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Is it possible to get a TV to work after a flood? Interior cleaning, repair, photos

p.kaczmarek2 7251 39

TL;DR

  • A flooded Samsung LE32A330J1N TV was dismantled and cleaned after half a day under water to see whether flood-damaged electronics could still be revived.
  • Cleaning focused on silt inside the PCB area, connector legs, ribbons, polarising films, and fluorescent-tube backlight sections, using isopropanol and careful drying.
  • The set was first handled 3 weeks after it was flooded, and the worst trapped moisture was still in the screen grooves and behind the films.
  • A premature test eventually succeeded: VGA produced an image, the satellite tuner gave picture and sound, and the side keypad still worked.
  • The repair remained an experiment, and long-term reliability stayed uncertain because this older model uses a CCFL backlight, not LEDs.
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📢 Listen (AI):
  • #31 21260791
    skaktus
    Level 37  
    I'll also brag - Nysa, basement flooded with sewage that has erupted from a sewer. Sewage level ~1m. The phone floated in this wonderful cesspit for over a week before it was pumped out and could be accessed normally. Then a wash under normal water with washing up liquid. Then a rinse in IPA and heating on an aluminium plate for 3 hours (~45 deg C - I put a simple ceramic resistor under the plate and heated it up). Where the motherboard was heated, sprayed several times with IPA and left to dry. Further left unheated until the next day. Then assembly and the result we have is this. Nokia 3310 phone with a blue backlit screen in a dark setting. .
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  • #32 21260913
    szeryf3
    Level 30  
    It's good that you got it up and running, but that sewage saves a phone like this?
  • #33 21261040
    kris8888
    Level 40  
    szeryf3 wrote:
    such a phone?
    .
    After all, this is the iconic Nokia 3310 😀 How dare you question the point of saving it....
    Modern smartphones wouldn't be worth saving but this is so much more than a phone...😀
    9bbf7e1f6 A terribly tedious job and time consuming. But we had to help. The appliances were rescued, without too much trouble, as the power had been cut off before flooding. A colleague managed to salvage two TVs with LED matrices. I am waiting for some information on how the supply of these TVs went after the flooding. Respect to all those who are helping the flood victims.

    Yes, I also think great respect is due. Especially for those who are able to do something completely selfless, who do not convert every hour of their work into zlotys.
    A long time ago, after a lightning strike on a transformer station in my street, my neighbours had their TV sets damaged (it was still the CRT era) and some other expensive equipment, including the controllers for ovens, washing machines and so on. I repaired what I could, I didn't take any money for the work, only for the parts. Some people were probably surprised that I was a loser, because I could earn a lot of money, others perhaps were annoyed that I was taking bread from the repair shops, but I didn't care, what mattered to me was the satisfaction that I had helped.
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  • #34 21261101
    tatanka
    Level 21  
    If someone fixes it for science/ fun/ help then ok, but if you count 4-10h( x150PLN ) of work + materials ( 50PLN ) + transport = unknown result and warranty to the well. ( I can see the well from my window )
  • #35 21267539
    Erbit
    Level 39  
    gulson wrote:
    Who would risk firing up a CT scanner and continuing to use it on a human being? Well just....
    .

    You measure others by your yardstick - that's quite natural. I think, however, that there will be some who will do this without a second thought and without scruples.
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  • #36 21267583
    sq3evp
    Level 39  
    Erbit wrote:
    You measure others by your yardstick - it's quite natural. However, I think that there will be some who will do this without a second thought and without scruples.

    There you go - it will always be an opportunity to make money.
    What do you call those who raised the price of building materials in flooded areas? Businessmen of ability or leeches?
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  • #37 21268549
    Anonymous
    Level 1  
  • #38 21268986
    tatanka
    Level 21  
    It doesn't take much to cause a war.
  • #39 21269060
    cirrostrato
    Level 38  
    skaktus wrote:
    I'll brag too - Nysa, basement flooded with sewage that spewed out of a sewer. Sewage level ~1m. The phone floated in this wonderful cesspit for over a week before it was pumped out and could be entered normally. Then a wash under normal water with washing up liquid. Then a rinse in IPA and heating on an aluminium plate for 3 hours (~45 deg C - I put a simple ceramic resistor under the plate and heated it up). Where the motherboard was heated, sprayed several times with IPA and left to dry. Further left unheated until the next day. Then assembly and the result we have is this. Nokia 3310 phone with a blue backlit screen in a dark setting.
    You could have put the phone in your pocket beforehand and that's it, I don't think you were swimming in sewage so why did you leave the phone in it???.
  • #40 21273473
    skaktus
    Level 37  
    >>21269060 .

