A new air fryer can have a temporary first-use odour; later smells can come from food or oil residue, overfilling or blocked ventilation, while a beep may be a cooking alert. Pick your air fryer model below to check the smell or identify the sound.
Before inspecting or cleaning detachable parts, switch off, disconnect external power, wait for movement to stop and let hot parts cool completely. Keep fingers away from cutting edges and do not open the motor housing.
Stop using a damaged detachable part and replace it with the correct part for your appliance before further use.
Is the smell burning, or is there an electrical or motor-base fault?
If there is liquid inside or under the motor base, smoke, a burning smell, sparks, an electric shock, or a damaged cord, plug or base, stop using it, unplug it only if it is safe to do so, and take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase). Do not restart after these signs; the checks below apply only when none of them has occurred.
If a check cannot be completed, a part will not fit securely, or the symptom remains after the checks, leave the appliance off. Take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase); use Find my model if you need to identify your appliance.
NutriBullet CrispLite Air Fryer 6L
A smell from the NutriBullet CrispLite Air Fryer 6L may be a new-machine odour, while accumulated oil and food debris can produce smoke; three beeps signal the end of cooking.
Are the ventilation openings or surrounding spaces covered?
- Place the NutriBullet CrispLite Air Fryer 6L on a clean, dry, level, heat-resistant surface and inspect the air space around it.
- Leave at least 200 mm above, below and on all sides as specified in the guide, including at least 200 mm between the rear of the air fryer and the wall; keep the rear air outlet uncovered.
- Remove anything stored on top or obstructing the vents. Before another use, the outlet and surrounding spaces must remain clear; stop if the unusual sound or smell continues.
Is this only a new-machine odour before first cooking?
- Before first cooking with the NutriBullet CrispLite Air Fryer 6L, remove all packaging and wash the Cooking Basket and 3-in-1 Reversible Grill, Pizza, & Crisping Tray in hot soapy water; wipe the Base exterior with a damp cloth.
- For first-use preparation, the guide permits an empty run at the highest temperature for about five minutes to remove new-machine odour.
- Keep the air fryer supervised with the ventilation space specified above. If the smell remains after this preparation or returns on later uses, leave the appliance off.
Is food too close to the top of the basket or drawer?
- Overfilling the NutriBullet CrispLite Air Fryer 6L prevents hot air circulation and can bring food into contact with the heating element.
- Before cooking, reduce the load in the Cooking Basket so there is at least 50 mm between the food and its top edge; divide a large portion into smaller batches.
- Check that food is contained within the cooking space and the basket or drawer closes correctly; if the smell or sound persists, leave the appliance off.
Has oil been poured into the cooking space for deep frying?
- The NutriBullet CrispLite Air Fryer 6L must not be used for deep frying with oil; check how oil has been added before cooking.
- If oil has been poured directly into the Cooking Basket, stop the cook and allow the appliance and oil to cool completely before removing the detachable parts.
- Clean the removable cooking parts as described in the residue check, and only use the air fryer for the cooking methods in its guide. If the appliance has shown the fault signs described above, follow that help route.
Are oil and food residues accumulating in the cooking basket?
- Accumulated oil and food debris in the NutriBullet CrispLite Air Fryer 6L can produce smoke; inspect the removable cooking parts between uses.
- After switching off, unplugging and allowing complete cooling, remove the Cooking Basket and 3-in-1 Reversible Grill, Pizza, & Crisping Tray. Empty any remaining food and wash these removable parts in warm soapy water.
- Do not use abrasive or metal tools or oven cleaner; gently wipe residue from the inner Base wall with a warm cotton cloth, then dry with a clean cloth.
- If food particles remain on the cooled heating element, remove them with a soft-to-medium bristle brush while the air fryer remains disconnected. Wipe the Base only. NEVER submerge the main unit in water.
- Dry the basket and 3-in-1 Tray thoroughly; seat the tray securely and level in the basket, then return the basket fully to the Base.
