Dishwasher Not Cleaning Dishes Properly? Common Causes
Dishes coming out cloudy or still dirty? Here’s what to check first.
A dishwasher that runs a full cycle but leaves dishes cloudy, gritty, or still visibly dirty is one of the most common complaints we hear, and it’s often fixable without a technician visit.
Clogged Spray Arms
The spray arms have small holes that can get clogged with food particles or, in areas with harder water, mineral deposits. Clogged holes mean uneven or weak water pressure reaching your dishes.
A Dirty Filter
Most modern dishwashers use a removable filter at the bottom of the tub instead of a garbage-disposal-style grinder. If this filter isn’t cleaned regularly, food debris recirculates onto your dishes instead of draining away.
Hard Water and Mineral Buildup
Florida’s water can leave mineral deposits inside the dishwasher over time, contributing to a cloudy film on glassware and reduced spray arm performance.
Water Temperature Issues
Dishwashers rely on hot water to activate detergent properly. If your water heater is set too low, or the dishwasher isn’t getting hot water at the start of the cycle, cleaning performance drops noticeably.
Overloading or Blocking Spray Arms
Large items blocking the spray arm’s rotation, or an overloaded rack, can prevent water from reaching every dish evenly.
Quick Checks Before You Call
- Remove and clean the bottom filter (check your manual for how it releases)
- Clean spray arm holes with a toothpick or thin wire
- Run the hot water at the kitchen sink faucet first, so the dishwasher starts with hot water
- Try a rinse-aid and a dishwasher-cleaner cycle to clear mineral buildup
Typical Repair Cost Ranges
| Issue | Typical Cost Range |
|---|---|
| Spray arm cleaning or replacement | $60 – $150 |
| Water inlet valve replacement | $130 – $250 |
| Heating element replacement | $150 – $300 |
These are general estimates based on typical industry pricing for this type of repair — your exact cost depends on the appliance’s make, model, and what’s actually wrong with it. Call for a free, no-obligation quote before any work begins.
Frequently Asked Questions
Dishwasher Not Cleaning Dishes Properly?
We’ll identify the exact cause — often a simple, affordable fix.