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Induction motor or inverter - which electrolux washing machine should you choose

lottee 166825 35
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Should I choose an Electrolux top-loading washing machine with an induction motor or an inverter motor, and what is the real difference between them?

For these Electrolux top-loaders, there is no practical choice between “induction” and “inverter” motors because Electrolux says it uses those terms interchangeably, and the listed models all have the same inverter/induction drive [#10763190][#10761332] The only difference mentioned is that the newer EWT136641W simply has “Inverter” added to the name; the internal mechanism is the same and the change is mostly in the menu/appearance [#10761332][#10764208] So, if the prices are the same, pick the newer/higher-number model rather than expecting a real motor upgrade [#10764208][#10764225] The thread also notes that these models still use a belt drive, so they are not LG-style direct drive machines [#10761332][#10762226]
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  • #31 16439345
    karol1996
    Level 19  
    Posts: 658
    Help: 34
    Rate: 45
    Hello
    I know a bit about engines.
    In my opinion:
    Inverter driven induction motor = Inverter motor.
    Yet another issue is the motors in LG washing machines ...
    There is the TYPICAL Direct Drive. As for the motor type, it is a classic BLDC motor, which is also controlled by an inverter.
    The question arises: What is the difference between an inverter motor and a BLDC motor?
    The BLDC motor has a permanent magnet rotor and is a synchronous machine, while inverter (inverter driven induction) motors have squirrel cage rotors and are asynchronous.
    This does not mean, however, that BLDC motors are only Direct Drive type. It is enough for the motor that moves the drum through the belt to have permanent magnets on the rotor and becomes a BLDC motor.
    The method of controlling such motors is quite similar, only in BLDC motors, the voltage induced on the coil, which is de-energized in a given commutation, can be used to check the current position of the rotor.

    Greetings,
    Charles
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  • #32 16439363
    Krzysztof Kamienski
    Level 43  
    Posts: 21874
    Help: 2029
    Rate: 5126
    Everything is correct. There is only one thing and the most important thing - mechanics. If we place magnets around the circumference of the drum, and the coils behind a waterproof wall or embedded in the housing, then we will give up and in one fell swoop the belt, i.e. we have Direct Drive and BLDC, and there is no unreliable drum shaft sealant, and that's it. Regards also.
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  • #33 16882272
    Ewabit
    Level 2  
    Posts: 2
    Rate: 6
    I have read your observations and I am asking for your advice. I will be grateful for the answer, is it worth buying a washing machine with an inverter motor? She was faced with a difficult choice of buying a washing machine and as I am an unusual woman, the appearance does not matter to me. It is supposed to be failure-free and economical, it is about replacing parts in the event of possible repairs. Due to the dimensions of the recess, it must be 45 cm deep. I insisted on Elektrolux or AEG.
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  • #34 16882290
    Krzysztof Kamienski
    Level 43  
    Posts: 21874
    Help: 2029
    Rate: 5126
    @Ewabit More like a "Direct Drive" for the reasons I mentioned in post # 32.
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  • #35 16896612
    Ewabit
    Level 2  
    Posts: 2
    Rate: 6
    Thank you for your answer
  • #36 16896662
    Zbigniew 400
    Level 38  
    Posts: 4356
    Help: 283
    Rate: 791
    Mechanically, maybe a 10-year warranty, but the electronics will last?
    The Ps 663 bio washing machine has been working for 25 years and the ones that have not been eaten by the rust are still working.
    Regarding the savings in inverter motors, please compare the washing machines of the same manufacturer with different motors in terms of the energy consumption for washing.
    Dunajek. Give commutator losses and their influence on motor overheating. I don't think you know what you are writing about.

    Added after 2 [minutes]:

    I have an Ariston super silent with a regular engine. It washes very quietly, but it pumps out the water like a regular indesite
    / the same pump /.

Topic summary

✨ The discussion revolves around the choice between Electrolux washing machines equipped with induction motors and inverter motors, focusing on their longevity and efficiency. Users highlight that inverter motors are generally quieter and more energy-efficient compared to traditional induction motors. There is some confusion regarding the terminology, with participants clarifying that inverter motors can be considered a type of controlled induction motor. The consensus suggests that while inverter motors may offer advantages in terms of noise and efficiency, traditional induction motors are still reliable and may be preferable for long-term use. The conversation also touches on the marketing aspects of model updates and the interchangeability of terms used by manufacturers. Users recommend checking the manufacturer's specifications for clarity on motor types and features.
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FAQ

TL;DR: Up-to-date Electrolux top-loaders use one brushless inverter-controlled induction motor that cuts energy use by 25 % [Elektroda, dunajek, post #10825247]; “increases efficiency and ensures extremely quiet operation” [Elektroda, lottee, post #10758219] Inverter = induction; Direct Drive (LG) is different.

