Dishwasher Clicking Noises 2026: Troubleshooting Guide

I still remember the first time my dishwasher started making that rhythmic clicking sound. It was 11 PM, the house was quiet, and suddenly I heard this persistent click… click… click coming from the kitchen. My first thought was panic. Was my dishwasher about to flood my kitchen? Was this the beginning of an expensive repair?

After 15 years of appliance troubleshooting and talking with countless repair technicians, I have learned that dishwasher clicking noises are incredibly common. Some clicks are completely normal operational sounds. Others are warning signs that need immediate attention. The key is knowing how to tell the difference.

In this guide, I will walk you through everything I have learned about dishwasher clicking noises. You will discover the most common causes, how to diagnose the problem yourself, when you can fix it with a $15 part, and when you need to call a professional. I will also cover brand-specific issues for Whirlpool, Bosch, Samsung, and Frigidaire dishwashers since each manufacturer has unique quirks that affect diagnosis.

Whether your dishwasher clicks at startup, during the wash cycle, or when draining, this guide will help you identify the cause and take the right action. Let us start with the quick answer you are probably looking for right now.

Quick Answer: Why Your Dishwasher Is Clicking

Dishwasher clicking noises are typically caused by the detergent dispenser opening during the wash cycle, which is completely normal. Other common causes include the drain solenoid activating during the drain cycle, the control board relay switching power between components, or a door latch failing to engage properly.

Normal clicking happens once or twice per cycle at predictable times. Abnormal clicking is persistent, rhythmic, happens at unexpected times, or prevents the dishwasher from starting. If your dishwasher clicks but will not start, or the clicking is constant throughout the cycle, you likely have a component that needs repair.

Now that you have the quick answer, let us dig deeper into distinguishing between normal operational sounds and warning signs that indicate problems.

Normal vs Abnormal Dishwasher Clicking Noises

Not every click means your dishwasher is broken. In fact, most clicking sounds are completely normal parts of the cleaning cycle. Here is how to tell the difference:

Normal Operational Clicking

Your dishwasher should make brief clicking sounds at specific points in the cycle. The detergent dispenser clicks once during the main wash to release soap. The drain solenoid clicks when the dishwasher switches between washing and draining. The control board relay clicks when power shifts between the wash pump and drain pump.

These normal clicks are brief, isolated events. You might hear one or two clicks during a complete cycle. They happen at predictable times, about 10-15 minutes into the cycle for the dispenser, and during the drain phase for the solenoid.

Abnormal Warning Clicking

Warning signs include rhythmic clicking that repeats continuously, clicking that prevents the dishwasher from starting, loud grinding or clicking combined together, or clicking that starts suddenly after months of quiet operation. If the clicking is accompanied by water leaking, burning smells, or the dishwasher stopping mid-cycle, you have a problem that needs immediate attention.

I have created a simple reference table to help you identify what you are hearing:

Clicking Sound Reference Guide

Single click mid-cycle: Normal detergent dispenser opening. No action needed.

Click during drain phase: Normal drain solenoid activation. No action needed.

Rhythmic clicking every few seconds: Likely drain pump valve cycling. Check for obstructions.

Clicking but dishwasher won’t start: Door latch or control board relay issue. Requires repair.

Grinding + clicking together: Foreign object in pump or failing motor. Stop using immediately.

Now let us examine the specific components that cause clicking noises, starting with the most common culprit.

Detergent Dispenser Clicking (Most Common)

The detergent dispenser is the single most common source of clicking noises in dishwashers. This is actually a normal sound, but many homeowners mistake it for a problem.

How the Dispenser Mechanism Works

The detergent dispenser is a spring-loaded compartment on the dishwasher door. At a specific point in the wash cycle, typically 10-15 minutes after starting, a timer or electronic control sends a signal to open the dispenser. A small wax motor or solenoid activates, releasing a catch that allows the dispenser door to spring open. That spring release creates a single, distinct clicking sound.

When the dispenser opens, detergent falls into the wash water below. This is essential for the cleaning process. Without this click, your dishes would not get properly cleaned.

When Dispenser Clicking Becomes a Problem

While a single click is normal, multiple clicks or a dispenser that clicks but does not open indicates a problem. The wax motor might be failing. The spring might be stuck. The catch mechanism might be gummed up with old detergent residue.

