How to troubleshoot Fujitsu DC inverter indoor unit blinking.

Brand : Fujitsu DC inverter
model : AOAG24LAT3 multi split system 3
error code : 76 (operation light blink 7 times, timer light blink 6 times and economy light continuously blink)
Cause : 2 & 3 way valve thermistor faulty.
Thermistor reading: around 38 K ohm at ambient temperature around 30°c
#bonmj #inverter #fujitsu

Пікірлер: 119

  • @cliffdespeaux6949
    @cliffdespeaux6949 Жыл бұрын

    Thank you for posting this video. It saved me $15,000! I had a local HVAC company come out and they charged me $200 to say my unit was fried and I needed a whole new install. Thanks to your video I tried replacing the probes myself and... it works now!

  • @BonMj

    @BonMj

    Жыл бұрын

    Nice to hear that.👍👍👍

  • @Benji826

    @Benji826

    Жыл бұрын

    Hi there! We are having the same problem. Can you let me know where you found the actual parts. I've been looking everywhere, with no luck.

  • @neilkirby-xg9ts
    @neilkirby-xg9ts Жыл бұрын

    Thank you for posting!! One service company wanted to replace my entire unit. Called in another company - mentioned these two parts from your video and they agreed that was the problem. Saved me a lot of money!!

  • @BonMj

    @BonMj

    Жыл бұрын

    👍👍

  • @doronzemach3959
    @doronzemach395910 ай бұрын

    I bought the two parts and the technician replaced them. It solved the issue. Thanks again for saving me so much money.

  • @BonMj

    @BonMj

    10 ай бұрын

    👍👍

  • @fivestarbrokerage

    @fivestarbrokerage

    Ай бұрын

    Hello @doronzemach3959 can you let us know where you bought this part?

  • @hvac01453
    @hvac01453 Жыл бұрын

    Great job. With these minis, it was nice you identified the parts where they were located. In those tight compact units its sometimes hard to see where things are located. Good camera work.

  • @BonMj

    @BonMj

    Жыл бұрын

    Thanks

  • @capitalductless4556
    @capitalductless45562 жыл бұрын

    Bon, A lot of misunderstanding on inverter/ mini split style units here in the US- nice to see a channel that addresses troubleshooting and repair with these with more than just “replace the outdoor unit” mentality.

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @reubenbugeja4066

    @reubenbugeja4066

    2 жыл бұрын

    I just wish in my country we had that luxury!!!!! A 3 way multi split outdoor unit is not a cheap thing!!!! Most probably in my country costs over 2K! 2 weeks ago i went to diagnose an air conditioner,outdoor pcb board was the culprit. (18kbtu hitachi inverter split unit,Not more tham 4 years old) Called local hitachi authorized seller and quoted me that the replacement outdoor pcb board is 600$!!! not including labour!!!! As soon as i told the customer, he told me replace the hole thing. a brand new 18k gree with 5 year warranty only costed him 900$. but by the way thanks a lot Bon for sharing your experiences.

  • @BonMj

    @BonMj

    2 жыл бұрын

    @@reubenbugeja4066 Thanks bro

  • @edzelperocho2250
    @edzelperocho22502 жыл бұрын

    thanks sa video sir....malaking bagay po sa mga aircon tech..

  • @davidraulesquivel9278
    @davidraulesquivel92782 жыл бұрын

    T'hanks for your videos,they are very Well explained 👏👏👏

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @Chasethisbread
    @Chasethisbread Жыл бұрын

    This guy. Legend.

  • @janshaw5472
    @janshaw54722 жыл бұрын

    谢谢Mr bon 最疼头fujishu 哈哈😄

  • @BonMj

    @BonMj

    2 жыл бұрын

    谢谢你。

  • @user-ud5co9yr3k
    @user-ud5co9yr3k7 ай бұрын

    Hi and thanks you for thé content that you présent, I have a question about Atlantic, what causes thé fault 77? Thank you so much.

