Air Fryer
E5
The E5 error code on a Tefal air fryer indicates an overheating fault — the appliance has detected its internal temperature has exceeded a safe operating limit and has shut itself down as a precaution. It’s a common issue and, in most cases, fully fixable at home without any specialist tools.
What does this error mean?
When your Tefal air fryer displays E5, it means the thermal sensor inside the unit has registered temperatures beyond the designed safe threshold — typically triggered when airflow is restricted or the appliance has been running under excessive load. The fryer’s built-in protection circuit cuts power to prevent damage to the heating element or, more seriously, a fire risk. Think of it as the appliance telling you it’s too hot to continue safely.
Est. repair cost
£50–£90 professional repair; £10–£25 DIY thermal sensor replacement (confident DIYers only, model-dependent)
🔍 Likely causes
🛠️ Step-by-step fix
Switch off and unplug the air fryer immediately, then leave it on a hard, flat surface for at least 30 minutes to cool down fully before touching anything inside
Once cool, remove the basket and drawer and check all air vents (usually on the back and underside) for grease build-up or blocked debris — clear any blockages with a soft brush or dry cloth
Wash the basket, drawer, and any removable trays with warm soapy water, removing all grease residue that could affect airflow or sensor accuracy — dry thoroughly before reassembly
Reposition the air fryer so it has at least 15–20cm of clear space on all sides and above, away from walls, cabinets, and other appliances
Plug back in and run a short test cook (5 minutes, no food) — if E5 reappears immediately, the thermal sensor or fan is likely faulty and you should stop using the appliance
If the error only returns during heavy loads, reduce basket fill to no more than two-thirds capacity and allow a 10-minute rest between back-to-back cooking cycles
📞 When to call a professional
If the E5 error returns immediately after a full cool-down and clean, or if you hear unusual grinding or buzzing from the fan during operation, stop using the fryer — a faulty internal fan or failed thermal sensor needs professional assessment. Contact a small appliance repair technician and tell them you have a Tefal air fryer displaying a persistent E5 overheating fault, specifying your model number (found on the base label). Do not attempt to open the casing yourself, as the capacitors inside can retain a charge even when unplugged.
⚖️ Repair or replace?
Professional repair of a thermal sensor or internal fan on a Tefal air fryer typically costs £50–£90 in the UK, which is often close to or exceeding the cost of a new entry-level Tefal model (£60–£130). If your fryer is under 2 years old and still within warranty, contact Tefal UK directly for a free repair or replacement — Tefal offers a 2-year guarantee on most models. If it’s over 3 years old and out of warranty, replacement is almost always the more cost-effective choice.