If the grinder is noisy and not grinding beans there may be a stone from the coffee beans in the grinder. The following steps will rectify the problem:
- Remove the beans from the container.
- Use a vacuum cleaner to remove any foreign objects from the bean hopper.
- Refill with a small amount of beans, and deliver a coffee to ensure the blockage is cleared.
- Press the one cup button to check the grinder is clear.