Solved

Washing machine pulley rocking on back of drum

WIwisemonkey
Asked over 1 year ago 3,753 views
0

Morning all,

Our Ikea integrated washing machine was making a knocking noise when the drum was turning.

On removing the back, I've discovered that it's the pulley knocking against the back of the drum.

It's almost as if the bot isn't tight, so it's not keeping the pulley hard up against where it's met the drum.

I removed the bolt, and and looked at the pulley, nothing appears to be missing, although I note on replacement pulley kits, theres a large washer and a smaller washer - I only have a larger washer.

This is the pulley I have

https://www.amazon.co.uk/AEG-WASHING-MACHINE-PLASTIC-PULLEY/dp/B084C3S7JB?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A3MYEF0XBKZGAV&gQT=1

The rocking of the pulley is causing a knock as it rattles, and also causing the belt to slip towards the back of the pulley and its occasionally falling off.

Is it normal of the pulley to act loose?

Thanks in advance.

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.

Knocking from drum pulley on Ikea integrated washing machine

The problem
The washing machine was making a knocking noise while the drum turned. With the back removed, the drum pulley was found to be rocking against the back of the drum, causing the knock. The belt was also slipping towards the rear of the pulley and occasionally coming off.
Likely cause
A faulty drum pulley. The accepted reply states this is a known fault and that replacing the drum pulley should cure it.
What fixed it
Replace the drum pulley. The discussion does not confirm any additional parts or whether missing washers were the cause.
Checks to try
  • Rear panel removed and pulley observed rocking on the back of the drum
  • Pulley bolt removed and pulley inspected visually
  • Belt observed slipping towards the back of the pulley and occasionally falling off
Parts or tools mentioned
  • New drum pulley

Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.

Cause identifiedGenerated 10 Aug 2026 · AI summaries can make mistakes — read the full thread below.
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1 Answer

Accepted Answer
1
WH
WhitegoodshelpVerified Engineer
Answered over 1 year ago

Hi. This is a known fault. A new Drum pulley should fix it

Knocking tapping noise on spin

Whitegoods Help — appliance repair expert and forum host.

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