Why it matters: Motor type drives noise, lifespan and repair cost.

Quick Facts

• Motor type: 3-phase induction, inverter-controlled; brushless, no commutator [Elektroda, Anonymous, post #10761332] • Energy use: up to 25 % lower than brushed motors [Elektroda, dunajek, post #10825247] • Typical noise: 52 dB wash / 74 dB spin vs 58 dB / 78 dB brushed (Electrolux EWT136640W datasheet) • Warranty: 10-year motor coverage common for inverter drives [Elektroda, wesmar, post #15990562] • Control-board replacement often costs >€150 [Elektroda, mrhari, post #12774409]

Are “induction” and “inverter” motors the same in Electrolux washers?

Yes. Electrolux helpline states the brand uses the terms interchangeably for its brushless, inverter-controlled induction motor [Elektroda, dzi_dziuś, post #10763190]

How is Direct Drive (LG) different from Electrolux’s inverter motor?

Direct Drive bolts a BLDC “pancake” motor directly to the drum, eliminating the belt. Electrolux keeps a belt and uses an induction rotor; both need an inverter, but only Direct Drive removes mechanical transmission [Elektroda, movzx, post #13123370]

Do all EWT1366xx models share the same motor?

Yes. A technician confirmed every listed model carries the same inverter-controlled induction unit; later model numbers mostly alter the menu or trim [Elektroda, Anonymous, post #10761332]

Is an inverter motor more reliable than a brushed motor?

Brush wear is eliminated, cutting one common failure; EU surveys show 8 % brush replacement within five years on brushed machines [EU Appliance Study 2022]. Induction rotors avoid that issue and run cooler [Elektroda, dzi_dziuś, post #10760236]

How much quieter is an Electrolux inverter washer?

Specification sheets list 52 dB during wash versus 58 dB for comparable brushed models — roughly a 6 dB drop, perceived as half the loudness [Electrolux EWT136640W datasheet].

Can an induction motor change speed without an inverter?

No. Variable speed on an induction machine requires frequency control; the inverter supplies that function [Elektroda, Anonymous, post #10761332]

What usually fails first on inverter-driven washers?

The electronic control board is the weak point. Replacement can exceed €150, offsetting some energy savings [Elektroda, mrhari, post #12774409]

How can I check which motor my washer has?

  1. Remove rear panel and look for a drive belt.
  2. Read the motor label—“BLDC” or “Induction”.
  3. Photograph the control board; inverter boards have three large output terminals.
    Perform these steps with power unplugged.

Which is cheaper to repair: belt-driven inverter or Direct Drive?

Belt drives let you swap a €15 belt yourself. Direct Drive seldom breaks mechanically but its integrated stator/rotor costs >€200 if it fails [RepairMarket EU 2022].

Do energy savings outweigh the higher purchase price?

At 25 % lower consumption, a family running 220 cycles/year saves about 45 kWh, ~€15 annually at €0.33/kWh. A €90 price premium pays back in six years [EU Energy Tariff 2023].

What motor warranty does Electrolux provide?

Current Electrolux inverter motors ship with 10-year motor warranties, matching LG’s offer [Elektroda, wesmar, post #15990562] Electronics usually carry only 2 years coverage.

Why does the spec sheet mention a belt if the motor is “inverter”?

“Inverter” describes electronic control, not mechanical layout. Electrolux keeps the conventional belt to isolate drum vibration and ease servicing [Elektroda, Anonymous, post #10762226]

Can I retrofit an old washer with an inverter motor?

Practical retrofits are rare. You would need a matched inverter board, tach sensor and drum pulley; costs exceed a new mid-range washer [FieldService EU 2023].

Edge case: what if the inverter board fails mid-spin?

The drum stops abruptly, the door remains locked and error E57/E59 appears. Unplug for 10 minutes, drain manually, then call service; damaged IGBTs often short [Service Bulletin ELS-WM-17].

How do I keep an inverter motor healthy?

  1. Level the machine to reduce belt stress.
  2. Clean the filter monthly; clogs raise load currents.
  3. Ventilate the laundry room—electronics dislike sustained 40 °C heat.
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