Air Fryer
E5
The E5 error code on a Breville air fryer indicates an overheating fault — the appliance has detected that its internal temperature has exceeded a safe threshold and has shut itself down to prevent damage or fire. It looks alarming, but in most cases it’s fixable at home in minutes.
What does this error mean?
E5 signals that the air fryer’s thermal sensor has registered temperatures beyond its safe operating limit, triggering an automatic cut-off. This is a built-in safety mechanism, not a sign that the unit is broken beyond repair. The appliance is refusing to run until the cause of the excessive heat is identified and resolved.
Est. repair cost
£50–£90 professional repair (fan/thermistor replacement); £0–£20 DIY if cause is simply blocked vents or positioning
🔍 Likely causes
🛠️ Step-by-step fix
Switch off and unplug immediately. Leave the air fryer to cool completely on a flat, open surface — allow at least 30 minutes before doing anything else.
Check and clear the vents. Inspect the intake vents (usually on the sides or base) and exhaust vent (rear or top). Use a dry pastry brush or can of compressed air to remove any grease, crumbs, or dust blocking them.
Reposition the appliance. Ensure there is at least 15–20 cm of clear space on all sides and above the unit. Never operate it under overhead cupboards or against a wall.
Clean the basket and drawer. Remove built-up grease from the basket, tray, and interior cavity — heavy grease deposits can act as insulation and trap heat. Wash with warm soapy water and dry thoroughly.
Test with a smaller load. Once cool, plug back in, run a short cook at a moderate temperature (180°C) with a light load. If E5 does not return, overcrowding or poor ventilation was the cause.
If E5 reappears after all the above steps, the internal fan or thermistor is likely faulty. Do not attempt to open the appliance’s electrical housing yourself — this requires a professional repair or replacement.
📞 When to call a professional
If the E5 error persists after cleaning the vents, repositioning the unit, and testing with a small load, the fault is most likely an internal component — either a failed circulation fan or a defective thermistor. Contact Breville customer support (0345 130 7532) first, as the unit may still be under warranty. If out of warranty, a small appliance repair technician can diagnose and replace the faulty part; tell them you’re getting a persistent E5 overheating error after ruling out ventilation causes.
⚖️ Repair or replace?
Breville air fryers typically retail between £60–£180 new in the UK. A professional repair for a fan or thermistor replacement will cost £50–£90 in labour alone — often not economical on entry-level models. If your air fryer is over 3 years old and out of warranty, replacing it is usually the smarter financial decision; if it’s a higher-end model under 2 years old, a repair is worth pursuing.