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Hi,
The other night I got the standard F11 failure to drain code. Opened the trap and cleared out the bobby pins that had been missed in a pocket and had made it into the drain and thought that would be the end of it. But I just kept getting the code.
I checked where the drainage pipe connects in under the sink as that’s been an issue in the past but that was clear. Checked the exit of the pump housing and that was clear, I checked the drainage pipe and that was clear.
The pump makes a humming noise, but not the noise it usually makes. I tried giving the impeller a little push and it started straight up. I then tried a few rinse cycles and they seemed to work fine….then another F11. Again the pump was humming, but not spinning.
I’ve got the pump out, the part number is ASKO 80 772 28 and it also has DPS 25-047 on it, along with isol.C1.F
My question is, does this sound like an issue with the pump itself, or something else? I’ve done a bit of reading and think that the main motors of washing machines have a starter capacitor that can go bad, I wondered if the pump would have something similar? I tried following the wiring from the pump but as far as I can tell it goes up and straight onto the control board.
Any advice greatly appreciated. I’m happy to purchase and fit a new pump if that’s the conclusion, I just don’t have the money to purchase a part that doesn’t fix it!
kind regards
russ.
If there is no obstruction in the pump then it sounds like the pump itself is failing due to age/wear and tear. If there is a bit of wobble side to side on the impellor that would be indicative of this.
I took a closer look at the pump and found it was quite hard to turn and noticed that there was hair and some kind of plastic thread packed in around the shaft. I cleared that all out and it was spinning freely. Plumbed it back in and did a test rinse/drain and it worked. Woohoo. Then while putting it back together I moved the control panel facia before I’d turned it off at the wall, and tripped the electrics. Now it won’t turn on at all. So I went from “yes! fixed it at zero cost and we can get on with the mountain of washing” to “I cannot believe it” in the space of 2 seconds.
iadom wrote:🙁 That sounds terminal.:eek: Assume you have tried another fuse?
tested the fuse in the plug, it’s fine. By terminal you think mainboard frazzled? Is there anything else it could be.
Hard to say without knowing what part you shorted out, it would suggest you have corpsed the main control panel module, a seriously expensive item.:(
I found the issue, a blown IC on the control board. Unfortunately it’s not got any lettering left on it for part identification! I’m trying to find either a high res image of the board to see what the part is, or a schematic.
I managed to identify it….then found the blown off front which confirmed it! It was an LNK363pn
Unbelievably I spent all of yesterday trying to ID it using Google and eventually got there. Tonight for some reason I thought “I’ll give Bing a try” and it led me straight to a thread on here with a guy trying to I’d exactly the same chip on the same machine! Unfortunately he didn’t respond to say if swapping the chip fixed things.
I have a replacement IC ordered, but I’m worried that the second I turn the machine on it will blow again. Finding someone with the same issue at least gives me a bit of hope that it’s a part that does fail from time to time.
These power chips are protected. if the output is short circuit they dont blow.
changed lots of these and some have blown their tops off and never had one go bang after installation. There is often a 3 watt fusible resistor in circuit as well and these blow when the chip do. you need to find this resistor and check it
Dave
electrofix wrote: There is often a 3 watt fusible resistor in circuit as well and these blow when the chip do. you need to find this resistor and check it
Thanks for the tip Dave, could you identify the fusible resistor from this image? The blown IC is upper right.
https://www.dropbox.com/s/4dkcw0b61he07qd/2022_10_13.jpg?dl=0
whoops something went wrong with the link
this one should work
https://www.dropbox.com/s/po59t5sruz8tt5p/2022_10_13.jpg?dl=0electrofix wrote:22 ohm resistor as pictured
Amazing, thank you. Just tested it with the multimeter and it’s reading as open so I guess it’s blown.
You think it’s a 3W one?
If so I guess I just have to find the right thing to buy. Wish I had waited when ordering the IC, it was £10 postage, I could have got this at the same time! If I’m not careful I’ll have spent the same on parts/postage as buying a whole new board! Is there a supplier you folks in the trade use for things like this?
Or, bit of an odd query, but is it something you have stock of? Could I PayPal you costs and postage if you were able/prepared to send me the part you’d use?
Final thing, just to check: I *think* it’s 2.2ohm rather than 22?
Cheers
russ.
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