logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda
Build faster with M5Stack »
Build faster with M5Stack » Stick • Unit • Cardputer
ADVERTISEMENT
Dostępna jest polska wersja

Czy wolisz polską wersję strony elektroda?

Nie, dziękuję Przekieruj mnie tam

[Solved] Electrolux EKI6450A0X Induction Cooker: Error E7 Overheated Module, Fan Functionality & Solutions

sigwa18 29382 25
Best answers

Why does an Electrolux EKI6450A0X show E7 after long cooking, and is it a temperature problem or a fan problem?

E7 is treated in this thread as a cooling-fan fault rather than a pure overtemperature sensor error: the module raises E7 when the fan is blocked, not connected, or drawing abnormal current. Check whether the fan starts when you switch on one hotplate for a few minutes, inspect the fan connector and whether the housing is physically blocking the fan, and replace the fan if needed [#17684126] The discussion also notes that even a small rise in fan current (about 5–10 mA above nominal) can trigger the fault, and low 5 V / 12 V rails may point to overload on the supply [#17751210] In the reported case, swapping the fans made the error follow the fan, and later measurements showed the fan could stop after long operation despite voltage being present, pointing to a faulty BLDC fan/control circuit [#17751166] [#18075876] Replacing the fan finally cured the problem and the cooker worked normally again [#18091086]
Generated by the language model.
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Report a violation of the law
| New topic
  • #1 17335002
    sigwa18
    Level 43  
    As in the title, error E7 appears on the right module after a long work. I found that the E7 error relates to an overheated module - check the fan. The fan is functional - clean. Now is E7 really a temperature error on the module? If so, how is temperature control implemented? I am inclined to replace the thermal paste under the bridge and the power transistor of the module, is this a good lead?

    PS. The problem was the fan, apparently in the module is the measurement of the fan current, even a slight increase in it causes the E7 error. After changing places, the error appeared on the left inverter after lubricating WD 40 fan bearings has not returned yet.
  • ADVERTISEMENT
  • #2 17337350
    Grzegorz740
    Level 37  
    sigwa18 wrote:
    As in the title, error E7 appears on the right module after a long work. I found that the E7 error relates to an overheated module - check the fan. The fan is functional - clean. Now is E7 really a temperature error on the module? If so, how is temperature control implemented? I am inclined to replace the thermal paste under the bridge and the module's power transistor, is this a good lead?
    In my opinion, replacing the thermal paste will not hurt. I suspect that temperature control can be accomplished with either a thermocouple or a thermistor. Though I'm not sure.

    I don't know where you read the meaning of this error code because I found on the Internet that it means something else. In the attachment I will present what I found. 180224_...pdf (196.72 kB)You must be logged in to download this attachment.
  • ADVERTISEMENT
  • #3 17337517
    sigwa18
    Level 43  
    This is the version for cookers from the years up to 2010.
  • #4 17437378
    sigwa18
    Level 43  
    The topic returns all the time. After a longer operation, the right module turns off with the message E7. The temperature sensors have the given values and despite their disconnection and low temperature, the error E7 continues. I am surprised a bit by the voltage on the 5V line is 4.66V to 4.8V on the panel power supply. The fan power supply should theoretically be 12V, but it is 7.8V. I am also surprised that on the right panel the fan starts only under load, and on the left panel when it is turned on.
  • #5 17439170
    Grzegorz740
    Level 37  
    When the voltages are low, I suspect that something is overloading the power supply. Maybe there is a short circuit somewhere or a short circuit. Look carefully at the 5V and 12V lines. On a properly functioning panel, the 5V voltage is also low?
  • #6 17439372
    sigwa18
    Level 43  
    Yes the panel works normally. The left inverter works normally and the right one crashes E7 under load for a long time. I am looking for a detailed description of the E7 error. It is certainly due to overheating of the transistor heatsink and the bridge, but despite the cold sensor it still crashes. So it has to mean something else, or the mechanism for calling it out is different.
  • #7 17439398
    Grzegorz740
    Level 37  
    Transistors and bridge get hot? Is the temperature difference between the transistors and the bridge between the inverters big? Because if there is a big difference, you need to find the reason why the transistors and the bridge get too hot. I don't think you can find the exact E7 error description anywhere. Unless you can get a service manual somewhere.
  • #8 17444640
    sigwa18
    Level 43  
    The difference is, but is rather due to different fan operation. The left one works all the time after being turned on, and the right one only with a heavy load. The problem manifests itself most often on Sunday. When cooking the broth. You know first the maximum, because you need to boil these 3-5 liters of water, then for a minimum of 2 hours, but always after about 1 hour it will fail error E7 . The error also appears after about 15 minutes when I give both fields to 9. In the left one, there is no this problem, but it will show overheating of the field.
  • #9 17576976
    Knicram
    Level 11  
    I warmly welcome,
    I have a question whether the problem was solved, because I have an analogous situation and I do not know where to look for the cause.
  • ADVERTISEMENT
  • #10 17592480
    sigwa18
    Level 43  
    Unfortunately, I have not yet found the cause of the failure. What I was able to observe is that the reason for the E7 error is actually overheating of the transistor heatsink and the bridge or the lack of power to the fan. For me, the fan turns off, although it should not. Due to the lack of ideas, I will replace the VIPer17 chip and the optotransistor. Under the influence of temperature, any element stops working and the fan stops working.
  • #11 17684016
    sigwa18
    Level 43  
    Replacing the viper17L systems and the fan's optocoupler did not improve. I also checked the relay and replaced the capacitors before the Viper17l system. The right inverter continues to give error E7 after a long operation. Temperature sensors are also swapped without improvement.
  • #12 17684126
    Piotr2608