- The cooking parts must be free of residue and securely seated before further use. Apply oil to the food before placing it in the basket; if residue cannot be removed or a part is damaged, leave the affected part out of use.
Is the sound the normal end-of-cooking alert?
- The NutriBullet CrispLite Air Fryer 6L gives 3 beeps when the cooking time finishes; check whether the sound occurs exactly as the timer ends.
- Wait a few seconds for the cooking action to stop before removing the hot cooking basket by its handle.
- A continuing grinding or scraping noise is not the completion alert; leave the air fryer off if the sound does not match the described signal.
NutriBullet XXL Digital Air Fryer 7L
The NutriBullet XXL Digital Air Fryer 7L can have a new-machine odour before first cooking; five beeps signal the end of cooking, and cancellation can also produce beeps.
Are the ventilation openings or surrounding spaces covered?
- Place the NutriBullet XXL Digital Air Fryer 7L on a clean, dry, level, heat-resistant surface and inspect the air space around it.
- Leave at least 200 mm above, below and on all sides as specified in the guide, including at least 200 mm between the rear of the air fryer and the wall; keep the rear air outlet uncovered.
- Remove anything stored on top or obstructing the vents. Before another use, the outlet and surrounding spaces must remain clear; stop if the unusual sound or smell continues.
Is this only a new-machine odour before first cooking?
- Before first cooking with the NutriBullet XXL Digital Air Fryer 7L, remove all packaging and wash the Cooking Basket and Crisping Tray in hot soapy water; wipe the Base exterior with a damp cloth.
- For first-use preparation, the guide permits an empty run at the highest temperature for about five minutes to remove new-machine odour.
- Keep the air fryer supervised with the ventilation space specified above. If the smell remains after this preparation or returns on later uses, leave the appliance off.
Is food too close to the top of the basket or drawer?
- Check the NutriBullet XXL Digital Air Fryer 7L food level; the guide requires clearance below the top and no direct contact with the heating element.
- Before cooking, reduce the load in the Cooking Basket so there is at least 50 mm between the food and its top edge; divide a large portion into smaller batches.
- Check that food is contained within the cooking space and the basket or drawer closes correctly; if the smell or sound persists, leave the appliance off.
Has oil been poured into the cooking space for deep frying?
- The NutriBullet XXL Digital Air Fryer 7L must not be used for deep frying with oil; check how oil has been added before cooking.
- If oil has been poured directly into the Cooking Basket, stop the cook and allow the appliance and oil to cool completely before removing the detachable parts.
- Clean the removable cooking parts as described in the residue check, and only use the air fryer for the cooking methods in its guide. If the appliance has shown the fault signs described above, follow that help route.
Is there old food or oily residue on the removable cooking parts?
- The NutriBullet XXL Digital Air Fryer 7L guide calls for cleaning the removable parts after every use to reduce residue buildup; check these parts when investigating an unusual cooking smell.
- With the air fryer off, unplugged and completely cool, remove the Cooking Basket and Crisping Tray. Rinse the removable parts in warm soapy water; avoid abrasive or metal tools that can damage the coating.
- Gently wipe residue from the inner Base wall with a warm cotton cloth and dry it with a clean cloth; wipe the Base only. NEVER submerge the main unit in water.
- Dry all parts thoroughly. Seat each Crisping Tray securely and level at the bottom of its cooking container, then refit the container fully. If residue cannot be removed or a detachable part is damaged, leave it out of use.
Is the sound the normal end-of-cooking alert?
- The NutriBullet XXL Digital Air Fryer 7L gives 5 beeps when the cooking time finishes; check whether the sound occurs exactly as the timer ends.
- Wait a few seconds for the cooking action to stop before removing the hot cooking basket by its handle.
- A series of beeps with flashing temperature and time readings also occurs when you hold the Power button to cancel cooking; the Power button reappears after 30 seconds.
