Dishwasher Water Inlet Valve Failing — 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 dishwasher water inlet valve controls water entering the machine when a cycle starts. It is an electrically‑operated solenoid valve that opens when the control board sends voltage, allowing household water pressure into the tub. When this valve fails it can cause several problems: the dishwasher won't fill, fills very slowly, runs continuously, or leaks at the valve connection. Failures are commonly caused by a burned coil (no electrical actuation), internal valve debris or mineral buildup blocking flow, a torn internal diaphragm that won’t shut off, or a leaky valve body. Before ordering parts, you should confirm the valve is the root cause — sometimes the issue is low house water pressure, a blocked inlet screen, or a faulty float/door switch or control board that never signals the valve to open.
Common Symptoms
Dishwasher won’t fill or fills slowly; dishwasher overfills or runs continuously; water leaking at the water inlet connection; error codes related to water fill (varies by brand).
Common Causes
- Failed solenoid coil or internal electrical fault in the inlet valve
- Clogged inlet screen or mineral buildup preventing flow
- Leaky internal diaphragm or valve body causing continuous fill or leaks
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
Turn off power and water, remove the access panel, and check the inlet valve screen for debris. Then test the valve coil for continuity with a multimeter — an open coil means replace the valve. If the coil has continuity, verify the control sends 120V (or the model's rated voltage) to the valve during a fill cycle.
Frequently Asked Questions
Can I replace the dishwasher inlet valve myself?
Yes — if you’re comfortable turning off power and water, disconnecting plumbing, and using basic tools. Safety steps: shut off the breaker and the household water supply first. Remove the lower access panel, disconnect the water line and electrical connectors, swap the valve, then reconnect and test. If you’re unsure about wiring or finding the correct part, call a qualified appliance technician.
How much does it cost to replace the inlet valve?
Part prices typically range from $30–$120 depending on brand and model. Labor (if you hire a technician) commonly adds $75–$200 depending on local rates. Total cost usually runs $100–$300. Exact cost depends on the specific valve required for your dishwasher model and whether additional repairs (e.g., damaged water line or control board) are needed.
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.