Dishwasher Not Cleaning Dishes – What Part Fixes This Problem?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
When your dishwasher runs a full cycle but dishes come out dirty, cloudy, or with food residue still stuck on them, it usually indicates a water circulation or temperature problem. Clogged spray arms, a worn wash pump, a faulty water inlet valve, or insufficient water temperature are the most common causes. Identifying the right part to replace will have your dishwasher cleaning like new again.
Where to Buy Appliance Parts (Price Comparison)
Looking for the best place to buy appliance parts? Here's a quick comparison of popular online stores.
| Store Name | Price Range | Shipping | Restocking Fees | Overall Value |
|---|---|---|---|---|
| PartsDiscount.com | Lower Cost Options Available | FREE Shipping | NO Restocking Fees | Best Value ★★★★★ |
| AppliancePartsPros | Higher Prices | Paid Shipping | Yes (Varies) | Good ★★★☆☆ |
| RepairClinic | Higher Prices | Paid Shipping | Yes | Good ★★★☆☆ |
| PartSelect | Moderate to High | Paid Shipping | Yes | Average ★★☆☆☆ |
PartsDiscount.com
AppliancePartsPros
RepairClinic
PartSelect
Prices, policies, and availability may vary by retailer and are subject to change.
Common Causes
- Clogged spray arm holes
- Clogged spray arms
- Failing wash pump
- Worn or failing wash pump motor
- Dirty filter
- Faulty water inlet valve providing low water flow
- Faulty water inlet valve
- Insufficient water temperature
- Broken spray arm bearing or seal
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at PartsDiscount.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Start by inspecting the spray arms—remove them and check for clogged holes. Use a toothpick or small wire to clear any debris from the spray arm holes. Also check your water temperature: run the hot water at your kitchen sink until it's hot before starting the dishwasher, as the dishwasher needs water at least 120°F (49°C) to clean effectively. If spray arms are clear and water is hot enough, the wash pump or water inlet valve may need replacing.
Brand-Specific Issues
Common problems reported by brand
LG
"LG dishwasher control panel unresponsive"LG dishwashers can develop an unresponsive touchpad or control panel, often caused by moisture reaching the touch sensors behind the panel. This is especially common in humid environments or when steam from the drying cycle seeps into the control area. Try disconnecting power for 5 minutes to reset. If the problem persists, the control board or touchpad assembly may need replacement.
Whirlpool
"Whirlpool dishwasher not cleaning"Whirlpool dishwashers that leave dishes dirty often have a failing circulation pump or clogged spray arms. Food debris can build up in the spray arm ports over time, reducing water pressure. Start by removing and cleaning the spray arms and filter assembly. If cleaning doesn't help, the circulation pump motor may need replacement.
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at PartsDiscount.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to PartsDiscount.com where you can search by model number and get the right part shipped fast.