Samsung WF90F5E3U4W
A year after a PCB replacement fixed my previous problem with this washer (thanks again Andy!), I have a new knocking noise that has developed... initially thought it was just something in the drum but can't find anything.
I've got another video with the back off which I will upload when my google drive syncs...
Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Samsung WF90F5E3U4W knocking noise traced to drum pulley play
- The problem
- Samsung WF90F5E3U4W washing machine developed a new knocking/tapping noise, initially thought to be something inside the drum.
- Likely cause
- Play/wear at the drum pulley causing movement on the shaft. The accepted reply suggested a loose drum pulley, and the poster then found slight rotational play and later confirmed play between the pulley and fixing bolt.
- What fixed it
- The rear pulley fixing was checked by removing the large hex bolt and refitting/tightening it. This stopped the noise. The discussion also concluded that if the pulley is worn it may loosen again, so replacing the drum pulley was the likely longer-term remedy, although an actual replacement was not confirmed.
- Checks to try
- Small amount of play noticed in the drum pulley when alternating rotation
- Large hex bolt removed and play confirmed between the pulley wheel and the bolt
- Pulley bolt tightened/refitted and noise stopped
- Parts or tools mentioned
- Drum pulley
- Large hex bolt
Safety: Isolate the appliance from the electricity supply before removing panels or working on rotating parts. Further diagnosis should be carried out by a suitably qualified appliance engineer.
11 Answers
Hi findon. It could be a loose drum pulley. Check this out tapping noise on spin
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Just playing around with the back of the machine I did notice that there is a small amount of play in the drum pulley when i alternate the rotation, so i think you could have nailed it!
Looks like i'm buying a new drum pulley...
Let us know how you get on. Try Ransom Spares
Need Professional Help or Spare Parts?
I've just tried them through your link, but didn't seem to be able to find the part.
Best price I can find is here;
https://www.espares.co.uk/product/es1709471/washing-machine-pulley-moto
Thanks. I remember now for some reason they don’t do Samsung spares. Not sure why.
Need Professional Help or Spare Parts?
Wow that’s pricy. However the cheaper ones are made of plastic. I would make sure it’s really loose before spending that or try to temporarily pack it with something to tight out up and see if it fixed it.
The ones that make the noise in my article are usually plastic. Make sure the pulley is actually moving on the shaft due to wear.
Need Professional Help or Spare Parts?
Just took the big hex bolt off and there's definitely a bit of play between the wheel and the bolt (not quite as much as in your video). I've just tightened it back up and the sound has stopped, guessing it will work free again - the bolt wasn't loose before, but maybe the extra pressure is just holding it for now?
Sounds like it. If there is wear in the pulley it may well work loose again, but at least you’ve proved what it was and it won’t be a gamble buying a new one.
Need Professional Help or Spare Parts?
For the 2nd time in just over a year. You are my hero.
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