sensor on zwd1471s

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Viewing 15 posts - 1 through 15 (of 15 total)
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  • March 21, 2011 at 2:35 pm #61781
    stryder
    Participant

    hi
    is the probe that is pushed into a hole in the side of the rubber pipe between the condenser and the tub on a zwd1471s
    a humidity sensor? and if some clumsy git who shall remain anonymous accidentally pulled the two wires out of the connector which pushes onto the end othe probe, is it possible to put these wires back the wrong way round or doesn`t it matter which way round they go?

    March 21, 2011 at 3:19 pm #347595
    kwatt
    Keymaster

    Re: sensor on zwd1471s

    Hi Stryder,

    Is it shown on the attached?

    K.

    March 21, 2011 at 8:35 pm #347596
    stryder
    Participant

    Re: sensor on zwd1471s

    no, its a different set up than , i`ve been trying to post a pic of it but i cant suss out how to. sorry i took so long to reply

    March 21, 2011 at 8:51 pm #347597
    iadom
    Moderator

    Re: sensor on zwd1471s

    stryder wrote: i`ve been trying to post a pic of it but i cant suss out how to.

    Compose your post then click on the ‘Upload attachment’ tab down below the post box.

    Click on Browse, navigate to the file on your PC, select the file and then click ‘Add the file.

    If it is too large you will get a warning to advise you to resize it.

    Then submit your post. “Simples” 😀

    PS. Its more likely to be an NTC, it doesn’t matter which way the wires go. 😉

    March 21, 2011 at 8:54 pm #347598
    stryder
    Participant

    Re: sensor on zwd1471s

    i`ve tried that but it just doesen`t seem to be having none of it!

    March 21, 2011 at 10:20 pm #347599
    stryder
    Participant

    Re: sensor on zwd1471s

    thanks iadom, it is NTC but i`m not totally sure which one it is on the ukw spares site . 🙂

    March 21, 2011 at 10:47 pm #347600
    stryder
    Participant

    Re: sensor on zwd1471s

    better late than never
    [img]

    March 21, 2011 at 11:08 pm #347601
    iadom
    Moderator

    Re: sensor on zwd1471s

    Isn’t it the small doofer marked 48c on the picture kwatt posted?

    Why do you want to change it?

    It doesn’t appear to be in the shop@ but the part number is 3792171021. An e-mail to spares@ukwhitegoods.co.uk may be in order. 😉

    March 22, 2011 at 12:05 pm #347602
    Martin
    Participant

    Re: sensor on zwd1471s

    I can see that the wires have been pulled and recnnected. I’ts best to crimp insulated spade terminals on the 2 wires, discard the connector block and connect directly onto the NTC. 😉

    March 22, 2011 at 8:34 pm #347603
    stryder
    Participant

    Re: sensor on zwd1471s

    iadom wrote:Isn’t it the small doofer marked 48c on the picture kwatt posted?

    Why do you want to change it?

    It doesn’t appear to be in the shop@ but the part number is 3792171021. An e-mail to spares@ukwhitegoods.co.uk may be in order. 😉
    Isn’t it the small doofer marked 48c on the picture kwatt posted?

    Why do you want to change it?

    hi ladom i wanted to change it cos i thought i might have damaged it if i`d got the wires the wrong way round but i`ve since been told that it it doesn`t matter which way round they`re connected so i don`t need one now ,simples 🙂

    March 22, 2011 at 10:20 pm #347604
    stryder
    Participant

    Re: sensor on zwd1471s

    just out of interest, i read that NTC stands for negative temperature coefficient? but what does that mean in the real world? 🙂

    March 22, 2011 at 10:31 pm #347605
    iadom
    Moderator

    Re: sensor on zwd1471s

    http://en.wikipedia.org/wiki/Negative_t … oefficient

    Basically its resistance changes with the temperature it is subjected to. The electronics measure the changes in resistance to control the various temperatures within the machine.

    March 22, 2011 at 10:40 pm #347606
    stryder
    Participant

    Re: sensor on zwd1471s

    yarankow 🙂

    March 22, 2011 at 11:43 pm #347607
    gandh1
    Participant

    Re: sensor on zwd1471s

    iadom wrote:Basically its resistance changes with the temperature it is subjected to. The electronics measure the changes in resistance to control the various temperatures within the machine.

    and the negative bit means it works in the opposite direction. i.e higher temp=lower resistance. a normal thermister’s resistance rises as the temp rises (ptc)

    March 23, 2011 at 10:36 pm #347608
    stryder
    Participant

    Re: sensor on zwd1471s

    hi gandh1
    i know a little bit about electronics it was the negatve bit that puzzled me but i still don`t have a clue about the “co-efficient” bit. i thought that was a maths term and i `ve always had trouble with that 🙂

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