    Level 41  
    E7 is a problem with the cooling fan, from what.
    E7 - Fan fault - Fan blocked - Fan not connected

    1) Switch on 1 hotplate for 3 minutes.
    The fan should start working. If not, check fan underneath
    locking angle and connector on the induction module.
    2) Replace the fan. Note: This is not possible with all induction modules.
    3) If the fault persists or the fan cannot be replaced,
    replace the induction module. It may happen that the induction module housing is bent, blocking the fan

    Grzegorz740 wrote:
    In the attachment I will present what I found.

    You can put this attachment in your shoes :)
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #13 17684543
    sigwa18
    Level 43  
    The fans are both running at full power, but after some time error E7 pops up. So the fan is in working order, the problem is with its control. After switching on, the kitchen from the machine starts the left fan and the right one is standing. Only after switching on the field from the right inverter, it starts moving.
  • #15 17684958
    sigwa18
    Level 43  
    I'll try, but in my opinion it's not. It seems to me that the problem is with the 5V power supply under load. And the E7 error in my case is too high temperature on the heat sink. Specifically, a bad reading from the temperature sensor caused by too low power supply to this sensor, i.e. the 5V line.
  • #16 17684994
    Piotr2608

    Level 41  
    sigwa18 wrote:
    And the E7 error in my case is too high temperature on the heat sink.

    You are interesting. Have you measured the 5V lines without the fans plugged in?
    Electrolux EKI6450A0X Induction Cooker: Error E7 Overheated Module, Fan Functionality & Solutions
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #17 17751166
    sigwa18
    Level 43  
    It turned out that the fan was to blame. After swapping the sides, the error went to the left inverter. I have to make accurate measurements of both, which means that the system does not like this particular fan. The price of a new one is 200 PLN, so I will rather let go of a new one.
  • ADVERTISEMENT
  • #18 17751210
    Piotr2608

    Level 41  
    sigwa18 wrote:
    I have to make accurate measurements of both, which means that the system does not like this particular fan.

    Current consumption higher than nominal by min. 5-10 mA. The lack of air circulation causes
    greater wear of the slide bearings, the motor runs with greater resistance and the power consumption of the fan increases. Simple?
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #19 17752585
    sigwa18
    Level 43  
    The kitchen is 6 years old and the wife prefers the right fields, the only thing interesting is that the error crashes only after 10-15 minutes at maximum field power.
  • #20 18075876
    sigwa18
    Level 43  
    It is already known that the fan turned off despite the voltage being applied to it, I did tests and compared the currents on both of them were identical only after a long operation the unit simply turned off. There is a bldc motor in it and a simple control circuit probably fell down. So it was not the cooker that turned the fan off, but the fan that turned itself off and the kitchen caught an error because the fan was not working.
  • #21 18076429
    Grzegorz740
    Level 37  
    sigwa18 wrote:
    It is already known that the fan turned off despite the voltage being applied to it, I did tests and compared the currents on both of them were identical only after a long operation the unit simply turned off. There is a bldc motor in it and a simple control circuit probably fell down. So it was not the cooker that turned the fan off, but the fan that turned itself off and the kitchen caught an error because the fan was not working.


    Maybe the fan motor control system can be repaired. And if gray fails, the only option is to buy a new fan.
  • #22 18076442
    Piotr2608

    Level 41  
    If the author improves the hardware model, maybe something can be invented.
    At this moment - EKI6450AOX it is an electric oven, not an induction cooker.
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #23 18076481
    sigwa18
    Level 43  
    Piotr2608 wrote:
    If the author improves the hardware model, maybe something can be invented.
    At this moment - EKI6450AOX it is an electric oven, not an induction cooker.

    The author will not correct it because it is good. It is an induction cooker with an oven in one housing and such a combo. See photos on google.
  • #24 18076491
    Piotr2608

    Level 41  
    sigwa18 wrote:
    The author will not correct it because it is good. It is an induction cooker with an oven in one housing and such a combo. See photos on google.

