- Dishwasher is making unusual noises
1. Humming noise just after starting:
There is no cause for concern, the dishwasher always start a washing cycle with a pumping program, which produces this noise.
2. Loud noise or knocking:
There is no cause for concern, the noise is produced by the detergent dispenser opening.
3. Beeping sound during pumping:
Add a drop of detergent (not too much!) in the detergent dispenser to lubricate the pumping mechanism.
4. Clunking noise:
This could be that the spray arms are hitting items within the dishwasher such as long spoons or saucepan handles. Check positioning of items within dishwasher.