Hi, welcome to Just answer
Can you please tell me where exactly the coin is stuck ?
I mean inside the drain pump assembly or somewhere else
Sounds like it is just behind the drum. Rattles very loud during spinning.
How old is this washer/dryer ?
3 years approx
OK, have you already checked the filter ?
ok can you remove the top off the unit
and then the front has to be removed
can you take the small rear panel and just try to check if you are able to find the coin
if not then please check this Video
this will give you an idea on how to remove it and then check which part is loose or if there is a coin stuck in there
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