If you hear the click but the dispenser door does not visibly open, check for caked detergent blocking the mechanism. Soak the dispenser area with warm water and gently clean around the edges. This simple fix resolves about 30% of dispenser clicking complaints.

DIY Difficulty Rating: Easy. No tools required. Just cleaning and observation.

Dispenser Clicking During Wrong Cycle Phase

Sometimes the dispenser clicks at the wrong time, such as during the rinse cycle instead of the wash cycle. This usually indicates a timer mechanism problem in older dishwashers or a control board issue in newer models. The dishwasher thinks it is time to dispense soap when it is not.

Timer-related clicking issues are becoming less common as electronic controls replace mechanical timers, but they still occur in older Whirlpool and Frigidaire models from before 2015.

Drain Pump and Drain Solenoid Issues

The drain system is the second most common source of clicking sounds, and these clicks often indicate actual problems rather than normal operation.

How the Drain Solenoid Creates Clicking

The drain solenoid is an electromagnetic switch that controls the drain pump. When the dishwasher needs to drain water, the control board sends power to the solenoid. The solenoid pulls a lever that opens a valve or activates the pump. This creates a distinct clicking sound.

A single click when the dishwasher transitions from wash to drain is completely normal. However, rhythmic clicking every few seconds during the drain phase is not normal.

Rhythmic Clicking: The Drain Pump Valve Cycling Problem

If your dishwasher makes a repeated clicking sound every 3-5 seconds during the drain cycle, the drain pump valve is likely cycling on and off. This happens when the pump cannot maintain consistent operation.

Common causes include a clogged drain hose creating back pressure, a failing drain pump motor drawing too much current and tripping a thermal protector, or a partially obstructed pump impeller that spins intermittently.

I found a discussion on Reddit where a homeowner described exactly this symptom. The rhythmic clicking turned out to be a defective pump storage assembly causing water leakage. The user attempted a DIY repair but reported it did not go well, eventually requiring professional service.

DIY Difficulty Rating: Moderate. Requires accessing the pump, checking hoses, and potentially replacing the drain pump. Basic hand tools needed.

Soft Food Disposer Clicking

Some dishwashers, particularly older GE and Hotpoint models, include a soft food disposer that grinds up small food particles. A clicking sound during wash cycles can indicate hard objects like bones, fruit pits, or glass in the disposer chamber.

Stop the dishwasher immediately if you hear grinding or loud clicking from the disposer area. Remove the lower rack and check the disposer for foreign objects. Hard debris can damage the disposer blades or motor.

Circulation Pump and Motor Problems

The circulation pump is the heart of your dishwasher. It pushes water through the spray arms to clean your dishes. When this pump starts clicking, you often have a serious mechanical issue.

How Circulation Pump Failure Sounds

A failing circulation pump typically produces a combination of clicking and humming. The click happens when the pump tries to start but cannot turn the impeller. The hum is the motor straining against an obstruction or failed bearing.

If you hear this clicking-humming combination, stop using the dishwasher immediately. Running a dishwasher with a failing circulation pump can overheat the motor and damage the control board.

Impeller Obstruction Clicking

Sometimes the circulation pump clicks because something is blocking the impeller. Common obstructions include broken glass from a cup or dish, small utensils that fell through the rack, food debris that bypassed the filter, or labels from jars and containers.

The obstruction prevents the impeller from spinning freely. The motor clicks as it tries to turn against the blockage. If the obstruction is hard enough, the motor may eventually burn out trying to overcome it.

DIY Difficulty Rating: Hard. Requires removing the lower spray arm, filter, and pump cover to access the impeller. Some models require tilting the dishwasher or removing the lower access panel.

Pump Housing Cracks

A less common but serious cause of clicking is a cracked pump housing. The pump housing contains the water and directs it to the spray arms. A crack allows water to leak out, creating clicking sounds as air enters the system and water pressure fluctuates.

Pump housing cracks usually occur after years of use or if the dishwasher was damaged during installation. They are difficult to diagnose without visual inspection and typically require professional repair.

Control Board Relay and Door Latch Failures

Electrical components can also create clicking noises. These clicks often indicate control problems rather than mechanical failures.

Control Board Relay Clicking

Modern dishwashers use electronic control boards to manage the cycle. The board contains relays, which are electromagnetic switches that turn power on and off to different components. When the board activates the drain pump, wash pump, or heating element, you hear a click from the relay.

