Bosch Hard Water / Detergent Residue

White film or cloudy residue on dishes and glassware after washing.

Possible Causes

Incorrect water softener setting, Rinse aid too low, Excessive detergent, Very hard water without salt

Safety first: No electrical work is required for this issue.

Check water hardness setting: Adjust the Bosch water softener setting according to your local water hardness.
Refill salt and rinse aid: Ensure the salt reservoir (if present) and rinse aid dispenser are filled.
Optimize detergent use: Use the recommended amount of detergent; too much can leave residue.
Run cleaning cycle: Run an empty hot cycle with a dishwasher cleaner to remove internal film.

Very Easy 1/5