  • @mustangpunchguzman1053
    @mustangpunchguzman105310 ай бұрын

    Great video well splain

  • @BonMj

    @BonMj

    9 ай бұрын

    Thanks

  • @user-kd2xw8kt7j
    @user-kd2xw8kt7j10 ай бұрын

    Thanks I'm working on an aou24rml1 with code 6 at led 1. I will test thermistor

  • @doronzemach3959
    @doronzemach395910 ай бұрын

    Hi. I have the same issue, very helpful video

  • @BonMj

    @BonMj

    10 ай бұрын

    👍

  • @abidshirhatti6815
    @abidshirhatti68152 жыл бұрын

    Bast information video sir

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @chandarasena
    @chandarasena5 ай бұрын

    Hi Mr. Bon I like your instruction very much. what country are you from, Thailand?

  • @BonMj

    @BonMj

    4 ай бұрын

    Singapore

  • @reginaldfrancis73
    @reginaldfrancis732 ай бұрын

    Hi Bon, can you suggest fluke multimeters model good to troubleshoot thermistor and control board and power board

  • @suhaimizainalabidin3685
    @suhaimizainalabidin36852 жыл бұрын

    Good job sir👍👍👍

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @HVACSystem
    @HVACSystem2 жыл бұрын

    Good work sir

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks bro

  • @salamsaloom2477
    @salamsaloom24778 ай бұрын

    👌👌👌👌👌👌

  • @BonMj

    @BonMj

    8 ай бұрын

    Thanks

  • @stevealoia
    @stevealoia2 жыл бұрын

    Hi Bon. I’m working on a 24000 btu now with the 7 and 6 code . When testing the thermistor for Aand B it ohms out at 97.5 with a out side temp of 50 degrees and the C ohms out with OL and 38.0 ohm are both bad . Thank you

  • @JuanTodoli
    @JuanTodoli2 жыл бұрын

    Excellent 👌

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @reubenbugeja4066
    @reubenbugeja40662 жыл бұрын

    thanks a lot Bon for sharing your experience! do you know any online shop for ac spares?

  • @hasanmdkamal1010
    @hasanmdkamal10102 жыл бұрын

    Good job..bro

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @seanazma3441
    @seanazma34412 жыл бұрын

    U da man

  • @welcometomydreamworld6812
    @welcometomydreamworld68122 жыл бұрын

    Thnxx u Sir

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @xutao9621
    @xutao962111 ай бұрын

    Hi, thanks for sharing. My Fujitsu multi split system has the same error now. Where can I buy these valve thermistors?

  • @BonMj

    @BonMj

    11 ай бұрын

    From Fujitsu (Winfinity Singapore Pte ltd)

  • @lookoutleo
    @lookoutleo8 ай бұрын

    Hi my Fujitsu mini split looks like yours but my fault is one flash top light the one flash middle light and bottom light flashing fast. I've been told it's no communication between inside and outside units . Can you help?

  • @Zawkyi-4466
    @Zawkyi-4466 Жыл бұрын

    Thank U

  • @BonMj

    @BonMj

    Жыл бұрын

    👍

  • @8bunker
    @8bunker Жыл бұрын

    thanks men

  • @BonMj

    @BonMj

    Жыл бұрын

    Welcome

  • @karaors8970
    @karaors89702 жыл бұрын

    hi bro süper jop 🛠️🤳👍🇹🇷

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @hasandogan7174
    @hasandogan7174 Жыл бұрын

    Merhaba Fujitsu general vrf gaz toplama vacum modu hakkında bilgi alabilirmiyim lütfen

  • @francis_Teo_KY
    @francis_Teo_KY2 жыл бұрын

    If its outdoor like my house. Hanging at high level. How? U able to fix?

  • @welcometomydreamworld6812
    @welcometomydreamworld68122 жыл бұрын

    I hope you will update the next thank you👌

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks bro

  • @BonMj

    @BonMj

    2 жыл бұрын

    @lee Le bonmj81@gmail.com

  • @BayleyBuzz
    @BayleyBuzz11 ай бұрын

    Hi, thanks for your video, very interesting. I have an identical unit that stopped working tonight. I have traced the power back to the head unit but no lights on head unit. Remote is working correctly on other unit. Head unit start no go. Is it likely to be the small 3.15amp fuse on the PCB in the head unit? Do you know what would cause it to blow. Many thanks.

