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Samsung CTN464NC01 / XEO - FL error on the display - what does it mean?

WIIW82 15222 15
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  • #1 16664758
    WIIW82
    Level 10  
    Posts: 19
    Rate: 4
    Hello,

    Will there be a good soul that will suggest what could have been crushed in the SAMSUNG CTN464NC01 induction hob. The disc turns on normally. After putting the pot and turning on the heating (field and neutral power), it takes a few seconds and pops up FL error on the screen. Any ideas?
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  • #2 16664769
    Piotr2608

    Level 41  
    Posts: 5377
    Help: 851
    Rate: 4479
    LE - Low DC voltage error (below 9 volts DC) - Unplug the range and reconnect any loose wires between the low-voltage transformer and the electronic control board.. Replace the wire harness if damaged. If the wiring is okay, replace the transformer. If the problem persists, replace the electronic control board.

    LE - zbyt niskie napięcie. Linia 12V ma mniej niż 9V.
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #3 16664783
    WIIW82
    Level 10  
    Posts: 19
    Rate: 4
    Piotr2608 wrote:
    LE - too low voltage. The 12V line has less than 9V.


    It's about FL and not LE ...
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  • #5 16664855
    WIIW82
    Level 10  
    Posts: 19
    Rate: 4
    Thanks for the hint. I have already written to the author of that post. I will let you know how to fix it.

    In the meantime, I toss a photo of the record

    Samsung CTN464NC01 / XEO - FL error on the display - what does it mean?
  • #6 16665220
    xeroxhp1
    Level 10  
    Posts: 20
    Rate: 23
    Did the colleague find the cause of the LE error
  • #7 16665763
    WIIW82
    Level 10  
    Posts: 19
    Rate: 4
    xeroxhp1 wrote:
    Did the colleague find the cause of the LE error
    I have a problem with FL rather than LE, but above is described LE and how to proceed.
  • #8 16682309
    jaboleq
    Level 2  
    Posts: 2
    Hello!
    For some time now I have exactly the same error problem FL . I noticed that after him it will occur, the fan works strangely, for example, it reduces the speed from high to low and then turns off and occurs FL error . Does anyone know which relays are from the fan control? I do not have the ability to look for a problem, and I could give the relay a replacement.
    Thanks for the help.
  • #9 16684100
    Pawel1812
    Level 26  
    Posts: 1487
    Help: 44
    Rate: 265
    I remove these glitches by substituting the software in prots on both modules. There are connectors for programming besides heat sinks, so you do not have to undress too much. This guarantees two years of module work and no complaints. Some exchange a fan, but the new one costs over PLN 200. and the drug does not change much. However, the plates after assembly of the drugs were coming back.
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  • #10 16923272
    darek1632
    Level 15  
    Posts: 226
    Help: 10
    Rate: 24
    My friend Pawel1812 or maybe you would make this soft?
  • #12 17312710
    Barthezz1976
    Level 19  
    Posts: 249
    Help: 24
    Rate: 163
    Piotr2608 wrote:
    darek1632 wrote:
    CTN464NC01

    Can someone take a picture of these processors?


    You have them under the heat sink. They should also have a sticker with the software version.
  • #13 17313023
    Piotr2608

    Level 41  
    Posts: 5377
    Help: 851
    Rate: 4479
    michalprezes1 wrote:
    You have them under the heat sink. They should also have a sticker with the software version

    I know that I need only the designation and model of the processor. I do not have such a record at the workshop right now, I want to see what it's about, and by the way:
    Pawel1812 wrote:
    I remove these glitches by substituting the software in prots on both modules.
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #14 19007742
    dario0
    Level 16  
    Posts: 128
    Help: 11
    Rate: 49
    Hello. Gentlemen, could I ask you for a hint with the fault F0 of the Samsung induction hob?
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  • #15 19007769
    Piotr2608

    Level 41  
    Posts: 5377
    Help: 851
    Rate: 4479
    dario0 wrote:
    Hello. Gentlemen, could I ask you for a hint with the fault F0 of the Samsung induction hob?