- A continuing grinding or scraping noise is not the completion alert; leave the air fryer off if the sound does not match the described signal.
NutriBullet Twin Drawer Air Fryer
The NutriBullet Twin Drawer Air Fryer can have a new-machine odour before first cooking, while five beeps signal the end of cooking.
Are the ventilation openings or surrounding spaces covered?
- Place the NutriBullet Twin Drawer Air Fryer on a clean, dry, level, heat-resistant surface and inspect the air space around it.
- Leave at least 200 mm above, below and on all sides as specified in the guide, including at least 200 mm between the rear of the air fryer and the wall; keep the rear air outlet uncovered.
- Remove anything stored on top or obstructing the vents. Before another use, the outlet and surrounding spaces must remain clear; stop if the unusual sound or smell continues.
Is this only a new-machine odour before first cooking?
- Before first cooking with the NutriBullet Twin Drawer Air Fryer, remove all packaging and wash the Cooking Drawers and Crisping Trays in hot soapy water; wipe the Base exterior with a damp cloth. Remove the inserts under each Cooking Drawer before the first run.
- For first-use preparation, the guide permits an empty run at the highest temperature for about five minutes to remove new-machine odour.
- Keep the air fryer supervised with the ventilation space specified above. If the smell remains after this preparation or returns on later uses, leave the appliance off.
Is food too close to the top of the basket or drawer?
- Check the NutriBullet Twin Drawer Air Fryer food level; the guide requires clearance below the top and no direct contact with the heating element.
- Before cooking, reduce the load in the Cooking Drawers so there is at least 50 mm between the food and its top edge; divide a large portion into smaller batches.
- Check that food is contained within the cooking space and the basket or drawer closes correctly; if the smell or sound persists, leave the appliance off.
Has oil been poured into the cooking space for deep frying?
- The NutriBullet Twin Drawer Air Fryer must not be used for deep frying with oil; check how oil has been added before cooking.
- If oil has been poured directly into the Cooking Drawers, stop the cook and allow the appliance and oil to cool completely before removing the detachable parts.
- Clean the removable cooking parts as described in the residue check, and only use the air fryer for the cooking methods in its guide. If the appliance has shown the fault signs described above, follow that help route.
Is there old food or oily residue on the removable cooking parts?
- The NutriBullet Twin Drawer Air Fryer guide calls for cleaning the removable parts after every use to reduce residue buildup; check these parts when investigating an unusual cooking smell.
- With the air fryer off, unplugged and completely cool, remove the Cooking Drawers and Crisping Trays. Rinse the removable parts in warm soapy water; avoid abrasive or metal tools that can damage the coating.
- Gently wipe residue from the inner Base wall with a warm cotton cloth and dry it with a clean cloth; wipe the Base only. NEVER submerge the main unit in water.
- Dry all parts thoroughly. Seat each Crisping Tray securely and level at the bottom of its cooking container, then refit the container fully. If residue cannot be removed or a detachable part is damaged, leave it out of use.
Is the sound the normal end-of-cooking alert?
- The NutriBullet Twin Drawer Air Fryer gives 5 beeps when the cooking time finishes; check whether the sound occurs exactly as the timer ends.
- Wait a few seconds for the cooking action to stop before removing the hot cooking basket or drawer by its handle.
- A continuing grinding or scraping noise is not the completion alert; leave the air fryer off if the sound does not match the described signal.
NutriBullet CrispLite Vision Air Fryer 8L
A smell from the NutriBullet CrispLite Vision Air Fryer 8L may be a new-machine odour, while accumulated oil and food debris can produce smoke; three beeps signal the end of cooking.
Are the ventilation openings or surrounding spaces covered?
- Place the NutriBullet CrispLite Vision Air Fryer 8L on a clean, dry, level, heat-resistant surface and inspect the air space around it.
- Leave at least 200 mm above, below and on all sides as specified in the guide, including at least 200 mm between the rear of the air fryer and the wall; keep the rear air outlet uncovered.
