Dishwasher Circulation Pump Replacement – What Part Fixes This Problem?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
The circulation (wash) pump in a dishwasher moves water from the sump through the spray arms so dishes get sprayed and cleaned. When the circulation pump fails you may get no spray, weak spray, loud grinding noises, or the washer may stop mid-cycle. Because the pump combines an electric motor and an impeller inside a housing that seals to the sump, failures usually show up as electrical faults, mechanical seizure, seal leaks, or worn impellers. Replacing the circulation pump is a common repair. Diagnosis starts with confirming the issue isn’t a blocked filter, clogged spray arm, or a faulty control board. Once you’ve isolated the problem to the pump, you’ll typically replace the pump/motor assembly or, in rare cases, just the impeller or seal. Always match replacement parts to the dishwasher model number for fit and compatibility.
Common Symptoms
No spray or weak spray, loud grinding or humming during the wash, water leaking under the dishwasher, dishwasher stops mid-cycle, error codes related to water circulation or motor faults.
Common Causes
- Impeller jammed by broken glass, food debris, or hard particles
- Motor failure (electrical open windings or shorted motor)
- Worn or cracked pump housing or seals causing leaks and loss of pressure
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
Before buying a pump, remove the bottom access panel, check for foreign objects in the sump, and run a diagnostic cycle while listening — a humming motor with no water flow usually means a seized impeller or damaged pump; an open circuit on a multimeter points to a failed motor.
Frequently Asked Questions
How do I confirm the circulation pump is the problem?
Start by removing the lower access and checking for blockages in the filter and sump. Run a diagnostic or a short wash cycle and listen: a healthy pump sounds like a steady whirring; a bad pump may hum without spinning or produce grinding. Unplug power, disconnect the pump wiring, and measure motor windings with a multimeter — a very high or open resistance indicates a failed motor. Visible damage to the impeller, housing cracks, or leaks at the pump seal are also definitive signs.
Can I replace the dishwasher circulation pump myself?
Yes, many DIYers can replace a dishwasher pump. You'll need basic tools (screwdrivers, pliers, multimeter), the correct replacement part for your model, and to shut off power and water first. The job usually involves removing the lower kickplate, disconnecting electrical connectors and hoses, removing the old pump, and installing the new assembly with new gaskets. If you’re not comfortable working with electrical components or removing the dishwasher, consider hiring a professional.
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.