(Topic ID: 316387)

Whirlwind blower fan not working

By RETROCENGO

76 days ago


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  • 11 posts
  • 4 Pinsiders participating
  • Latest reply 76 days ago by yaksplat
  • No one calls this topic a favorite

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#1 76 days ago

New WW.
Blower fan doesn’t work.

I borrowed a working controller board, and the blower works great.

I’m not sure what to measure in between, it’s not a transistor.
Please look at pictures, my pcb has resolderd joints and 1 jumper cable.

The problem is fully isolated to my pcb board, but I don’t know which component.
Fuse and fuse holder is fine

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#2 76 days ago

Well, that jumper is bypassing something in U1.
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#3 76 days ago

I’ll cut the jumper wire. Thanks.

Will update soon

#4 76 days ago

As I can see, it’s junperd from wrong leg.

I’ll put it on the right one

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#5 76 days ago

I'd guess the optocoupler had failed and this was a fix for it, but that eliminates the whole point of using an optocoupler to isolate that part of the circuit with the AC voltage.

#6 76 days ago

Check continuity of the trace. I just don't see someone making that mistake with the visible trace right in front of them.

#7 76 days ago
Quoted from yaksplat:

Check continuity of the trace. I just don't see someone making that mistake with the visible trace right in front of them.

Thank you for all your help buddy

So the trace was broken and the previous owner did make a jumper to the wrong leg, i solderd to the correct leg and now it BLOWS AGAINNNNN, woooohooooooo

Sun is burning hot in Denmark and WW is cooling me down now, so nice

Again thank you

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#8 76 days ago

happy your getting blown again !

#9 76 days ago
Quoted from transprtr4u:

happy your getting blown again !

Ohhh its great

#10 76 days ago

You can tell it’s Friday, guys going around bragging about being blown, lol.

Great job isolating the issue and correcting it, and supplying pics. This will definitely help someone in the future.

#11 76 days ago

How the hell did that get soldered wrong? That's insane...

But, glad it's working!

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