Normal relay clicking happens when components turn on or off. Abnormal relay clicking happens rapidly, repeatedly, or when nothing should be turning on. A clicking control board relay that does not activate the corresponding component indicates board failure.

I have seen cases where the control board relay clicks but the dishwasher does not start. This happens because the relay is attempting to activate a component, but the component circuit is broken or the component itself has failed.

DIY Difficulty Rating: Hard to Professional. Control boards are expensive and sensitive to static electricity. Incorrect installation can damage the new board.

Door Latch Clicking But Not Engaging

The door latch has a microswitch that tells the control board when the door is securely closed. If the latch is worn or damaged, it might click when you press the start button but fail to complete the electrical circuit.

Symptoms include pressing start and hearing a click from the latch area, the dishwasher not starting or responding, the control panel lighting up but no cycle beginning, or the door feeling loose or not sealing properly.

The door latch is actually one of the easier DIY repairs. The part typically costs $20-40, and replacement takes about 30 minutes with basic tools.

DIY Difficulty Rating: Easy to Moderate. Requires a screwdriver and careful attention to wire placement.

Clicking During Different Cycle Phases

When your dishwasher clicks can tell you a lot about what is causing the noise. Here is a phase-by-phase breakdown:

Clicking at Startup (Before Water Enters)

If your dishwasher clicks immediately when you press start but does not fill with water, suspect the door latch, control board relay for the water inlet valve, or the water inlet valve solenoid itself.

The dishwasher is attempting to start the fill cycle but cannot complete the sequence. Check that the door is fully closed and latched. Listen for a humming sound along with the click, which indicates the water valve is trying to open but may be stuck or have no water supply.

Clicking During Fill Cycle

Clicking while the dishwasher fills with water usually indicates a water inlet valve problem. The valve solenoid might be cycling due to low water pressure or a partially clogged inlet screen.

Check your home’s water pressure and clean the inlet valve screens. The screens are located where the water supply line connects to the dishwasher. Turn off the water supply before attempting this check.

Clicking During Wash Cycle

Clicks during the wash cycle typically come from the detergent dispenser opening, the wash pump turning on and off if you have a variable-speed pump, or the soft food disposer activating.

If the clicking is constant throughout the wash cycle rather than isolated events, check for spray arm obstruction. A utensil or dish blocking the spray arm can cause rhythmic clicking as the arm hits the obstruction with each rotation.

Clicking During Drain Cycle

The drain cycle is when most problematic clicking occurs. Normal drain clicking is a single sound at the start of draining. Abnormal clicking is rhythmic, continuous, or grinding.

Drain-related clicking that requires attention includes rapid clicking from the drain solenoid cycling, grinding from the drain pump trying to move a hard object, or humming-clicking combinations from a failing drain pump motor.

Brand-Specific Dishwasher Clicking Problems

Each dishwasher manufacturer designs their appliances with unique components and common failure modes. Understanding these brand-specific patterns can speed up your diagnosis.

Whirlpool and KitchenAid Dishwasher Clicking

Whirlpool and KitchenAid dishwashers are known for reliable operation, but they have specific clicking issues. The most common is the detergent dispenser wax motor failing in models from 2010-2018. The wax motor expands to open the dispenser, and when it fails, you might hear clicking without the dispenser opening.

Another Whirlpool-specific issue is the pump and motor assembly mounting. Some models develop clicking sounds when the motor mountings loosen over time. The motor moves slightly during operation, creating a rhythmic click against the dishwasher frame.

Whirlpool dishwashers with the Quiet Partner sound package also have a circulation pump design that can click if the pump seal wears out. The click coincides with water pressure pulses through the spray arms.

Bosch Dishwasher Clicking

Bosch dishwashers are engineered for quiet operation, so any clicking sound is more noticeable. The most common Bosch clicking issue is the drain pump check valve. European-designed Bosch units use a different drain system than American brands, and the check valve can click if debris prevents it from seating properly.

Bosch models with the ActiveWater system may click during the water heating phase. The heating element relay and circulation pump switching can create a distinct click-click pattern as the system maintains water temperature.

Another Bosch-specific issue is the aquastop safety system. If the dishwasher detects a leak, the aquastop valve can create clicking sounds as it attempts to seal. This is actually a protective feature, but it indicates you have or had a leak that needs addressing.