- Remove anything stored on top or obstructing the vents. Before another use, the outlet and surrounding spaces must remain clear; stop if the unusual sound or smell continues.
Is this only a new-machine odour before first cooking?
- Before first cooking with the NutriBullet CrispLite Vision Air Fryer 8L, remove all packaging and wash the Cooking Basket and 3-in-1 Reversible Grill, Pizza, & Crisping Tray in hot soapy water; wipe the Base exterior with a damp cloth.
- For first-use preparation, the guide permits an empty run at the highest temperature for about five minutes to remove new-machine odour.
- Keep the air fryer supervised with the ventilation space specified above. If the smell remains after this preparation or returns on later uses, leave the appliance off.
Is food too close to the top of the basket or drawer?
- Overfilling the NutriBullet CrispLite Vision Air Fryer 8L prevents hot air circulation and can bring food into contact with the heating element.
- Before cooking, reduce the load in the Cooking Basket so there is at least 50 mm between the food and its top edge; divide a large portion into smaller batches.
- Check that food is contained within the cooking space and the basket or drawer closes correctly; if the smell or sound persists, leave the appliance off.
Has oil been poured into the cooking space for deep frying?
- The NutriBullet CrispLite Vision Air Fryer 8L must not be used for deep frying with oil; check how oil has been added before cooking.
- If oil has been poured directly into the Cooking Basket, stop the cook and allow the appliance and oil to cool completely before removing the detachable parts.
- Clean the removable cooking parts as described in the residue check, and only use the air fryer for the cooking methods in its guide. If the appliance has shown the fault signs described above, follow that help route.
Are oil and food residues accumulating in the cooking basket?
- Accumulated oil and food debris in the NutriBullet CrispLite Vision Air Fryer 8L can produce smoke; inspect the removable cooking parts between uses.
- After switching off, unplugging and allowing complete cooling, remove the Cooking Basket and 3-in-1 Reversible Grill, Pizza, & Crisping Tray. Empty any remaining food and wash these removable parts in warm soapy water.
- Do not use abrasive or metal tools or oven cleaner; gently wipe residue from the inner Base wall with a warm cotton cloth, then dry with a clean cloth.
- If food particles remain on the cooled heating element, remove them with a soft-to-medium bristle brush while the air fryer remains disconnected. Wipe the Base only. NEVER submerge the main unit in water.
- Dry the basket and 3-in-1 Tray thoroughly; seat the tray securely and level in the basket, then return the basket fully to the Base.
- The cooking parts must be free of residue and securely seated before further use. Apply oil to the food before placing it in the basket; if residue cannot be removed or a part is damaged, leave the affected part out of use.
Is the sound the normal end-of-cooking alert?
- The NutriBullet CrispLite Vision Air Fryer 8L gives 3 beeps when the cooking time finishes; check whether the sound occurs exactly as the timer ends.
- Wait a few seconds for the cooking action to stop before removing the hot cooking basket by its handle.
- A continuing grinding or scraping noise is not the completion alert; leave the air fryer off if the sound does not match the described signal.
NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L
A smell from the NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L may be a new-machine odour, while accumulated oil and food debris can produce smoke; three beeps signal the end of cooking, and beeps with a flashing Shake Reminder mean it is time to shake the food.
Are the ventilation openings or surrounding spaces covered?
- Place the NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L on a clean, dry, level, heat-resistant surface and inspect the air space around it.
- Leave at least 200 mm above, below and on all sides as specified in the guide, including at least 200 mm between the rear of the air fryer and the wall; keep the rear air outlet uncovered.
- Fit the Cord Wrap/Wall Spacer by snapping it into the receiver on the back of the Air Fryer Base; check that it is securely attached before positioning the air fryer.
- Remove anything stored on top or obstructing the vents. Before another use, the outlet and surrounding spaces must remain clear; stop if the unusual sound or smell continues.
Is this only a new-machine odour before first cooking?
