Author Topic: blown resistor id  (Read 1533 times)

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Offline dazq

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blown resistor id
« on: March 30, 2018, 12:06:48 am »
if i upload a pic can someone help id a resistor for me i thinks its a 33mohm 5% metal film
« Last Edit: March 30, 2018, 12:09:23 am by dazq »
 

Offline KhronX

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Re: blown resistor id
« Reply #1 on: March 30, 2018, 12:19:08 am »
How about uploading that photo then? And perhaps a bigger view of where it is in the circuit?
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Offline dazq

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Re: blown resistor id
« Reply #2 on: March 30, 2018, 12:21:23 am »
« Last Edit: March 30, 2018, 12:39:19 am by dazq »
 

Offline dazq

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Re: blown resistor id
« Reply #3 on: March 30, 2018, 12:23:36 am »
its from a esd board in a dishwashet
 

Offline dazq

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Re: blown resistor id
« Reply #4 on: March 30, 2018, 12:46:16 am »
added pics for the res and board both sides
 

Offline ar0311

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Re: blown resistor id
« Reply #5 on: March 30, 2018, 01:58:27 am »
Orange, brown, black and gold?
 

Offline dazq

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Re: blown resistor id
« Reply #6 on: March 30, 2018, 02:28:07 am »
ok i think i got it organge yellow black gold looks like they are using it as a fuse
 

Online Nusa

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Re: blown resistor id
« Reply #7 on: March 30, 2018, 02:29:47 am »
Orange, brown, black and gold?

Which would be a 31 ohm 5% resistor if you're correct.

I'm seeing Red, Orange, Black and Gold. If I'm correct, that's a 23 ohm 5% resistor.

Probably about 3 watt from the size, but that's only a guess given no ruler in the pictures.

But pictures+monitors+eyes aren't always color-perfect. What colors do YOU see, original poster?
Resistor color charts are easy to find if you don't know them.
 

Offline dazq

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Re: blown resistor id
« Reply #8 on: March 30, 2018, 02:38:06 am »
ok just found s pic of a same board and i am wrong http://whitegoodsspares.com/pictures/thumbnails/prod_814_1.jpg  this looks like orange red black gold lol that is the right board so that would make it  32 ohms    and   5 % tolerance dose the type make a diffecne like metal foil exct
 

Offline drussell

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Re: blown resistor id
« Reply #9 on: March 30, 2018, 05:25:33 am »
It looks more like orange orange black to me in the full size photo:

http://whitegoodsspares.com/pictures/prod_814_1.jpg

I take it the old one is completely open?
 
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Offline dazq

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Re: blown resistor id
« Reply #10 on: March 30, 2018, 02:01:03 pm »
dam it replaced the res and reasembled it tested and it poped it again so there must be a short some where else in the thing
any one know how to get the schematics for the beko dfsn 1530
 

Offline KhronX

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Re: blown resistor id
« Reply #11 on: March 30, 2018, 02:14:11 pm »
That's right up there with replacing blown fuses before determining what blew them in the first place  :-\
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Offline drussell

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Re: blown resistor id
« Reply #12 on: March 30, 2018, 03:53:31 pm »
I take it the old one is completely open?

dam it replaced the res and reasembled it tested and it poped it again so there must be a short some where else in the thing

Well, yeah, that is expected unless you tracked down why the original one blew up in the first place.  :)

You need to trace out where that goes to find out what it is supposed to do so you can compare it to see whether the currently measured conditions make sense.  Like, if this is an output that goes to a solenoid, is the solenoid shorted?  etc.

First of all, follow that trace to the external connector and see what device it connects to.  Wiring diagrams for appliances are usually included inside.  It won't show schematics of the individual modules but should at least show you which wires on this module's connector go to whatever else...
 

Offline dazq

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Re: blown resistor id
« Reply #13 on: March 30, 2018, 07:22:29 pm »
beko do not supply diagrams and will not help as they say only a certified engineer can repair there appliances the fuse is on the power in from the power switch which goes down thought the door at this point im a little lost at the moment as my multi meter has vanished so i cant check for contiunty to the parts that the wire go too will get back when i work this out
 

Offline drussell

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Re: blown resistor id
« Reply #14 on: March 31, 2018, 06:23:47 am »
It looks like it might be being used as part of a snubber or something...  When you find your meter, check to be sure that D1 or D6 or that big blue square capacitor are not shorted or something like that.
 

Online Nusa

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Re: blown resistor id
« Reply #15 on: March 31, 2018, 07:11:17 am »
Check the varistor also.
 


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