What is this called please

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #53410
    Allsorts
    Participant

    What is the little blighter that is circled on this WF320 board?

    It has a number 102 on it

    George

    #315840

    Re: What is this called please

    It’s a surface mounted resistor. The 102 is its value but it’s not 102 ohms. It’s some sort of code which I can never remember so best way to find out is compare it with other smd resistors of same value elsewhere on board. (Sure to be some.)
    You can get spares from
    http://uk.rs-online.com/web/
    Mike.

    #315841
    Allsorts
    Participant

    Re: What is this called please

    Cheers Mike… I thought it was a resistor but didn’t want to just guess at it .. I think it is blown by the looks of it so I shall measure from another on the board… The MAC97A8 triac has been blown apart too at the other side of that varistor and Im presuming this little sod is the cause… will let you know when I test.

    George

    #315842

    Re: What is this called please

    I don’t think the resistor would cause the triac to blow. Rather more likely that something (interlock, pump…) caused the triac to blow and the resistor just went along for the ride.
    The RS site BTW is rather large and at the moment seems to be running very slow. If you find it difficult, “zoom out” and try a new way in. 😉
    Mike.

    #315843
    gandh1
    Participant

    Re: What is this called please

    i might be completely wrong here in which case whoever corrects me please dont make it obvious they are correcting me so i can edit the post… 8)

    but i thought the resistors between triacs were to protect the triac… ?

    #315844

    Re: What is this called please

    You could be right in some instances, I think, but OTOH, I don’t think washing machine manufacturers in general are much interested in protecting triacs if it means spending an extra couple of pennies.
    Mike.

    #315845
    funkyboogy
    Participant

    Re: What is this called please

    you can buy these red circles from most good stationary outlets …

    lol

    ally

    #315846
    Allsorts
    Participant

    Re: What is this called please

    leavemetogetonwithit wrote:The RS site BTW is rather large

    Hi Mike… I do use both RS and Farnells for my parts.. as well as reclaiming them from the many boards that people send me via our website.

    leavemetogetonwithit wrote:I don’t think the resistor would cause the triac to blow

    There are many varisters on the board protecting the triacs. Together with ‘broken souldered joints on the power plug’ (Possible spike), and the fact that this particular triac is situated in the tracks of a relay, this particular blow-out could have a source of one of many, including this little bugger.

    funkyboogy wrote: you can buy these red circles from most good stationary outlets …

    Ally you wally… :rolls: 😆

    George

    #315847
    Allsorts
    Participant

    Re: What is this called please

    Anyone got a wiring diagram for the Hotpoint WF320 please?

    George

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