Dishwasher Not Cleaning Dishes Properly? Here's How to Fix It

A dishwasher that doesn't clean properly defeats its purpose. Before calling for repair, try these troubleshooting steps.

Common Causes and Solutions

1. Clogged Spray Arms

Food particles can clog the small holes in spray arms, reducing water pressure and cleaning effectiveness.

**Fix:** Remove the spray arms and clean out the holes with a toothpick or small brush. Rinse thoroughly before reinstalling.

2. Dirty Filter

Most modern dishwashers have a filter that catches food debris. A clogged filter reduces cleaning performance.

**Fix:** Locate the filter (usually at the bottom of the tub), remove it, and clean under running water. Do this monthly.

3. Incorrect Loading

Overloading or improper loading blocks water spray and prevents proper cleaning.

**Tips:** - Don't nest items together - Face dirty surfaces toward the spray arms - Keep items from blocking the soap dispenser - Leave space between items

4. Water Temperature Issues

Water should be at least 120°F for optimal cleaning. Run hot water at your sink before starting the dishwasher.

5. Wrong Detergent or Amount

Using too little, too much, or the wrong type of detergent affects cleaning. Use fresh detergent and follow package directions.

6. Hard Water Problems

Mineral deposits can build up on dishes and inside the dishwasher, reducing cleaning effectiveness.

**Solution:** Use a dishwasher cleaner monthly and consider a rinse aid.

When to Call a Professional

• Water isn't spraying properly even after cleaning spray arms
• The dishwasher doesn't fill with water
• Water doesn't heat up
• The soap dispenser doesn't open
• You see visible damage to components

Maintenance Schedule

**Weekly:** - Wipe door edges and gasket - Check spray arm rotation

**Monthly:** - Clean the filter - Run a cleaning cycle - Check and clean spray arm holes

**Annually:** - Inspect door gasket for damage - Check for leaks - Professional inspection for older units

Proper loading and regular maintenance will keep your dishwasher cleaning effectively for years.