Dishwasher leaves a white film on didhes and film will not come off.I have drained water heater for about 20 mins to remove calcium deposits but problem still exists.

Calcium and magnesium is present in a great number of homes today regardless of hardness or softness of the water. Water containing dissolved carbonates of calcium and magnesium can lower the effectiveness of the detergents you use and leave deposits on the dishware and tub of the dishwasher. When these deposits dry they become what some call lime scale.

To remove these deposits there are a number of cleaners on the market today. I will list them in the order of my preference. You can find them near the dishwasher detergents. If you use them read the instructions on the label, but basically you can run a cycle with no dishes and the cleaner. Some of the cleaners like Lemi-Shine can be used with a full load of dishware after you clean the tub. This helps keep the tub clean and deposits off the dishes. If you want a home remedy that seems to work pretty good, put a cereal size bowl upright in the lower rack (no other dishes in the dishwasher) fill the bowl with vinegar and run a normal cycle. The vinegar will wash out and clean some of the deposits away. If residue is still around run a second cycle of the vinegar wash.

- Lemi-Shine
- Finish Dishwasher Cleaner
- Glisten
- Glass Magic

Here are some links to other dishwasher tips I have put together.

Blinking Clean Light

Poor washing on the top rack or noisy

General Dishwasher Cleaning