Samsung Dishwasher Clicking

Samsung dishwashers have gained popularity but have some known clicking issues. The linear wash system used in some Samsung models can click if the spray arm guide track gets debris in it. The arm moves linearly rather than rotating, and obstructions create clicking sounds.

Samsung’s StormWash models have additional nozzles that can click if water pressure is inconsistent. The nozzles have moving parts that adjust spray patterns, and low water pressure causes them to chatter or click.

The control panel on some Samsung dishwashers is also a clicking source. Touch-sensitive panels can create audible feedback clicks, and some users report excessive clicking from the touch sensors.

Frigidaire Dishwasher Clicking

Frigidaire dishwashers, including Electrolux brand units, often develop clicking from the spray arm bearing. The spray arm rotates on a plastic bearing that wears over time. When worn, the arm wobbles and clicks against the lower rack or pump housing.

Another Frigidaire-specific issue is the drain solenoid on older models. Frigidaire used a particularly loud drain solenoid design in units manufactured between 2008-2016. The click is normal but startlingly loud compared to other brands.

Frigidaire’s OrbitClean spray arm system can also click if the satellite spray arm becomes clogged or stuck. The arm is designed to rotate independently, and mineral buildup from hard water can cause clicking.

DIY Troubleshooting: How to Diagnose Clicking Noises

Before calling a repair technician, you can perform several diagnostic steps yourself. Here is the systematic approach I use:

Step 1: Observe and Document

Run the dishwasher and note exactly when clicking occurs. Write down the cycle phase, the frequency of clicks, and any other sounds accompanying the clicking. Use your phone to record the sound if possible. This recording can help a technician diagnose the problem remotely or help you find matching symptoms online.

Step 2: Check the Door Latch

Open and close the door firmly. You should hear a solid click when the latch engages. If the click is weak, mushy, or absent, the latch may be the problem. Try starting the cycle while pressing firmly on the door. If the dishwasher starts with pressure but not without, the latch needs adjustment or replacement.

Step 3: Inspect for Obstructions

Remove the lower dish rack and inspect the filter area. Remove any visible debris. Spin the lower spray arm by hand. It should rotate freely without catching on anything. If you feel resistance or hear clicking during manual rotation, something is obstructing the spray arm or pump.

Step 4: Clean the Filter and Spray Arms

Remove the filter according to your owner’s manual. Rinse it thoroughly under warm water. Remove the spray arms and rinse them, checking the holes for clogs. Use a toothpick or pipe cleaner to clear any blocked spray holes. Mineral deposits and food debris can cause clicking by disrupting water flow.

Step 5: Check the Water Inlet

Turn off the water supply to the dishwasher. Disconnect the water supply line at the dishwasher inlet valve. Check the inlet screen for debris. Clean the screen with an old toothbrush and rinse thoroughly. Reconnect the supply line and turn the water back on.

Step 6: Test the Detergent Dispenser

Load detergent into the dispenser and start a cycle. Wait 15 minutes, then check if the dispenser opened. If you heard a click but the dispenser did not open, the wax motor or latch mechanism needs replacement.

Safety Warnings for DIY Repairs

Always unplug the dishwasher or turn off the circuit breaker before working on internal components. Even with the power off, capacitors on the control board can hold a charge. Water and electricity do not mix, ensure the dishwasher is drained before working on the pump area. If you are uncomfortable with any step, call a professional.

DIY vs Professional Repair Costs

One of the biggest concerns homeowners have is whether a repair is worth the cost. Here is a realistic breakdown of what you can expect to pay for common clicking noise repairs.

DIY Repair Costs

Detergent dispenser replacement: $15-30 for the part. Takes 20 minutes. Difficulty: Easy.

Door latch assembly: $20-45 for the part. Takes 30-45 minutes. Difficulty: Easy to Moderate.

Drain pump replacement: $40-80 for the part. Takes 1-2 hours. Difficulty: Moderate.

Water inlet valve: $25-50 for the part. Takes 45 minutes. Difficulty: Moderate.

Control board: $150-300 for the part. Takes 30 minutes but requires careful handling. Difficulty: Hard.

Professional Repair Costs

Professional dishwasher repair typically costs $100-150 for the service call and diagnostic fee, plus parts and labor. Total costs usually range from $150 for simple repairs like door latches or dispensers, $250-400 for pump replacements or circulation motor repairs, and $400-600 for control board replacements or multiple component failures.

