ISE 10 W256W (ASKO WM70.1) Wont turn on – blown chips on control board

[neon_3SP_glow]

Hello all.
Firstly, I’m going to reference some picture in this thread: ISE 10 W256W (ASKO WM70.1) won’t turn on – UK Whitegoods Domestic Appliance Help And Support Forums

Secondly, this machine is on a yacht – replacing the machine is an absolute nightmare as decking has to be removed and the machine craned into the engine room! Essentially, the customer is very happy to get the machine repaired whatever the price.

The 7 leg power supply chip has a crack in it. LNK363PN

Resistor 2RP100 has its outer shell cracked.

Here is a picture of another module which suffered a similar fault: https://imgur.com/bXX7t05

There may be other components blown, there are patches on the pcb where the floor looks slightly carboned – as if something has blown/gotten hot – but I cant be sure. My eyes are not good enough to see.

Does anyone have any experience with repairing such faults. There doesn’t appear to be any computer chips.

Is there any companies which might take a look and offer a repair?

Appreciate any help. Thanks.

[electrofix]

common fault do it all the time. have done 2 in the last 2 weeks

you will get away with it over 95{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of the time by just replacing the chip and inrush / safety resistor

Dave

[neon_3SP_glow]

Great, thank you Dave.

Can you please confirm that the ‘In rush’ safety Resister is the 2RP100 resister (slightly bigger than the others on the board, about 9mm long)?

This (2RP100) is the only other component which is clearly blown.

Cheers.

And also, were do you get the components from? Presumably you buy a packet of 10 etc?

Thanks for your help again, as always.

Daniel

[electrofix]

you will have to look at the colour codes on the resistor to get value

can look at the pictures as they want ot put masses of cookies on my computer so aborted access

normally 3 watt fusible type

Dave

[neon_3SP_glow]

Thanks for the reply again Dave.

Let me see if I can upload a picture of it here. I’m using chaptgpt AI to identify the resister and it’s saying:

The resistor color code you’ve described suggests that the resistor may be non-standard or there could be an error in the description of the color bands. Typically, a resistor will have bands that help determine its resistance value, with the last band often indicating the tolerance (how much the resistance value can vary).

Here’s a quick breakdown of standard resistor color coding:

1. First Band: Represents the first significant digit.
2. Second Band: Represents the second significant digit.
3. Third Band (if present): Represents the multiplier.
4. Fourth Band (if present): Represents the tolerance.

Commonly, resistor color bands do not include silver except in the multiplier or tolerance bands. Let’s try to interpret based on a possible misdescription:

• Yellow: 4
• Silver: Typically used as a multiplier (x0.01) or in the tolerance band.
• Black: 0
• Red: x100 multiplier or 2{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} tolerance.

Given this, and considering standard interpretations, it’s likely there might be an error in observing the bands. For a more accurate interpretation, please double-check:

• The order of the bands.
• The total number of bands.
• The exact colors and their sequence.

If the resistor is indeed as described, it might be a special or custom type, not following the standard coding. In such cases, consulting the washing machine’s service manual or contacting the manufacturer for specific part information would be the best approach.

[electrofix]

1 its will be under 100 ohms
2 it will be 3watt fusible

after that all we need is the colours

https://www.utmel.com/tools/band-res…lculator?id=20

Dave

ps manufacturer wont know the values of the components and only supplies complete boards

[neon_3SP_glow]

Thanks Dave.

I’ve taken the easy option and sent it to QER. My knowledge of circuit board components leaves a lot to be desired!

Really appreciate your help though.

[neon_3SP_glow]

Can’t speak highly enough of QER.

Apparently, they’ve repaired it and will have it in the post to me tomorrow. Very good.

Fingers crossed for when I go back to fit it.

The machine is located into the yachts engine bay, with two massive Ford V10’s!

[electrofix]

well why did you repair it
a couple of fan belts to the drum pulley from the v10’s and it will spin better than ever lol

Dave

[neon_3SP_glow]

SOLVED

QER Repair successful and machine powering on and working as per normal.

Many thanks for the help in this thread.

[neon_3SP_glow]

electrofix wrote: well why did you repair it
a couple of fan belts to the drum pulley from the v10’s and it will spin better than ever lol

Dave

And who needs a washing machine on a yacht anyway? Surely, you just hang ya Speedo’s overboard for a few minutes once a week?! 😀

[Author]

Posts