Smeg EA fault codewhat it means and how to fix it
A 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.
Take care
How often has EA appeared?
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.
How often has EA appeared?
That is the case Smeg’s conditional covers. The board reported something, stopped, and came back clean, and there is nothing to pursue.
Note the date and carry on. If weeks pass without a repeat, treat it as a transient rather than a warning.
How often has EA appeared?
A code that arrives more often is a component degrading rather than a glitch, and Smeg’s own escalation applies as soon as the error persists.
Book a service visit and give them the frequency. An increasing rate is genuinely useful information about which parts to bring.
How often has EA appeared?
Load-related appearances point at the power stage being stressed, which is worth reporting alongside anything you have noticed about the cooling.
Avoid boost across several zones until it has been seen, and mention any fan noise or over-temperature codes when you book.
What EA means
Smeg publish EA as a power circuit board error, with an engineer needed if the error persists. That is the whole of it, and the conditional at the end is the only instruction the owner gets: persistence is what separates something to escalate from something that has already gone away. In practice that sanctions one power cycle and a period of watching, and it does not sanction resetting the same code every evening for a fortnight. Two things about this code are worth knowing before you look it up anywhere else. The first is a trap. Rangemaster also publish an EA on their induction hobs, and it is a different description of a different aspect of a power-stage fault. Both are genuine manufacturer codes, they share two letters, and their meanings must not be merged.
If you have arrived here after reading an EA explanation that mentioned coil saturation or gate voltage, that was Rangemaster’s table and not Smeg’s. Range cooker owners are unusually exposed to this kind of confusion because several brands in this market share platforms and documentation styles, and a code that looks familiar from another brand is not the same code. The second is that EA is one of the codes that exists in only one of Smeg’s two official lists. It is in the 2023 induction article with the meaning above, and it is absent from their 2018 article altogether, alongside E4 and E8.
So if you check the older page, you will not find EA at all, and its absence there says nothing about whether it is real. It is Smeg’s code, published by Smeg, on the newer of their two pages. As for what it means in the appliance, Smeg’s phrase points at the board that handles power to the induction coils rather than at the coils or the supply. It is worth resisting the urge to read more into their wording than they wrote, because they publish three codes in this area and clearly distinguish them: EA for a power circuit board error, E6 for a power failure to the power board, and E5 for an invalid mains signal. What the owner needs from that is simply to quote the right one. An engineer who is told EA when the display showed E6 starts in the wrong place.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| A transient the board recovered from | Why Smeg gate escalation on persistence. A one-off that never returns after a power cycle needed nothing doing to it. | Common |
| A fault in the board’s power circuitry | The literal reading of Smeg’s wording, and where a code that keeps returning ends up. Power switching components fail with age and heat. | Common |
| Heat stress inside the appliance | Power electronics in a range cooker live above oven cavities and behind a glass top, so cooling problems shorten their life measurably. | Occasional |
| A supply that keeps stressing the power stage | Smeg publish separate codes for supply problems, but an unstable circuit works the same components harder than they were meant to be worked. | Occasional |
| An internal connection degraded by heat cycling | A plug or crimp that has loosened over years makes a healthy board misreport, which is why a diagnosis is not the same as a board replacement. | Occasional |
What to try yourself
Write down exactly what the display showed. EA, E6 and E5 are three different Smeg codes and quoting the wrong one sends the diagnosis off in the wrong direction.
Switch the cooker off at the wall switch, leave it a minute, and switch it back on once.
Use it normally and watch. Smeg escalate this code only if the error persists, which makes the following days the actual test.
Ignore any EA explanation you have read for another brand. Rangemaster publish an EA of their own and it describes something different.
If it returns, stop cycling the power and book a service visit instead.
Tell them how often it has appeared and what you were cooking. Frequency and load are the two things that shorten this diagnosis.
Do not open the appliance to look at the board. Induction power boards run at mains potential and retain charge after the supply has been removed, and there is nothing on them for an owner to inspect.
Get a qualified appliance engineer to look at your Smeg EA
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–£350
Time on site
1 hour
Nothing if a single appearance never returns, which is the case Smeg’s conditional wording covers. A power board is the most expensive part in an induction range cooker, and on an older appliance the quote may approach the value of the hob.
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
- 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: power board and electronics
- E9Get it checkedSmeg name the part outright: the inductor temperature sensor is defective. It is the sensor that makes the hob’s own over-temperature protection possible.Related: power board and electronics
- 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
- E2Get it checkedOverheating 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.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
Own a Smeg range cooker? Save it and its codes come first next time.
Related guides
Common questions about Smeg EA
I found an EA explanation for another brand. Does it apply?
No. Rangemaster publish an EA for their induction hobs which describes a different aspect of a power-stage fault, and the two brands’ wording must not be merged. The letters match; the codes do not. This matters more in range cookers than in most categories, because several brands here share platforms and their documents look alike.
EA is not on the Smeg page I found. Is it a real code?
It is, and the gap is a known difference between Smeg’s two official articles. EA appears in their newer induction list, updated in March 2023, together with E4 and E8, and none of those three are on the older 2018 page. Both pages are Smeg’s. The absence of a code from the older list tells you about the list, not about the code.
Can I keep using the hob?
After a single appearance that clears, yes, and Smeg’s wording effectively allows for that by escalating only if the error persists. What is not worth doing is cycling the power every time it returns. That is not a repair, and repeatedly running power electronics that have already reported a fault tends to turn a diagnosis into a board replacement.
Is it the same as E6?
Smeg keep them separate, so no. EA is described as a power circuit board error and E6 as a power failure to the power board, and E6 has a published five minute power-down remedy while EA has none. We are not going to speculate about how their engineers distinguish the two internally, but they publish them as different codes, so quote the one you actually saw.
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.