off or flat before anything else.
- Airflow without vapour means power is not reaching the coil, so look at the threading, the contacts and the battery.
- No airflow at all means a clog. Warming the cart and taking gentle draws without firing usually clears it.
- Never add thinners or other liquids to a cart. Canada’s public health agency notes a possible link between the 2019 vaping lung-illness outbreak and vitamin E acetate used as a diluent in unregulated vaping products.
- If a cart keeps tasting burnt after these fixes, the coil is damaged and the cart should be replaced.
Last updated 13 October 2026 · By the Bud Cargo team
Why is my cart not hitting?
Your cart is not hitting because power is not reaching the coil, or vapour cannot get from the coil to your mouth. A 510 cartridge is a simple device: the battery sends current through the threaded connection to a heating coil, the coil warms oil soaked into a ceramic or cotton wick, and your draw pulls the vapour up through the centre post and out of the mouthpiece. A break anywhere in that chain gives you no hit.
The quickest way to find the problem is to notice what you do get when you draw:
| What happens | Most likely cause | What to try first |
|---|---|---|
| No light, no vapour | Battery off or flat | Five quick clicks to switch on; charge fully |
| Light blinks several times when you press | Battery can’t detect the cart, or a short | Unscrew, clean the contacts, screw back until just snug |
| Light comes on, air flows, no vapour | Loose or dirty connection, or a dead coil | Clean the threads and contacts; try another battery |
| Hard to draw, no airflow | Clogged airway or thick, cold oil | Warm the cart; draw gently without pressing the button |
| Weak, thin hits | Low charge, lowest voltage, or cold oil | Charge; step up one voltage setting; use preheat |
| Burnt or harsh taste | Dry wick or overheated coil | Lower the voltage; rest the cart upright; replace if it persists |
| Oil in the mouthpiece or on the battery | Flooding or leaking | Wipe clean, store upright, avoid heat |
Why is my cart pulling air but not hitting?
If air flows freely but there is no vapour, the cart is open but the coil is not heating. That points to the electrical side: the battery, the connection, or the coil itself.
Check the battery
Make sure the battery is charged and switched on. Most push-button 510 batteries turn on and off with five quick clicks, and the light usually flashes to confirm. Draw-activated batteries have no button; they fire when you inhale, so a very gentle draw may not trigger them. If the light flashes repeatedly when you press the button, many batteries are signalling a low charge or a short, so charge it fully and reconnect the cart.
Clean the 510 connection
Oil and residue on the threads or the centre contact can stop current reaching the coil. Unscrew the cart, then wipe the threads and the small metal contact on both the battery and the base of the cart with a cotton swab lightly dampened with isopropyl alcohol. Let both dry completely before reconnecting.
Don’t overtighten
Screw the cart on until it is just snug. Cranking it down can push the centre contact out of place or damage the cart’s base, which breaks the connection. If the cart sits too loose, try a different battery: some battery and cart combinations simply don’t make good contact.
Why is my cart battery turning on but not hitting?
If the battery lights up but you get nothing, the battery has power but the cart is not completing the circuit. Clean the connection, reseat the cart, and test it on a second battery if you have one. If the cart works on another battery, the first battery is the problem. If it fails on every battery, the coil is likely dead and the cart needs replacing.
A magnetic adapter ring that came with the battery can also be the culprit. Make sure it is screwed fully onto the cart and is clean on both faces.
How do you unclog a cart?
A clogged cart is unclogged by warming the oil and clearing the airway, and it is usually not a sign the cart is broken. Distillate gets thicker as it cools, and vapour that condenses inside the centre post can block it, especially when a cart has been stored cold or lying on its side.
- Warm it gently. Hold the cart in your closed hand for a minute or two, or use the battery’s preheat function if it has one (often two quick clicks). Low, gentle warmth is the goal; never use a flame.
- Draw without firing. With the battery off or without pressing the button, take a few short, gentle draws to pull the blockage loose.
- Clear the mouthpiece. If you can see oil in the mouthpiece, carefully push it out with a toothpick or an unfolded paperclip, then wipe the tip clean.
- Take slower draws. A slow, steady draw of a few seconds gives the coil time to vaporise oil. Very hard pulls drag liquid oil into the airway and cause the next clog.
Don’t try to open a sealed cart or add anything to it. Many carts are pressed shut and are not designed to be opened, and opening one usually ruins the seal.
Why is my cart clogging?
Carts clog because oil cools and thickens, or because vapour condenses in the airway between hits. The most common triggers are storing the cart cold (a car in winter, a cold room), storing it on its side so oil sits at the mouthpiece end, taking very hard draws, and leaving long gaps between uses. Storing the cart upright at room temperature and taking slow draws prevents most clogs. Heat causes the opposite problem: a cart left in a hot car or in the sun can get runny and leak.