  • @BonMj

    @BonMj

    11 ай бұрын

    May be cause by Fcu fan motor

  • @Benji826
    @Benji826 Жыл бұрын

    This video is incredibly helpful. We are having the same problem. Do you have a link to a website where we can buy the 3 way thermistor and 2 way thermistor? I have been searching for 2 days now, and can't find the part number or anywhere that sells the part.

  • @BonMj

    @BonMj

    Жыл бұрын

    Contact nearest Fujitsu

  • @Lim-eh9yi
    @Lim-eh9yi2 жыл бұрын

    Boss can share if vrv3 outdoor icing problem.

  • @martinharry-on6bt
    @martinharry-on6bt5 ай бұрын

    Please I need help on AOTG45LATL fugitsu duct ac the outdoor running for 10mins and cuts out..why is that? And there's no error code appearing on control screen and outdoor error led not giving any sign..

  • @BonMj

    @BonMj

    5 ай бұрын

    Compressor working?

  • @martinharry-on6bt

    @martinharry-on6bt

    5 ай бұрын

    @@BonMj yes compressor working and overheating after ten minutes..

  • @techigirl1techigirl13
    @techigirl1techigirl13 Жыл бұрын

    Hi Bon. This is an excellent video, very informative.You explain things very clearly and thoroughly, step by step. My question is I have the same 7 6 error code but a different model number than the one in your video. Is my issue the same? My model number is AOU24RLXFZ. Thank you for your help.

  • @BonMj

    @BonMj

    Жыл бұрын

    Should be the same

  • @techigirl1techigirl13

    @techigirl1techigirl13

    Жыл бұрын

    @@BonMj Great! Thank you so much! I really appreciate your help!

  • @user-up4pb9cs4m
    @user-up4pb9cs4m Жыл бұрын

    Hi, my fujitsu has error code 33? Operation 3x and Air Clean 3x. It has 2 units. Do I just change the 3-way valve temperature thermistor?

  • @BonMj

    @BonMj

    Жыл бұрын

    May outdoor temperature sensor

  • @edwinneilnovoa1047
    @edwinneilnovoa10472 жыл бұрын

    Hola amigo bom si espocible en español gracias amigo bom dios lo bendiga

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks. Can you write in English

  • @danielmovie
    @danielmovie Жыл бұрын

    Hi I have Fujitsu investor problems is all indicators lamps blinking, cam you help me find out problem?

  • @BonMj

    @BonMj

    Жыл бұрын

    May outdoor unit got problem

  • @brendenbanks9293
    @brendenbanks9293 Жыл бұрын

    Could use some help. I have three heads... two wall units and one ceiling cassette. The ceiling cassette blinks green x3. No other lights just 3 blinks then maybe 15seconds of nothing. I cannot find any error list that this aligna with. Units are blowing warm. I assume I have a slow leak but want to understand what 3 green blinks mean before I call someone out to recharge it.

  • @BonMj

    @BonMj

    Жыл бұрын

    Reverse comms fail in use

  • @brendenbanks9293

    @brendenbanks9293

    Жыл бұрын

    @Bon Mj yeah that's what i was finding as the error code too. Does it make sense that only one unit is blinking and the system isn't cooling? I would think the other two units would still be working and blowing cold? Or does the one unit bring down the whole system?

  • @muruganantham595
    @muruganantham5952 жыл бұрын

    Can we bypass the 4 way valve in Fujitsu , can you please tell about the 4 way valve error .

  • @BonMj

    @BonMj

    2 жыл бұрын

    This 2 way and 3 way valve thermistor- is only thermistor, not valve. 4way valve is different,4way valve is heat and cold exchange valve

  • @danielguo1033
    @danielguo1033 Жыл бұрын

    Are you in NSW Australia?

  • @BonMj

    @BonMj

    Жыл бұрын

    Singapore

  • @rebecamorales7089
    @rebecamorales7089 Жыл бұрын

    Hi Bon I have a Fujitsu Haclyon and shows 9 operation blinking and 9 red light blinking. Can you help with this? Thanks

  • @BonMj

    @BonMj

    Жыл бұрын

    Suggest check outdoor thermistor and check gas pressure

  • @rebecamorales7089

    @rebecamorales7089

    Жыл бұрын

    @@BonMj thanks for the help.

