Samsung Dishwasher Problems & Solutions [Ultimate Guide]

Samsung has built a good reputation for making good, reliable, value for money appliances. Whilst many users are satisfied with their Samsung dishwashers, others have reported experiencing some issues.

In this article we take a look at the 10 most reported problems with Samsung dishwashers and offer solutions to these issues. Many of which can be solved without any DIY skills or knowledge at all.

If you own a Samsung dishwasher and it’s developed a problem, keep reading to find out just how easy (or not) it is to fix.

The Most Commonly Reported Problems With Samsung Dishwashers

Below we have listed the most commonly reported problems faced by Samsung dishwasher owners. Some of these issues are easy to fix, whilst others will require expert help. They include;

ProblemSolution
Dishwasher Not Cleaning DishesCheck hoses for any blockages, check the inlet valve is working correctly, ensure dishes are loaded correctly, ensure the filter is clean, ensure the spray arms are working properly, run a hot cleaning cycle at least once per month
Dishwasher Not DrainingRemove and clean the drain filter and make this a part of your monthly cleaning schedule,check the drain hose for twists, kinks or blockages and remove as necessary, ensure the dishwasher is set on a level floor to prevent any pooling of water in one area, check the waste disposal unit, air gap or sink waste pipe for blockages, ensure you only use the correct type of detergent in the right quantity
Dishwasher Not Filling With WaterCheck that the water inlet hose is free from twists, kinks or blockages, check that the water inlet valve is working properly, check that the inlet tap is fully opened, check the home’s stopcock is opened fully, check the home’s water supply
Dishwasher’s Touchpad Not WorkingClean the touchpad buttons using a cotton wool ball dipped in rubbing alcohol to remove any dirt, grime or other residue, if that fails to clear the issue, contact a technician
Dishwasher’s Buttons Not WorkingClean the touchpad buttons using a cotton wool ball dipped in rubbing alcohol to remove any dirt, grime or other residue, contact a technician
Dishwasher Fails To StartInspect the power cord for any fraying or damage, check that the wall socket is working and switched on, check that the circuit breaker is in the on position, check that the water supply is turned on and working correctly, reset the dishwasher, contact a technician
Dishwasher Won’t Turn OffCheck the door latch for any signs of damage or misalignment, check to see if there’s still power going to the appliance, contact a technician
Dishwasher Not Drying DishesEnsure you selected a cycle that includes drying, check the heating element, contact a technician
Dishwasher Turning On And OffCheck that the power setting is stable, check the thermostat is working correctly, check the relay switch isn’t defective, check the wiring and connections in the dishwasher, contact a technician
Heavy Light FlashingCheck that the power cord is fitted correctly, check the water inlet valve is working correctly, remove and clean the drain filter

Let’s take a closer look at each of these issues;

Dishwasher Not Cleaning Dishes

loading a dishwasher

If you find that your Samsung dishwasher isn’t cleaning the dishes and other items properly it can be worrying and annoying. However, there are a few things you can do to prevent this from being a problem. Which include;

  • Ensure you select a wash cycle suitable for the level of soiling on your dishes
  • Check that all dishes are placed correctly in the racks with no overloading or overlapping of dishes
  • Check that the spray arms aren’t hindered, dirty and that the nozzles aren’t blocked
  • Check and clean the drain filter for any food or other particles causing a blockage
  • Check the drain hose for twists, kinks or blockages
  • Check that the inlet hose and valve are working properly and allowing enough water into the tub
  • Run a hot cleaning cycle to remove any food particles, debris, detergent buildup or anything else that could cause the dishwasher to become backed up with dirty water at least once per month

Selecting The Correct Cycle

Not all wash cycles are good enough to remove heavy soiling from all dishes. You need to ensure you select the correct cycle for the level of dirt on your dishes.

Check The Placement Of Dishes

One of the main causes of dishes not getting cleaned properly is incorrect placement. You need to ensure that no dishes overlap each other and each one is in a single space of its own.

Cups, glassware and bowls should be placed face down on the top rack along with large utensils which should be laid flat. Plates should be placed on the bottom rack facing inwards each in an individual slot.

With cutlery placed in the cutlery basket alternately to avoid nesting.

Check The Spray Arms

All of the water that touches your dishes comes through the spray arms. If the spray arms are not allowed to freely turn due to a stray utensil, pot handle or ill placed plate, the dishes will not get cleaned properly.

The spray arms themselves can become clogged or blocked due to food particles, debris and limescale which can prevent water from flowing freely.

You will need to remove the spray arms, give them a wash using warm soapy water and inspect the nozzles for any blockages. If the nozzles are blocked, you can remove the blockage using a toothpick. But take care to ensure you actually remove the blockage and don’t force it further into the nozzle.

