Smeg E2 fault codewhat it means and how to fix it
Overheating of the inductor on the hob, but E2 is also in Smeg’s pyrolytic oven list. Which display it is on changes the answer completely.
Take care
Which display is showing E2?
The right answer depends on what you can see. Pick the one that matches.
Choose the option on the left that matches what your appliance is doing, and the answer for that case appears here.
Which display is showing E2?
This is the induction reading: excessive temperature of the inductor, with an empty pan the named cause. It is protection rather than a fault, and Smeg publish a wait-to-cool remedy.
Remove the pan, let the zone cool until the residual heat symbol clears, then try again with something in the pan.
Which display is showing E2?
Then you are in the pyrolytic oven list, where Smeg confirm an engineer visit is required and publish no meaning for the code at all. Nothing on the hob side of this page applies to you.
Contact the Smeg service centre. Note the function that was selected and the set temperature before you ring, which is their own instruction for oven error messages.
Which display is showing E2?
An over-temperature code on a cold zone is the case Smeg escalate themselves: the reading is wrong rather than the temperature being high, and they attribute that to a defective inductor sensor.
Stop waiting and stop retrying. Book a service visit and mention that the zone was cold, because that detail is what separates this from the ordinary case.
What E2 means
Before anything else: look at where the code is showing. Smeg publish E2 twice, in two different lists, with two different outcomes. In the induction list it is excessive temperature of the inductor, described as the cooking zone overheating with empty cookware, and the published remedy is to wait for the cooking zone to cool. In the pyrolytic oven list it is one of ten codes Smeg confirm require an engineer visit and for which they publish no meaning whatsoever.
On a range cooker with an induction top and a pyrolytic oven, both apply to the same appliance, so the characters on their own do not tell you which fault you have. A code in a zone display on the hob is the first. A code on the main oven display is the second. Taking the hob reading, the phrase Smeg use is worth reading closely, because "empty cookware" is the cause rather than an aside. An induction zone puts its energy into the base of the pan, and a pan with food or water in it carries that heat away as fast as it arrives. An empty pan, or one that has boiled dry, has nothing to take the heat, so the base climbs far beyond normal cooking temperature and radiates back down through the glass into the coil assembly beneath it. The electronics have a temperature limit, and E2 is the hob reaching it and stopping. That is protection working, not a failure. It follows that the remedy is genuinely just time.
Smeg’s residual heat indicator is a useful gauge here, and it is a symbol rather than the letter H other brands use: it stays on while the zone is above 60 degrees Celsius and clears below it. Waiting until it clears is a better guide than counting minutes. Smeg then publish the important escalation. If the error persists after the zone has cooled, they say the anomaly could be caused by a defective inductor sensor and an engineer is needed. That is the same component they name outright in E9, so a hob that shows E2 on a cold zone is really reporting the E9 problem, and repeatedly waiting for a zone that is already cold will get you nowhere.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| An empty or boiled-dry pan on the zone | Smeg name this in the code description itself. With nothing in the pan to absorb the heat, the base and the glass above the coil climb well past cooking temperature. | Common |
| Sustained high power or boost across the top | Several zones working hard for a long stretch puts more heat into the assembly under the glass than a single pan ever does. | Common |
| Heat from the oven cavity below | On a range cooker the hob electronics sit above the ovens rather than in a cool cabinet, so a long roast raises the temperature they start from. | Occasional |
| Restricted ventilation around the appliance | The air path the fitting instructions call for gets closed off by tight cabinetry or a blocked plinth, and the assembly then cannot shed heat at the rate it was designed to. | Occasional |
| A defective inductor sensor | Smeg’s own escalation. If the code survives the zone cooling, the temperature reading itself is wrong and the hob is being protected against a number rather than a real fault. | Occasional |
What to try yourself
Establish which display the code is on. A hob zone display and the oven display mean two entirely different Smeg codes that happen to share two characters.
Take the pan off the zone, especially if it has boiled dry, and put it somewhere heatproof rather than back on the glass.
Leave the zone alone until the residual heat symbol clears. Smeg publish that it goes out below 60 degrees Celsius, which is a better guide than guessing at minutes.
While you wait, check that nothing is blocking the ventilation path around and beneath the cooker.
Try the zone again with a pan containing water. If it works normally, the code did its job and there is nothing to repair.
If E2 shows on a zone that is stone cold, stop retrying and book a service visit, quoting Smeg’s own line about the inductor sensor.
Do not pour cold water onto a zone or onto a boiled-dry pan to speed the cooling up. Thermal shock cracks ceramic glass, and a cracked hob top is a far larger repair than the one you started with.
Get a qualified appliance engineer to look at your Smeg E2
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What it costs to fix
Typical repair cost
£0–£300
Time on site
45 minutes
Nothing for the ordinary case, which is a dry pan and a wait. A service visit and an inductor or sensor replacement if the code appears on a cold zone, which is the branch Smeg escalate.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related Smeg fault codes
- SHOUsually simple to fixNot a fault at all. The oven is in showroom mode, so the control panel works and no heating is possible. Smeg publish how to switch it off.Related: same brand
- U400Get it checkedSmeg publish six words for this: wrong connection, connect the equipment properly. On a hardwired range cooker that means an electrician rather than anything you can do.Related: same brand
- Er03Usually simple to fixA knob or button is being read as held on. On these knob-operated range cookers that usually means a knob kept turned to A too long. Release it, then clean the hob as Smeg say.Related: same brand
- E6Get it checkedPower failure to the power board. Smeg publish a timed remedy rather than a flick of the switch: turn the appliance off for a full five minutes.Related: same brand
- E5Get it checkedThe hob has judged the mains voltage signal invalid. Smeg say to check the supply voltage, which on a hardwired cooker is an electrician’s job rather than yours.Related: same brand
- EAGet it checkedA power circuit board error on the induction hob. Rangemaster publish an EA too, describing something different, so check which brand’s table you are reading.Related: same brand
Own a Smeg range cooker? Save it and its codes come first next time.
Related guides
Common questions about Smeg E2
How do I know whether my E2 is the hob one or the oven one?
By which display it appears in, and there is no other way to tell. Smeg publish E2 in their induction list as an inductor over-temperature with a wait-to-cool remedy, and separately in their pyrolytic oven list as one of ten codes needing an engineer. A range cooker can have both systems, so the code alone is genuinely ambiguous and anyone who answers it without asking is guessing.
I boiled a pan dry. Have I damaged the hob?
Probably not, and the code appearing is the reason. The hob measured a temperature beyond what the assembly under the glass is designed for and stopped, which is what it is meant to do. Let it cool fully, then use the zone normally and watch it for a few days. What does cause damage is cooling it fast with water, or repeatedly ignoring the code and carrying on.
How long should I wait?
Until the residual heat symbol has gone out, rather than for a set number of minutes. Smeg publish that the symbol clears once the zone drops below 60 degrees Celsius, which makes it a direct readout of the thing you are waiting for. A heavy pan that has been dry on boost will hold heat for a surprisingly long time.
It keeps coming back even after cooling.
Then follow Smeg’s own escalation rather than waiting again. They say that if the error persists after the cooking zone has cooled, the anomaly could be caused by the defective inductor sensor and an engineer is needed. That is the component they name in E9, so the hob is measuring wrongly rather than running hot.
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer support portal
- Manufacturer technical and service documentation
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.