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  1. #1
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    Daikin cassette 71 split



    Hi we have installed 4 split cassette units 3 work great the 4th does not work the remote control has nothing on it we checked wiring all ok and power to outdoor unit all ok lights are on outdoor unit any ideas please



  2. #2
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    Re: Daikin cassette 71 split

    Possibly a faulty remote controller. Try changing it with one that is known to work. Make sure that the interconnecting wiring is making contact in the terminals.
    Mobile A/C at its best, see avatar.
    Bedford. Now retired and trying to relax.

  3. #3
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    Re: Daikin cassette 71 split

    You say wiring is good but what about voltages at the terminals?
    Brian, retired in Devon.

  4. #4
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    Re: Daikin cassette 71 split

    I charge remote few days ago and still blank also voltage is fine

  5. #5
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    Re: Daikin cassette 71 split

    Check the connections at the indoor unit where the controller wires into, usually P1 and P2.
    Had this problem on a Daikin cassette a year ago.
    Turned out to be faulty wiring from the factory. The Forced off wires from the PCB went into the top of where the P1 and P2 terminals were.
    My Controller was blank until I swapped the wires to the right terminals.

    Good luck,
    Keza

  6. #6
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    Re: Daikin cassette 71 split

    Thanks Keza I try that on Monday

  7. #7
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    Re: Daikin cassette 71 split

    Tried what you said keza no luck

  8. #8
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    Re: Daikin cassette 71 split

    Swap the indoor pcb onto a unit you know is working to see if it transfers the fault of runs OK. At least this will tell you if the pcb is at fault or the wiring.

  9. #9
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    Re: Daikin cassette 71 split

    Unlucky mate. Sounds like a PCB problem.
    I would try what Frank suggests.
    Maybe DOA

  10. #10
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    Re: Daikin cassette 71 split

    I ordered a new pcb

  11. #11
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    Re: Daikin cassette 71 split

    Let us know how it goes

  12. #12
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    Re: Daikin cassette 71 split

    I change the board like Daikin said and still does not work I tried everything

  13. #13
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    Re: Daikin cassette 71 split

    Quote Originally Posted by eurocooling View Post
    I change the board like Daikin said and still does not work I tried everything
    What is the voltage at the remote controller cable? You need to check this at the remote controller to prove the cable is okay. Are the LEDs flashing on the indoor PCB? What is the voltage between 2 & 3 on the indoor unit?

  14. #14
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    Re: Daikin cassette 71 split

    We have no led flashing and nothing on the remote control this is with new board thanks for your help 2 to 3 there is nothing

  15. #15
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    Re: Daikin cassette 71 split

    Quote Originally Posted by eurocooling View Post
    We have no led flashing and nothing on the remote control this is with new board thanks for your help 2 to 3 there is nothing
    Okay you are looking for a DC voltage on 2 to 3 at the indoor and on the remote cable. Can you check 1 to 2 on the indoor you should have AC voltage. Can you check 1 to earth and 2 to earth at the indoor.

    If you don't have AC voltage please go to the outdoor and check 1 to 2 and you should have AC voltage (240v). Also check 2-3 at the outdoor you should have DC voltage.

    If you have voltages on 1,2&3 at the outdoor you a have problem with the cable or spur.

    If you have no voltages on 1,2&3 at the outdoor the glass fuse on the outdoor PCB may have blown.This can be due to a cable issue

    Please post your findings.
    Last edited by Neddy; 21-07-2017 at 06:57 PM.

  16. #16
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    Re: Daikin cassette 71 split

    Thank you I will try this

  17. #17
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    Re: Daikin cassette 71 split

    What is the full model number of the outdoor unit?

  18. #18
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    Re: Daikin cassette 71 split

    Sorted it now we had a faulty outdoor board all working

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