Air Fryer
E2
The E2 error code on a Salter air fryer indicates a temperature sensor fault — specifically, the appliance is detecting an abnormal or out-of-range reading from its internal thermistor, which monitors the cooking chamber’s heat. While it can sound alarming, in many cases this is a fixable issue you can resolve at home without any specialist tools. In this guide, you’ll learn exactly what triggers the E2 code, the most common causes on Salter air fryer models, and a clear set of steps to get your appliance working again safely.
What does this error mean?
The E2 error code on Salter air fryers is a temperature sensor error. Your air fryer uses a small electronic component called a thermistor — a temperature-sensitive resistor — to continuously monitor the heat inside the cooking chamber. When the control board receives a reading from that sensor that is either too high, too low, or simply implausible (for example, a value that suggests the sensor has failed or become disconnected), it halts operation and displays E2 to protect both you and the appliance from potential overheating or unsafe operation. In plain terms: your air fryer’s ‘thermometer’ is either broken, blocked, or giving the control board a reading it doesn’t trust. The appliance is not necessarily permanently damaged — it is doing exactly what it should by stopping before a problem becomes dangerous.
Est. repair cost
DIY thermistor replacement: £8–£25 for parts. Professional repair (labour + parts): £50–£90. Replacement Salter air fryer: £40–£130 new.
🔍 Likely causes
🛠️ Step-by-step fix
Step 1 — Power off and unplug completely: Switch off the air fryer, unplug it from the wall socket, and leave it to cool for at least 30 minutes before doing anything else. This is essential for safety and also resets any thermal protection that may have tripped.
Step 2 — Perform a hard reset: Once cooled, plug the unit back in and switch it on without selecting any programme. Many Salter air fryers will clear a transient E2 fault after a full power-down cycle. If the error is gone, run a short 5-minute test at 180°C to confirm it has resolved.
Step 3 — Check the ventilation clearance: Ensure there is at least 10–15 cm of clear space on all sides of the air fryer, and that the rear and top vents are completely unobstructed. Move the appliance away from walls, under-cabinet spaces, or anything trapping heat around it. This costs nothing and fixes a surprising number of E2 faults.
Step 4 — Remove and thoroughly clean the basket, tray, and cooking chamber: Pull out the basket and any accessories. Using a soft cloth or non-abrasive sponge with warm soapy water, clean the interior walls and the roof of the cooking chamber. Pay particular attention to the area around the heating element and any small protruding components — a heavy grease coating on or near the thermistor is a common cause of inaccurate readings. Do not use metal scourers or harsh chemical sprays. Allow everything to dry fully before reassembling.
Step 5 — Inspect the thermistor sensor visually: With the basket removed and the unit unplugged, shine a torch into the cooking chamber and look for the thermistor — it typically appears as a small metal probe or bead on a short wire, positioned near the heating coil at the top of the chamber. Check whether it looks visibly burnt, corroded, snapped, or coated in heavy grease. If it appears physically damaged, this is your likely culprit.
Step 6 — Gently clean the sensor if accessible: If the thermistor is within safe reach inside the chamber (without needing to dismantle the unit), use a cotton bud lightly dampened with isopropyl alcohol (IPA, available from Wilko or Amazon for around £3–£5) to carefully clean around the sensor tip. Do not pull, bend, or apply any force to the sensor or its wiring.
Step 7 — Test the appliance again: Reassemble, plug back in, and power on. Set a short cook cycle and monitor whether E2 reappears. If the fryer runs without error, the issue was likely grease build-up or a transient fault.
Step 8 — Check your Salter model’s manual for a specific reset procedure: Some Salter air fryer models (including the EK4549, EK4750, and dual-drawer variants) have a specific button-hold reset sequence. Check the manual (available free on the Salter website at salterhousewares.co.uk) for your model number, usually printed on a label underneath the unit.
Step 9 — Contact Salter customer support if still under warranty: Salter products typically come with a 2- or 3-year guarantee. If your air fryer is within its warranty period, do not attempt any further dismantling — call Salter directly on their UK helpline or use their online support portal. Opening the unit may void your warranty.
Step 10 — Do NOT attempt to open the outer casing or access the control board yourself: If the steps above have not resolved the E2 error, the fault likely lies with the thermistor wiring harness, the sensor itself, or the control board — all of which are inside the sealed electrical housing. Accessing these components involves working with mains-voltage circuitry and should only be carried out by a qualified electrician or appliance repair technician. Do not proceed further with DIY at this point.
📞 When to call a professional
You should stop DIY attempts and contact a professional repair technician if: the E2 error persists after completing all the steps above; you can see visible burn marks, melted plastic, or a strong burning smell coming from the appliance; the thermistor wire appears broken or disconnected inside the chamber; or the error appeared suddenly after a power surge or the appliance being dropped. When you call, tell the engineer the following: ‘My Salter air fryer is displaying an E2 error code, which I understand relates to the temperature sensor. I have power-cycled the unit, cleaned the interior including the sensor area, checked ventilation clearance, and attempted a manual reset — the fault persists.’ This saves diagnostic time and money. For UK appliance repair services, look for engineers who are registered with the Domestic Appliance Service Association (DASA) or check Checkatrade for vetted local specialists. If your Salter is still within its guarantee period, always contact Salter’s UK customer service first at salterhousewares.co.uk before paying for third-party repair.
⚖️ Repair or replace?
For most Salter air fryers, the honest repair-versus-replace calculation is straightforward. Salter air fryers typically retail between £40 and £130 depending on the model, and spare parts — including replacement thermistors — are available for many models via Espares.co.uk or Amazon UK, usually costing £8–£25 for the sensor alone. If the fault is a failed thermistor and nothing else, a confident DIYer with basic electronics knowledge could replace it for under £25 in parts, though this does require opening the unit. A professional appliance repair, including labour, is likely to cost £50–£90, which may approach or exceed the replacement cost of a budget Salter model. General guidance: if your Salter air fryer is less than 2 years old and still under warranty, pursue the warranty claim first — this should cost you nothing. If it is 2–4 years old and a technician quotes more than 50% of the current replacement price, replacement is likely the better value. If it is over 4 years old or a budget model under £60, replacing with a new unit is almost certainly more cost-effective than a professional repair. Salter’s parts availability is reasonable for their more popular models but can be limited for older or discontinued ranges, so confirm part availability before committing to a repair quote.