- Before first cooking with the NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L, remove all packaging and wash both Cooking Baskets, Crisping Trays and Wire Racks in hot soapy water; wipe the Base exterior with a damp cloth.
- For first-use preparation, the guide permits an empty run at the highest temperature for about five minutes to remove new-machine odour.
- Keep the air fryer supervised with the ventilation space specified above. If the smell remains after this preparation or returns on later uses, leave the appliance off.
Is food too close to the top of the basket or drawer?
- Overfilling the NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L prevents hot air circulation and can bring food into contact with the heating element.
- Before cooking, reduce the load in the Cooking Basket so there is at least 50 mm between the food and its top edge; divide a large portion into smaller batches.
- Check that food is contained within the cooking space and the basket or drawer closes correctly; if the smell or sound persists, leave the appliance off.
Has oil been poured into the cooking space for deep frying?
- The NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L must not be used for deep frying with oil; check how oil has been added before cooking.
- If oil has been poured directly into the Cooking Baskets, stop the cook and allow the appliance and oil to cool completely before removing the detachable parts.
- Clean the removable cooking parts as described in the residue check, and only use the air fryer for the cooking methods in its guide. If the appliance has shown the fault signs described above, follow that help route.
Are oil and food residues accumulating in the cooking basket?
- Accumulated oil and food debris in the NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L can produce smoke; inspect the removable cooking parts between uses.
- After switching off, unplugging and allowing complete cooling, remove both Cooking Baskets, Crisping Trays and Wire Racks. Empty any remaining food and wash these removable parts in warm soapy water.
- Do not use abrasive or metal tools; gently wipe residue from the inner Base wall with a warm cotton cloth, then dry with a clean cloth.
- If food particles remain on the cooled heating element, remove them with a soft-to-medium bristle brush while the air fryer remains disconnected. Wipe the Base only. NEVER submerge the main unit in water.
- Dry all cooking parts thoroughly; seat each Crisping Tray level in its Cooking Basket. If using a Wire Rack, put it above the tray with the handles facing up, then return the baskets to the Base.
- The cooking parts must be free of residue and securely seated before further use. Apply oil to the food before placing it in the basket; if residue cannot be removed or a part is damaged, leave the affected part out of use.
Is the sound the normal end-of-cooking alert?
- The NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L gives 3 beeps when the cooking time finishes; check whether the sound occurs exactly as the timer ends.
- Wait a few seconds for the cooking action to stop before removing the hot cooking basket by its handle.
- A continuing grinding or scraping noise is not the completion alert; leave the air fryer off if the sound does not match the described signal.
Is the Shake Reminder flashing while the air fryer beeps?
- The NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L beeps and flashes its Shake Reminder when it is time to shake the food; cooking continues during that reminder.
- Use the Cooking Basket handle carefully, remove the basket and shake the food, then reinsert the basket to clear the alert. Keep clear of hot contents and steam.
- Press the Shake button to enable or disable the reminder; an unexplained or persistent mechanical noise means you should take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase).
Magic Bullet Air Fryer 2.5L
A smell from the Magic Bullet Air Fryer 2.5L may be a new-machine odour or come from overcooked food, while hot food can continue to make a frying sound briefly after cooking ends.
Are the air outlet or the spaces around the air fryer blocked?
- Check the Magic Bullet Air Fryer 2.5L position: allow at least 200 mm of air space above, below and on all sides, and at least 250 mm from the wall during operation.
- Keep the rear air outlet uncovered; use a clean, dry, flat surface and do not place the appliance near another heat source.
- The rear outlet and surrounding spaces must remain clear; if the unusual sound or smell continues, leave the appliance off and take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase).
Is it a new-machine odour before the first meal?
- Before using the Magic Bullet Air Fryer 2.5L, rinse the Fry Pot and Crisping Tray with hot soapy water and wipe the Air Fryer Base exterior with a clean, damp cloth. NEVER submerge the main unit in water.
