Repair, replace, or stop using it
Search for how long an air fryer lasts and you will find a confident number. AirfryerHQ does not have one and is not going to invent one: no manufacturer in this catalogue publishes an expected life, and nobody has surveyed enough machines to know. What can be answered is more useful anyway — which symptoms mean stop now, which mean a part rather than an appliance, and how to think about the arithmetic.
Questions this answers
- How long should an air fryer last?
- Is it worth repairing an air fryer?
- When should I stop using my air fryer?
- My air fryer smells of burning — is that dangerous?
- Should I replace the basket or the whole machine?
Stop using it now, if any of these
These are not judgement calls and none of them is a repair you should attempt. Scorch marks or discolouration on the plug or the socket. A burning or electrical smell that is not food. Black smoke. A damaged cable, or a plug that is hot to the touch. Any noise that is new — a grinding, a rattle from inside the body, a fan sound that has changed pitch.
Electrical Safety First's guidance is direct on this: switch off immediately and contact the manufacturer on an unusual smell or noise, and check the plug and socket regularly for burn and scorch marks. That is a safety authority rather than AirfryerHQ, and the reason it is stated so plainly is that people persevere with appliances that are telling them not to.
One more, and it is the one people ignore: an air fryer that has cut out mid-cook more than once. Some machines have a thermal cut-out that operates as designed when the appliance overheats, and a cut-out operating repeatedly is a symptom rather than a feature. A UK recall has been issued in this category over a thermal protection that did not operate at all.
A part rather than an appliance
Almost everything that goes wrong with an air fryer in normal use is a coated part reaching the end of its life. A peeling basket, a cracked crisper plate, a warped drawer, a lost grill plate. None of those is an electrical fault and all of them are replaceable if the manufacturer sells the part.
The awkward part is that this catalogue holds no order code for any part of any model — the manuals name their components and none publishes a reference. So the practical route is to find the model number on the rating label, contact the manufacturer, and describe the part. That is more friction than it should be and it is the actual state of the category.
Where the fault is not a part — it will not heat, it cuts out, the display is dead, the buttons do not respond — that is the manufacturer's or a qualified engineer's job. Nothing in this product will ever describe opening a housing.
The arithmetic, honestly
A replacement basket for a dual-zone machine is often a substantial fraction of what the whole appliance cost, which is what makes this a real decision rather than an obvious one. Against that: the motor, element and controls in a machine whose only problem is a coating are all fine, and replacing the appliance throws them away.
Two things swing it. Whether the part is actually available — for a machine more than a few years old, frequently it is not, and that ends the discussion. And whether the appliance is otherwise the one you want, because a five-year-old machine you are lukewarm about is not worth a part.
AirfryerHQ takes no position on which you should do and sells nothing either way. What it will say is that 'the basket has gone so the air fryer is broken' is a conclusion worth checking before acting on.
Why there is no average lifespan here
Because nobody knows one. Not a single manufacturer in this catalogue publishes an expected service life. The figures circulating online are not sourced to anything, and they vary by a factor of three between pages that all state them confidently.
The honest version is that an air fryer lasts until its coating goes or something electrical fails, that the first is much more common than the second, and that how long the coating takes depends almost entirely on how it has been treated. That is less satisfying than a number and it is what the evidence supports.
What AirfryerHQ has not established
Any lifespan figure, failure rate, or repair-versus-replace threshold. No survey, no reliability data and no manufacturer statement exists in this register to support one.
Spare-part availability, pricing or lead times for any manufacturer. Not checked, and the absence of published part references across twenty-nine manuals is the only relevant fact we do hold.
Evidence and confidence
- Applies to
- Applies generally
- Why this rating
- The stop-now list is an authority's guidance rather than ours, and it is the part of this page that matters most. The refusal to publish a lifespan is itself the finding: twenty-nine manuals were read for this catalogue and none states one.
- Last reviewed
- 2026-08-30
What this does not cover
- No reliability, failure-rate or lifespan data of any kind is held.
- The observation that coating failure is more common than electrical failure is reasoned from which parts are handled and washed, and from how often each appears as a question, rather than from a survey.
Sources (3)
Electrical safety advice for air fryers
Electrical Safety First — Electrical-safety authority or body (United Kingdom)
Relied on for: That an unusual smell or noise means switching off immediately and contacting the manufacturer, that plugs and sockets should be checked for burn and scorch marks, and that registering the appliance is what makes a safety notification possible.
States this directly
Passage read and verified
Retrieved 2026-08-13 from electricalsafetyfirst.org.uk
Ninja Foodi MAX Dual Zone Air Fryer AF400UK — Instructions (PDF)
SharkNinja Europe Limited — Manufacturer manual (United Kingdom)
Relied on for: That the manufacturer recommends hand-washing the dishwasher-safe parts to extend their life — treating the coated components as consumables rather than as permanent.
States this directly
Passage read and verified
Retrieved 2026-08-13 from argos-support.co.uk
Retrieved from Argos's manual library, which mirrors the manufacturer's booklet for Argos product 952/3997. Not retrieved from ninjakitchen.co.uk, whose support portal redirected to an authentication gate.
AirfryerHQ assessment of airflow, element proximity and material behaviour
AirfryerHQ — Calculated or inferred by AirfryerHQ (Not jurisdictional)
Relied on for: The mechanism the manufacturer statements are read against.
AirfryerHQ's interpretation of what it says
Citation checked — the document exists and is described correctly