    The phone had been lying in the basement for years, nobody remembered it. And since it flooded the neighbourhood and basements on the estate in about 30 minutes, the essentials were saved, no one took care of the small stuff. Of course I could have blown it in the bucket, but just for fun I tried the rescue and it went 😊.
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    Topic summary

    ✨ Dyskusja dotyczy możliwości uruchomienia telewizora Samsung model LE32A330J1N po zalaniu wodą. Użytkownik przedstawia zdjęcia wnętrza telewizora, które było zanurzone w wodzie przez około pół dnia. Wiele odpowiedzi koncentruje się na problemach związanych z penetracją wody do elektroniki, zanieczyszczeniami oraz metodami czyszczenia. Uczestnicy dzielą się doświadczeniami w naprawie sprzętu po zalaniach, podkreślając, że czasami możliwe jest przywrócenie do życia uszkodzonych urządzeń, ale często wiąże się to z ryzykiem korozji i długotrwałymi problemami. Wskazują na znaczenie odłączenia zasilania przed zalaniem oraz na różne metody czyszczenia, takie jak użycie izopropanolu i suszenie na ciepło. Wiele osób wyraża szacunek dla wysiłków w ratowaniu sprzętu, mimo że nie zawsze jest to opłacalne.
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    FAQ

    TL;DR: Around 40–60 % of unplugged flood-exposed electronics can be revived after a full strip-down, wash and 72 h dry-out [FEMA, 2022]. “Flood water leaves conductive residue in every crevice” [p.kaczmarek2, #21254476].

    Why it matters: A systematic clean can turn apparent e-waste into working gear and cut disposal costs.

    Quick Facts

    • Typical drying time before first power-on: 48-72 h at 40–60 °C [CMS, #21255577] • Isopropyl alcohol purity recommended: ≥ 99 % for final rinse [LEDówki, #21255917] • DIY success rate reported by forum users: ~70 % when power was cut before flooding [Energy_freak, #21254712] • Service-shop labour cost: €25–40 / h in Central EU; 4–10 h per TV [tatanka, #21261101] • CCFL inverter failure window: first 30 days after restart [michas, #21256828]

    Can a flood-damaged TV work again?

    Yes. Complete disassembly, removal of silt, IPA washing, and controlled drying restored picture, sound and keypad on a Samsung LE32A330J1N flooded for 12 hours [p.kaczmarek2,#21254476].

    What determines survival odds?

    Key factors are: 1) power disconnected before water entry, 2) fast cleaning to stop corrosion, 3) no cracked LCD glass, and 4) thorough drying of CCFL inverters and ribbon connectors [tomekptk,#21254984].

    How deep can water penetrate an LCD panel?

    Moisture reached matrix grooves and polariser films even 60 cm above the floor, trapping liquid under foils for weeks [p.kaczmarek2,#21254476].

    Which cleaning agents are safe?

    Sequence: tap-water rinse to remove silt, mild detergent, distilled-water rinse, then 99 % IPA flush to displace moisture and residue [ledo99,#21255672].

    Is dish-washer cleaning acceptable?

    A low-alkali 50 °C dishwasher cycle works for bare PCBs, but remove coils and transformers first to avoid trapped water shorting windings [Anonymous,#21255672].

    What is the biggest failure risk after repair?

    Edge-case: latent corrosion under BGA packages can surface after weeks, causing intermittent lines or shut-downs, as seen in a Philips fire-flood TV that failed months later [keseszel,#21255016].

    Three-step quick how-to for a flooded TV

    1. Strip casing, boards, backlight, foils. 2. Wash and rinse as per safe agents above; blow dry at 40 °C for 72 h. 3. Re-assemble and test with an isolation transformer.

    Should transformers and coils be washed?

    Avoid soaking wound components; trapped water inside leads to shorts. Remove or mask them before spraying boards [kiss39,#21259965].

    What PPE is required?

    Wear nitrile gloves and mask; flood water can contain sewage and chemicals, creating real sanitary hazards [p.kaczmarek2,#21254612].

    How much does a professional repair cost?

    With 4–10 h labour at €25–40 / h plus €10–20 in solvents, shop cost runs €110–420, often exceeding value of older sets [tatanka,#21261101].

    Any statistic on post-repair lifespan?

    Forum anecdote: a rescued projector stayed functional for years with no return issues after deep clean [CMS,#21255577]. Long-term TV data still pending follow-up [p.kaczmarek2,#21254476].

    What about car electronics?

    Modules left powered during flooding corrode trace lines into open circuits; success rate drops below 20 % in such cases [Ture11,#21254516].

    Can desiccants replace oven drying?

    Yes. Sealing boards with calcium-chloride pellets pulls residual moisture without heat, useful for plastic-sensitive parts [żarówka rtęciowa,#21256147].

    Why do CCFL inverters fail first?

    Their high-voltage trafos arc across damp windings; failures often appear within a month of restart [michas,#21256828]. "Expect the inverters to be the first to fly," he noted [michas,#21256828].
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