- For first-use preparation only, the guide permits an empty run at the highest temperature for about three minutes to remove new-machine odour. To set a time below ten minutes, turn the Timer clockwise past 10, then back anticlockwise to the required time.
- Do not keep running the empty Fry Pot for long periods; if the odour remains after first-use preparation, leave the appliance unused and take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase).
Is the Fry Pot too full?
- The Magic Bullet Air Fryer 2.5L troubleshooting table lists an overfilled Fry Pot as a cause of overcooked or undercooked food.
- Reduce the load so there is about 50 mm of room at the top of the Fry Pot; split a large portion into smaller batches.
- Seat the Crisping Tray securely and level in the pot, then return the Fry Pot until it clicks into place and sits flush. If it cannot fit securely, inspect for a damaged detachable part and leave that part out of use.
Is food residue left in the Fry Pot or Crisping Tray?
- After the Magic Bullet Air Fryer 2.5L has been turned off, unplugged and cooled completely, pull the Fry Pot out by its handle.
- Lift the Crisping Tray using its centre handle, remove food scraps from both parts and rinse them in hot soapy water; keep clear of the tray’s sharp edges.
- Refit the clean Crisping Tray level in the Fry Pot and return the pot fully into the Base; if a part is damaged or residue cannot be removed, leave that part out of use.
Is the sound still coming from hot food when cooking ends?
- The Magic Bullet Air Fryer 2.5L guide describes a frying sound that can continue briefly after cooking; wait a few seconds for the frying action and sound to stop.
- Do not pull the Fry Pot out while the food is still actively frying; keep hands and face away from steam and use the handle carefully.
- A new grinding, scraping or other persistent sound is not explained by that normal frying note; leave the appliance off and take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase).
Is the Temperature Dial set too high for the food?
- If the smell comes from overcooked food in the Magic Bullet Air Fryer 2.5L, compare the Temperature Dial with the setting needed for the recipe.
- The troubleshooting table identifies a temperature that is too high or too low as a cooking problem; adjust the Temperature Dial to suit the food instead of repeating the same setting.
- Check the next batch during cooking; if food still overcooks at the appropriate setting or the smell is not from the food, leave the air fryer off.
Has the Timer been set for too long?
- For the Magic Bullet Air Fryer 2.5L, excessive cooking time is another troubleshooting-table reason for overcooked food.
- Compare the Timer setting with the recipe and reduce an overly long cooking time for the next batch; turn the Timer and Temperature Dial to 0 to stop an ongoing cook.
- Wait for frying sounds to end before removing the Fry Pot. If the result still overcooks with the correct time, stop using the appliance and take your claim, with your receipt, to the place of purchase (the manufacturer warranty is 12 months from the date of purchase).
Has the Fry Pot been filled with oil for deep frying?
- The Magic Bullet Air Fryer 2.5L guide prohibits deep frying with oil; inspect how the food has been prepared before cooking.
- If oil has been poured into the Fry Pot for deep frying, turn both dials to 0 and allow everything to cool completely before removing the pot.
- Clean the Fry Pot and Crisping Tray using the residue check above, and use only the cooking methods in the guide. Leave the air fryer unused if the unusual smell continues.
Still need help? Chat with us and give us your model name and product code.
The full steps for this model are in its user guide: NutriBullet CrispLite Air Fryer 6L user guide (PDF)
The full steps for this model are in its user guide: NutriBullet XXL Digital Air Fryer 7L user guide (PDF)
The full steps for this model are in its user guide: NutriBullet Twin Drawer Air Fryer user guide (PDF)
The full steps for this model are in its user guide: NutriBullet CrispLite Vision Air Fryer 8L user guide (PDF)
The full steps for this model are in its user guide: NutriBullet CrispLite Dual Stack / Stacked Air Fryer 9L user guide (PDF)
The full steps for this model are in its user guide: Magic Bullet Air Fryer 2.5L user guide (PDF)