How do you tell if a cart is bad?
A cart is bad if it still tastes burnt after you have lowered the voltage and let it rest, if it fails on more than one battery, or if the oil looks or smells wrong. Signs worth acting on:
- Persistent burnt taste. One harsh hit can be a dry wick; a burnt taste on every hit means the coil or wick is damaged. Lowering the voltage won’t fix that.
- No hit on any battery after cleaning the contacts and warming the cart.
- Leaking from the base straight after you receive it, or oil pooling in the packaging.
- Oil that has separated into layers, looks cloudy, or smells chemical rather than like cannabis.
Never “fix” a thick or cloudy cart by adding thinners, oils or other liquids. Canada’s public health agency notes that the 2019 outbreak of vaping-associated lung illness has a possible link to vitamin E acetate used as a carrier agent or diluent in unregulated vaping products, and it lists adding substances to vaping liquids that the manufacturer did not intend as a risk.
Why is my cart not getting me high?
If the cart hits but the effect feels weak, the cause is usually the device settings or the way you draw, not the oil. The lowest voltage setting on a variable battery can produce thin vapour; step up one setting at a time until the vapour is full but not harsh. Very short puffs may not give the coil time to heat. A nearly empty cart also produces weaker hits as the wick dries out.
Potency also differs between products. Carts list their THC content on the label, and our guide to reading THC labels explains what those numbers mean. For context, Canada’s Cannabis Regulations cap licensed cannabis extracts at 1,000 mg of THC per immediate container. If you have been vaping daily, tolerance plays a part too.
Why is my disposable vape not hitting?
A disposable that won’t hit is usually flat, clogged or empty. If it has a charging port, charge it fully, since many disposables still light up when the battery is too low to heat the coil properly. If it is clogged, warm it in your hand and take gentle draws, as with a cart. A disposable can’t be switched to a different battery, so if it still won’t hit after charging and warming, it has reached the end of its life. Our 510 carts vs disposable vapes guide compares the two formats in detail.
Where to buy THC carts and disposables in Canada
Bud Cargo has about 40 510 THC cartridges in stock, from $18 to $30. A few examples at today’s prices:
| Cartridge | Size | Price |
|---|---|---|
| HERA, Tangerine Haze | 1 mL | $18 |
| Boost THC cart, Jack Herer | 1 g | $25.50 |
| Ginger Peach premium cart | 1 g | $28.99 |
| So High cart, Granddaddy Purple | 1 mL | $30 |
We don’t have standalone 510 batteries in stock at the moment, so you will need your own battery for a cart. If you would rather avoid battery and threading problems entirely, our disposable vape pens come with the battery built in: 119 are in stock from $30 to $100, with a median of $40. The vape cartridge shopping guide covers how to choose between brands.
Orders ship across Canada for $25 to BC, Alberta, Saskatchewan and Manitoba, $30 to the rest of the country, and free on orders over $150. You can pay by Interac e-Transfer or credit card. Bud Cargo is a mail-order dispensary, not a provincially licensed retailer.
Frequently asked questions
Why is my cart not hitting me?
Usually because the battery is off or flat, the 510 connection is dirty or loose, the oil is too cold and thick, or the airway is clogged. Charge and switch on the battery, clean the contacts, warm the cart and draw gently.
Why is my cart pulling air but not hitting?
Air without vapour means the coil is not heating. Check that the battery is charged and on, clean the threads and contacts with isopropyl alcohol, avoid overtightening, and try a second battery.
Why is my cart battery turning on but not hitting?
The battery has power but the cart is not completing the circuit. Clean and reseat the connection, check any magnetic adapter, and test the cart on another battery. If it fails on every battery, the coil is dead.
How to tell if a cart is bad?
A cart is bad if it tastes burnt on every hit after you lower the voltage, fails on more than one battery, leaks from the base, or has oil that is separated, cloudy or smells chemical.
Why is my vape cartridge clogging?
Oil thickens when it is cold and vapour condenses in the airway. Storing the cart cold or on its side, very hard draws and long gaps between uses all cause clogs. Store it upright at room temperature.
Why is my cart not getting me high?
Weak effects usually come from a low voltage setting, very short puffs, a low battery or a nearly empty cart. Step up one voltage setting, take slower draws of a few seconds, and check the label for THC content.
Can you add anything to a cart to thin it?
No. Never add thinners or other liquids to a cart. The Public Health Agency of Canada notes a possible link between the 2019 vaping lung-illness outbreak and vitamin E acetate used as a diluent in unregulated vaping products.
Sources: Public Health Agency of Canada, Vaping-associated lung illness. Cannabis Regulations (SOR/2018-144). Prices and stock counts from Bud Cargo’s live in-stock catalogue, 13 October 2026.
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