Distinguish silence, humming and drainage
A disposer that remains silent has behaved differently from one that hums without grinding. A sink that drains slowly while the unit runs may also involve downstream pipework. Explain which of these you already observed, when the change began and whether a cupboard leak appeared at the same time.
Keep the chamber closed to hands and tools
Never reach into a grinding chamber or remove a cover to identify a problem. A visible label photograph and an account of the normal switch or stopper can support the booking discussion without dismantling. Suitable repairs, parts and appointment availability are confirmed individually. Hayes enquiries for other appliances can open the relevant guidance using the remaining buttons on this page.