  • @BonMj

    @BonMj

    Жыл бұрын

    @@rebecamorales7089 welcome

  • @Lee-mu2jc
    @Lee-mu2jc2 жыл бұрын

    老板晚上好不好意思打扰你,请问可以麻烦你给我这个fujitsu dc inverter error code menu吗?谢谢你

  • @geethperera9052
    @geethperera90522 жыл бұрын

    I like to joing with you sir

  • @yewkey88
    @yewkey88 Жыл бұрын

    My unit aotg45latl showing err 00:11, serial com.error. what should i looking for. Thanks Bon

  • @BonMj

    @BonMj

    Жыл бұрын

    What brand? Fujitsu?

  • @yewkey88

    @yewkey88

    Жыл бұрын

    @@BonMj yes, thanks

  • @rahmananisur5474
    @rahmananisur54748 ай бұрын

    Hi brother My one fujisu unit indoor operatin there red light come I want to know what the root cause please help me

  • @svengineering673
    @svengineering6732 жыл бұрын

    bro bon make a video on brazing hard drawn pipe with full details

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks

  • @geethperera9052

    @geethperera9052

    2 жыл бұрын

    @@BonMj i like to learn mitsubishi vrf.your kowledge is best

  • @johnnyroxannebautista2063
    @johnnyroxannebautista20632 жыл бұрын

    Hello Sir bon,do you have a vlog on LG unit vrf?

  • @BonMj

    @BonMj

    2 жыл бұрын

    My Channel got 1 LG video

  • @johnnyroxannebautista2063

    @johnnyroxannebautista2063

    2 жыл бұрын

    @@BonMj ok sir i will look for it

  • @Lee-mu2jc
    @Lee-mu2jc2 жыл бұрын

    老板不好意思请问可以给我这个fujitsu error code menu吗?谢谢你

  • @BonMj

    @BonMj

    2 жыл бұрын

    我找一下,没问题

  • @samqsj
    @samqsj2 жыл бұрын

    Hi my fujitsu inverter has the same error code. Can you help fix it? How much will be?

  • @BonMj

    @BonMj

    2 жыл бұрын

    Thanks watching my video. You can contact this no. 62881288

  • @bpicoy2k
    @bpicoy2k Жыл бұрын

    I just replace the valve thermistor C and D, and the unit wont turn on. I've reset the power multiple times, nothing seems to work. Help!!

  • @BonMj

    @BonMj

    Жыл бұрын

    Do you check other thermistor reading

  • @bpicoy2k

    @bpicoy2k

    Жыл бұрын

    @@BonMj yes I did and one of the 3-way thermistor was bad, in addition it turned out one of the fuse (250V 10A) blown out. I replaced the fuse and reset the power and all working like a charm again. Thank you so much!

  • @BonMj

    @BonMj

    Жыл бұрын

    @@bpicoy2k welcome

  • @sfchannel764
    @sfchannel7642 жыл бұрын

    What is the function 2 way and 3 way valve thermistor sir?

  • @BonMj

    @BonMj

    2 жыл бұрын

    Pipe Thermistor normally control cooling. 2way or 3 way just a name for the parts

  • @sfchannel764

    @sfchannel764

    2 жыл бұрын

    @@BonMj oh i see sir, thank for answering questions sir👍

  • @desafio78
    @desafio782 жыл бұрын

    Hi, my error code is operation 7, timer 1. What is the actual issue and how much if fix?

  • @BonMj

    @BonMj

    2 жыл бұрын

    Discharge temperature sensor

  • @desafio78

    @desafio78

    2 жыл бұрын

    Can u fix it? And how much?

  • @thesmallie99
    @thesmallie992 жыл бұрын

    Where can I buy the thermistor?

  • @BonMj

    @BonMj

    2 жыл бұрын

    Fujitsu

  • @thesmallie99

    @thesmallie99

    2 жыл бұрын

    I live in US and they make it extremely hard to buy these hvac parts. Do you have a specific website that might be willing to ship to us?

  • @BonMj

    @BonMj

    2 жыл бұрын

    @@thesmallie99 www.fujitsu.com/sg/#global-nav

  • @kashibaba521
    @kashibaba521 Жыл бұрын

    Error code 76 Thermistor faulty

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