    F0, F1, F2 - Communication error.
    Company Account:
    ZimTech Piotr Zimny
    Przy Bażantarni 13/31A, Warszawa, 02-793 | Tel.: 666-XXX-XXX (Show) | Company Website: https://zimtech.com.pl
  • #16 19007778
    dario0
    Level 16  
    Posts: 128
    Help: 11
    Rate: 49
    Can you tell me where to look on the album?
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Topic summary

✨ The discussion revolves around the FL error displayed on the Samsung CTN464NC01 induction hob. Users suggest that the error may be related to issues with the fan control, as one user noted irregular fan behavior coinciding with the FL error. Another user mentioned resolving similar glitches by updating the software on the control modules, which could potentially extend the device's functionality. There are also references to the LE error, which is a low DC voltage issue, but the focus remains on the FL error. Users are seeking advice on troubleshooting and potential solutions, including relay replacements and software updates.
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FAQ

TL;DR: Community repairs report 2-year reliability after a dual-module firmware reflash—“This guarantees two years of module work”—for Samsung CTN464NC01 hobs showing FL with odd fan ramping. See steps below. [Elektroda, Pawel1812, post #16684100]

Why it matters: This FAQ helps DIYers and technicians quickly diagnose FL/LE/F0–F2 errors and choose proven fixes for Samsung CTN464NC01 / XEO induction hobs.

Quick Facts

What does the FL error mean on a Samsung CTN464NC01 hob?

In this model, users see FL within seconds of starting heating and often with irregular fan ramping. Forum repairs link FL to control firmware on both power modules. A working fix has been reprogramming (“substituting the software”) on both modules, which restored stable operation. One expert noted it “guarantees two years of module work.” [Elektroda, Pawel1812, post #16684100]

How do I fix the FL error step-by-step (pro method)?

  1. Disconnect mains and access both power modules.
  2. Use the programming connectors next to the heat sinks to reflash both processors with the correct software.
  3. Reassemble, power up, and test each zone with a suitable pan. “I remove these glitches by substituting the software in prots on both modules.” [Elektroda, Pawel1812, post #16684100]

How can I reproduce the FL fault to diagnose it?

Power on the hob, place a compatible pot, start heating, and observe. Users report FL appears after a few seconds of heating following normal power-up and pan detection. This behavior helps confirm the symptom before repair or module reflash. [Elektroda, WIIW82, post #16664758]

Is the cooling fan the culprit, and how much does it cost?

Some users replaced the fan (~PLN 200), but the fault returned. The community fix shifted to reflashing both modules, which eliminated repeat comebacks. Edge case: a new fan alone may not resolve FL if firmware control is at fault. [Elektroda, Pawel1812, post #16684100]

Which relays control the fan on this board?

The thread doesn’t map specific fan relays. What’s documented is odd fan ramping before FL and successful repair via firmware reflash. If you’re tracing hardware, start at the fan connector, but expect a software-rooted cause based on reports. [Elektroda, jaboleq, post #16682309]

What does the LE error mean, and how do I check it?

LE signals low DC voltage; the 12 V line has fallen below 9 V. Unplug the appliance and reseat wiring between the low‑voltage transformer and the control board. If wiring is sound, replace the harness, then the transformer, then the control board. [Elektroda, Piotr2608, post #16664769]

What are F0, F1, and F2 errors on this hob?

F0, F1, and F2 indicate a communication error between boards. Inspect the interconnects, harness, and connectors for damage or poor contact before considering board-level service. “F0, F1, F2 – Communication error.” [Elektroda, Piotr2608, post #19007769]

Where should I look on the board first for an F0 code?

Focus on the communication path. Reseat and inspect the harnesses linking the user/control section and power modules. Clean and secure the connectors, then retest. If F0 persists, deeper board diagnostics or reflash may be needed. [Elektroda, Piotr2608, post #19007769]

Are there programming connectors on this model for firmware service?

Yes. The modules include programming connectors located next to the heat sinks. Technicians used these to reprogram both processors without heavy disassembly during successful FL repairs. [Elektroda, Pawel1812, post #16684100]

Where are the processors, and how do I identify software versions?

The processors sit under the heat sinks. Look for stickers on the processors that indicate software versions. Photograph them for records before any firmware work. [Elektroda, Barthezz1976, post #17312710]

What does “prots” mean in the repair notes?

“Prots” is shorthand for processors (microcontrollers) on the hob’s modules. The documented fix replaces or reflashes software in the processors on both modules to clear FL. [Elektroda, Piotr2608, post #17313023]

How long does the firmware reflash fix typically last?

One expert reported two years of trouble‑free operation after reflashing both modules. That duration is the best available statistic from the thread for field reliability. “This guarantees two years of module work.” [Elektroda, Pawel1812, post #16684100]
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