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Dimmer repair

wal_e

Hello everyone,

First of all I would like to apologize, I might certainly be in the wrong section, but I have been sent here by the Farnell technical assistance and to be honnest this place is a real maze for me image

So, I have been trying to fix a dimmer that went working only as a simple switch : OFF to ON max light directly. Following my researches it seems that the origin of my problem is a faulty triac and also - maybe - a capacitor ; I have tested both of the 2 fuses and they are ok.

The two original component are labeled:

- BTB04-600A

- CBB62B X2 0.033µF (250-280VAC) dimensions 40/110/56/C

My problem is that I can't find any of the exact two components and I have no idea what I can use to replace them as equivalent.

Any help is really appreciated

Thank you - very much - in advance.

 

W

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  • Hi,

     

    If rotating the dimmer makes it turn the light on and off, then why do you think the triac is faulty? Couldn't it be the rotary potentiometer? (I don't know - I'm speculating).

    I'm not sure it is good to replace with alternatives if the original parts are unavailable in your region, and there's assembly risks too (e.g. replacing it may require replacing insulating washers).

    Anyway, I think you need to consider that it could be something else faulty. By the time you replace the triac and/or capacitor, and then discover you now need to order something else, all that plus your time will cost >> than a new dimmer, and may be >> unsafe.

  • in reply to shabaz

    Hello Shabaz,

    Thank you for taking the time to answer. I found this diagnostic on the internet, it says that if the dimmer only works from OFF to ON max power it's a triac issue.

    As you can imagine this is not a vital issue but I like fixing things instead of just replacing them I can't help it image.

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  • in reply to shabaz

    Hello Shabaz,

    Thank you for taking the time to answer. I found this diagnostic on the internet, it says that if the dimmer only works from OFF to ON max power it's a triac issue.

    As you can imagine this is not a vital issue but I like fixing things instead of just replacing them I can't help it image.

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