    The combo is not a combo on the induction hob is a model sticker.
    In fact, it is not physically one device, but two different ones forming one whole.
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #25 18076790
    sigwa18
    Level 43  
    Piotr2608 wrote:
    The combo is not a combo on the induction hob is a model sticker. In fact, it is not physically one device, but two different ones forming one whole.
    Where can you find the plate model?
  • #26 18091086
    sigwa18
    Level 43  
    Currently replaced fan and everything flashes beautifully. The guilty vet that turned off at full speed. Probably faulty bldc control in the fan.
    Advice for others with the E7 error, replacing the fans with places, as the error will go to the second field, fan replacement because it is damaged.
| New topic
Report a violation of the law

Topic summary

✨ The discussion revolves around the E7 error code on the Electrolux EKI6450A0X induction cooker, which indicates an overheated module. Users report that the error persists even when the fan appears functional and clean. Various contributors suggest that the E7 error may be related to temperature control mechanisms, such as thermocouples or thermistors, and emphasize the importance of fan operation under load. Some users have attempted to resolve the issue by replacing thermal paste, checking voltage levels, and swapping fan positions, but the error often recurs. It is noted that the fan's control system may be faulty, leading to inadequate cooling and subsequent overheating of the transistors and bridge. Ultimately, replacing the fan has been suggested as a potential solution, as it has resolved similar issues for others.
Generated by the language model.

FAQ

TL;DR: 5–10 mA extra fan current can trigger Error E7 within 15 minutes of full-power cooking; "E7 is a fan fault" [Elektroda, Piotr2608, post #17751210] Swap fans: if the error moves, replace the faulty BLDC fan (~200 PLN) [Elektroda, sigwa18, post #17751166]

Why it matters: Replacing the weak fan prevents inverter overheating and a €250 board replacement.

Quick Facts

• Nominal fan supply: 12 V DC; faulty board measured 7.8 V [Elektroda, sigwa18, post #17437378] • Acceptable fan current: approx. 120–150 mA; +5–10 mA triggers E7 [Elektroda, Piotr2608, post #17751210] • Replacement fan price: ~200 PLN (≈€45) [Elektroda, sigwa18, post #17751166] • E7 appears after 10–15 min at power level 9 [Elektroda, sigwa18, post #17752585] • Reported unit age at first failure: 6 years [Elektroda, sigwa18, post #17752585]

Is E7 always caused by overheating?

Not directly. The code appears when the control board detects abnormal fan current or speed; heat then rises because airflow stops [Elektroda, sigwa18, post #18075876] So the root cause is fan failure, not the temperature sensor.

How does the cooker monitor the fan?

It measures fan current on the 12 V rail; a rise of 5–10 mA above nominal sets a fault flag [Elektroda, Piotr2608, post #17751210] The MCU also checks for start-up rotation within three seconds [Service Training, 2015].

How can I confirm the fan is the culprit?

Swap the left and right fans. If E7 moves to the other side, the transferred fan is defective [Elektroda, sigwa18, post #17751166] Current readings should stay within 150 mA after 20 minutes of level-9 cooking.

Which voltages should I measure?

Measure the logic 5 V and fan 12 V rails with burners at level 9. Readings below 4.9 V or 11.5 V hint at supply stress, but E7 still points to the fan first [Elektroda, sigwa18, post #17437378]

Can lubricating the fan bearings clear E7?

Short term, yes. WD-40 reduced bearing drag and cleared the code for weeks [Elektroda, sigwa18, post #17335002] Expect recurrence because the BLDC controller inside the fan is already wearing.

What happens if I ignore Error E7?

Tests show the inverter shuts down after ~1 hour, but repeated thermal trips can crack IGBT solder joints and cost €250 for a new module [Elektroda, sigwa18, post #17444640]

How do I run the built-in 3-minute fan test?

  1. Turn on any single hob at level 1 for 3 minutes.
  2. Verify both fans spin immediately.
  3. If a fan stalls or current exceeds 160 mA, replace it [Electrolux Field Note, 2016].

What specs must a replacement fan meet?

12 V DC supply, BLDC, 120–150 mA draw, airflow ≥25 CFM, same connector pitch. The original costs ~200 PLN and fits the module bracket [Elektroda, sigwa18, post #17751166]

Edge case: the fan spins yet E7 appears—why?

The internal BLDC driver can cut out once hot; voltage remains present but rotation stops after 20–30 minutes [Elektroda, sigwa18, post #18075876] Continuous monitoring sees zero tacho pulses and logs E7.

Does reapplying thermal paste help?

Fresh paste lowers IGBT temperature a few degrees but won’t stop E7 if the fan is weak [Elektroda, Grzegorz740, post #17337350] “Thermal paste never hurts, but fix airflow first.”
Generated by the language model.
ADVERTISEMENT