- Appliances
- Cooktops
E4
Electrolux E4 on induction hob: overheating protection active
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
On Electrolux induction hobs, E4 (or E401 to E433) means the overheating protection has kicked in. Switch the hob off, lift all pans off, let it cool, confirm your cookware works on induction and reset the power at the circuit breaker.
Safety first
Stop and check this first
- The glass can stay very hot after the warning even when the display looks normal; while the residual heat H is lit, keep hands and heat-sensitive items off it.
- Electrolux advises against using the hob until the problem is fully fixed; if E4 returns with suitable pans, leave it switched off at the breaker until the visit.
Safe checks you can perform
- Switch off, clear the pans and let it cool
- Magnet test on the base of your pans
- Power reset at the circuit breaker
Leave these tasks to a qualified professional
- Do not attempt this professional task: Hob installation check
- Do not attempt this professional task: Fault memory readout and zone test
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Hob installation check
What they doThe engineer checks how the hob is fitted and wired in, since Electrolux names installation as a possible cause of overheating.
They must show youhow the hob sits in the worktop and the supply voltage measured at its connection.
In writingthe installation condition found and what was corrected.
Fault memory readout and zone test
What they doIn service mode the engineer identifies which zone and temperature sensor raised the warning, then runs that zone with a compatible pan for several minutes.
They must show youthe code stored in memory and the zone heating without the protection tripping.
In writingthe stored code, the measured value of that zone's sensor against its reference, any part replaced and the test result.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Switch off, clear the pans and let it cool
- Who:
- you, no tools needed.
- How:
- turn the hob off with its power key, move every pot and pan off the glass and wait for the surface to cool without touching it. Electrolux says the error should disappear once the temperature drops.
- Result that matters:
- E4 gone once the hob is cold; the residual heat H staying lit for a while is normal.
- If the code has cleared:
- carry on cooking and note which pan and power level you were using when it appeared.
- If E4 is still shown on a cold hob:
- test your cookware next, then reset the power.
- Evidence to keep:
- a photo of the display with the exact code (E4, E401, E431 and so on) and the zone it appeared on.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
Magnet test on the base of your pans
- Who:
- you.
- How:
- hold a kitchen magnet against the bottom of each pan you use on that zone. Electrolux treats a firmly sticking magnet as induction compatible and a magnet that does not stick as not compatible. Also check the base sits flat rather than warped.
- Result that matters:
- only flat, magnetic-based cookware in use on the hob.
- If a pan fails the magnet test or has a bowed base:
- stop using it on the induction hob.
- If every pan passes:
- reset the hob at the consumer unit.
- Evidence to keep:
- a photo of the pan that triggered the code and of the magnet test result.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
Power reset at the circuit breaker
- Who:
- you.
- How:
- a built-in hob is hardwired, so there is no plug to pull and no cable to touch: switch off its dedicated breaker or safety switch, wait at least 30 seconds, switch it back on and turn the hob on.
- Result that matters:
- the hob starting without a code and heating normally.
- If it works after the reset with suitable pans:
- keep using it and note whether the warning ever returns.
- If E4 comes back even with compatible cookware:
- stop using the hob and book an Electrolux service engineer.
- Evidence to keep:
- the time of the reset and, if the code returned, which zone and after how many minutes.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Electrolux
- Product type
- Cooktops
Known code variants
- Bosch E4
- calentador Junkers E4
- Daitsu E4
- E04
- E 4
- E401
- E402
- E403
- E421
- E422
- E423
- E431
- E432
- E433
- Electrolux cooker E4
- Electrolux hob E4
- Electrolux hob E401 overheating
- Electrolux induction hob error E4
- Electrolux placa E4
- error E4 lavadora Haier
- error E4 lavavajillas Fagor
- error E4 placa inducción Electrolux
- Fagor 3LVF-623.1 E4
- Fagor dishwasher E4
- Fagor dishwasher error E4
- Fagor dishwasher overflow E4
- Fagor lavavajillas E4
- Haier E4 error washer
- Haier E4 lavadora
- Haier washer E4 not filling
- Haier washing machine E4
- Hydronext 5600S E4
- Hydronext 5700S E4
- Junkers E4
- lavadora Haier E4 no coge agua
- lavavajillas Fagor rebose E4
- Mitsubishi E4
- Mitsubishi Electric E4
- Mr. Slim E4
- PKA E4
- placa Electrolux E401 sobrecalentamiento
- vitro Electrolux E4
What it means
Electrolux UK's support article for induction hobs and cookers with an induction hob groups E4, E401, E402, E403, E421, E422, E423, E431, E432 and E433 as a sign that the overheating protection is operating. Electrolux links it to an installation issue or unsuitable cookware and says the code should clear once the hob cools, while the residual heat H may stay on for a while. This is a general article, so your exact model may behave differently. An E4 reading on its own does not show that any part has failed.
Warnings and stop conditions
- Loweditorial warning
The glass can stay very hot after the warning even when the display looks normal; while the residual heat H is lit, keep hands and heat-sensitive items off it.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
- Mediumsource verified
Electrolux advises against using the hob until the problem is fully fixed; if E4 returns with suitable pans, leave it switched off at the breaker until the visit.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
Symptoms and causes
Probable causes · in order
- Cookware not suited to inductionCommon
Electrolux asks for iron or iron-based pans with a flat base; a pan that conducts poorly can let the cooking zone run too hot.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
- Zone overheated after long useCommon
The protection trips when a cooking zone passes its temperature limit; removing the pan and letting the glass cool should clear the warning.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
- Installation issuePossible
Electrolux names an installation issue as a possible source of the warning; checking how the hob is fitted and connected is a job for the installer or a service engineer.
Evidence: Hob displays error message E4 / E401 / E402 / E403 / E421
Virtual technician
Does E4 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
La placa muestra el mensaje de error E4/E401/E402
Electrolux · 2026 · official_doc
- 2
Hob displays error message E4 / E401 / E402 / E403 / E421
Electrolux · 2026 · official_doc
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