Most repair companies charge a flat rate for common repairs rather than hourly labor. This works in your favor for complex repairs that take longer but against you for simple fixes you could do yourself.

When to Call a Professional

Call a repair technician if you are not comfortable working with electrical components, the repair requires accessing components behind the dishwasher, you have water leaking along with the clicking, or the diagnosis is unclear after basic troubleshooting.

Also consider professional repair if your dishwasher is under warranty, as DIY repairs may void coverage. Check your warranty documentation before attempting repairs.

When to Replace Your Dishwasher Instead of Repairing

Sometimes repairing a clicking dishwasher is not the smartest financial decision. Here is how to know when replacement makes more sense.

The 50% Rule

The general rule in appliance repair is that if the repair cost exceeds 50% of the replacement cost, you should replace rather than repair. For a $800 dishwasher, that means repairs over $400 are questionable. For a $500 dishwasher, the threshold is $250.

Average Dishwasher Lifespan

Most dishwashers last 9-12 years with proper maintenance. If your dishwasher is over 10 years old and needs an expensive repair, replacement is usually the better investment. You will get a new warranty, improved efficiency, and modern features.

New dishwashers use significantly less water and energy than models from 10 years ago. You may save enough on utility bills to offset part of the replacement cost over the appliance’s lifetime.

Multiple Failure Signs

If the clicking is accompanied by other problems, replacement might be your best option. Consider replacement if the dishwasher has rust inside the tub, racks are corroding or coating is flaking, multiple cycles are failing, dishes are not getting clean despite proper loading, or the unit requires frequent repairs.

If you decide replacement is the right choice, check out our guide to the best dishwasher deals to find current discounts on reliable models. We update this guide monthly with the latest sales from major retailers.

How to Prevent Future Clicking Noises

The best way to deal with dishwasher clicking is to prevent it in the first place. Here are the maintenance habits that keep your dishwasher running quietly:

Clean the Filter Monthly

Remove and rinse the filter under warm water every month. Food debris builds up in the filter and can eventually reach the pump, causing obstructions that lead to clicking. A clean filter also helps your dishwasher clean better.

Check Spray Arms Quarterly

Inspect the spray arm holes for clogs every three months. Use a toothpick or pipe cleaner to clear any blockages. Spin the spray arms to ensure they rotate freely. Lubricate the spray arm bearing if your owner’s manual recommends it.

Use the Right Detergent

Use only dishwasher-specific detergent. Regular dish soap creates excessive suds that can interfere with pump operation and cause unusual sounds. Follow the manufacturer’s recommended amount, more detergent is not better and can leave residue that gums up dispensers.

Load Dishes Properly

Ensure dishes do not block the spray arms. Tall items in the lower rack can prevent the lower spray arm from rotating, causing clicking as the arm hits obstructions. Secure lightweight items that might flip and interfere with moving parts.

Run Hot Water Before Starting

Run your kitchen faucet until the water is hot before starting the dishwasher. This ensures the dishwasher fills with hot water immediately, reducing strain on the heating element and promoting proper detergent activation.

If you are concerned about noise levels when shopping for a new dishwasher, our guide to quiet dishwashers highlights models that operate at whisper-quiet decibel levels. Some modern dishwashers run as quietly as 42 dBA, quieter than a normal conversation.

Frequently Asked Questions

Conclusion

Dishwasher clicking noises range from completely normal operational sounds to warning signs of impending failure. By understanding the difference between a single detergent dispenser click and rhythmic drain pump cycling, you can make informed decisions about when to take action.

Most clicking issues are either normal and require no action, or simple DIY fixes costing under $50 in parts. Door latches, detergent dispensers, and clogged filters are common culprits that homeowners can address themselves. However, control board failures and circulation pump problems usually require professional expertise.

If your dishwasher is relatively new and experiencing clicking problems, do not panic. Start with the basic troubleshooting steps outlined in this guide. Clean the filters, check for obstructions, and listen carefully to when the clicking occurs. For older dishwashers facing expensive repairs, consider whether replacement might be the smarter investment.

For more dishwasher advice, explore our dishwasher guides covering everything from quiet operation to energy efficiency. With proper maintenance and timely attention to unusual sounds, your dishwasher should provide years of reliable service.