If an object has gone past the drum, stop using the washer. It should only be recovered through an accessible, authorized route; internal access may require technical disassembly.
First confirm what is missing
Check the removed laundry, the visible interior, and the accessible folds of the gasket with the appliance unplugged. Use a light without putting your fingers where you cannot see. If the object has sharp edges or is caught, do not pull it hard.
A coin or metal piece may also remain in the laundry or the drum. The rubbing or rattling does not confirm its position between the tub and drum.
Access points that depend on the model
The filter, a removable paddle, or a maintenance opening only provide a recovery route when the manufacturer specifies it. Before opening a drain access, follow safe draining. Not all machines have a user-accessible filter.
Do not remove the heater or open an internal hose based on a generic instruction. Reassembly requires restoring the seal, fasteners, and position; a poorly closed recovery can create a leak.
When to move on to technical inspection
If the object is not visible, the drum has resistance, part of a paddle is missing, or the door gasket has been damaged, leave the appliance isolated. Give service a description of the object and the noise observed.
Do not push through the holes or use a spin cycle to expel it. A fragment may move to areas that are harder to recover.
After recovering the part, check that it is complete; a missing fragment justifies continuing the inspection before resuming use.