Check The Drainage System

Dishes might not get cleaned properly if they are being washed in dirty water. If the filter is clogged with food particles and other debris it can prevent wastewater from leaving the dishwasher.

You will need to check the filter and clean it to remove any food or other debris. You should also inspect the drain hose as this can become twisted, kinked or blocked.

Straighten any kinks or twists and remove any blockages using a plumber’s snake.

Check The Inlet System

You should also check that enough water is getting into the tub to wash the dishes correctly. This means inspecting the inlet hose, inlet tap and inlet valve as well as the small screen situated just inside the inlet lug on the dishwasher.

Check that the hose isn’t twisted or kinked, the inlet tap is turned on, the screen is free from any blockages and the inlet valve is working properly.

Run A Hot Service Wash Regularly

To prevent any further issues, it is advisable to run an empty hot service wash at least once per month. You can use a commercial dishwasher cleaner or a bowl of white vinegar to remove any dirt debris and limescale buildup from the appliance.

Once the service wash has finished, wipe the door seal with a soft cloth soaked in a white vinegar/warm water solution. Clean the detergent dispenser using the same cloth, then rinse and dry the door seal and detergent dispenser and remove and clean the filter.

Dishwasher Not Draining

Dishwasher

If your Samsung dishwasher isn’t draining correctly, you should;

  • Remove and clean the drain filter and make this a part of your monthly cleaning schedule
  • Check the drain hose for twists, kinks or blockages and remove as necessary
  • Ensure the dishwasher is set on a level floor to prevent any pooling of water in one area
  • Check the waste disposal unit, air gap or sink waste pipe for blockages
  • Ensure you only use the correct type of detergent in the right quantity

Clean The Filter

Check your user manual for the exact location and removal instructions for your dishwasher’s filter. Once removed, you should wash all parts of the filter in warm soapy water.

Any stubborn stains can be removed using a toothbrush and for extra stubborn stains soak in a white vinegar/warm water solution (50:50 mix).

Inspect The Drain Hose

You should inspect the drain hose for any twists, kinks or signs of blockage and straighten any twists or kinks. If the drain hose is blocked, you can remove any blockages using a plumber’s snake.

Inspect The Waste Disposal Unit/Air Gap/Sink Waste Pipe

If your dishwasher is connected to a waste disposal unit, air gap or the kitchen sink waste pipe, check these for blockages and remove as necessary.

The waste disposal can often be cleared simply by running it for 30 seconds or so, the air gap will need inspecting and any blockage removed using a pair of tweezers or similar, and the sink waste pipe can be cleared using a plunger, plumber’s snake or commercial drain cleaner.

Incorrect Type Of Detergent Used

dishwasher pods

If you use the wrong type of detergent like washing up liquid for instance, there will be too many soap suds present in the dishwasher which can prevent it from draining correctly. This can also be caused by using too much of the right type of detergent.

Either way, prevention is better than cure which is why we recommend using the correct type of dishwasher detergent in the right quantity. 

If you do experience too many soap suds, try placing a bowl of milk on the top rack and running a short wash cycle. The soap suds will bind with the fat content in the milk and soak away with the wastewater.

Unlevel Appliance

Your dishwasher should be sited on a level floor to prevent any water from pooling in one area. You can check the level using a spirit level which should be used to check front to back as well as side to side.

You can adjust the level by using the adjustable feet on the bottom of the dishwasher’s legs.

Dishwasher Not Filling With Water

If your Samsung dishwasher isn’t filling with water or is taking an extraordinary long time to fill, you should try the following;

  • Check that the water inlet hose is free from twists, kinks or blockages
  • Check that the water inlet valve is working properly
  • Check that the inlet tap is fully opened
  • Check the home’s stopcock is opened fully
  • Check the home’s water supply

Inspect The Water Inlet Hose

All of the water that enters the dishwasher comes in via the inlet hose. If this is twisted, kinked or blocked in some way, there will be insufficient water entering the dishwasher.

Straighten any twists or kinks and remove the hose to check the small screen in the end of the inlet hose after first turning the inlet tap to the off position. This screen is designed to trap any grit or other particles in the water and prevent them from damaging any internal components.

Take care as this screen is fairly delicate, it can be washed or replaced which is what we recommend. The screen is readily available and inexpensive.

Check The Water Inlet Tap

The water inlet tap can be found by tracing the inlet hose from the appliance to the water supply pipe. You will see a small tap which should be fully opened.

Make sure that the tap is fully opened before moving onto the next check.

Check The Water Inlet Valve

The water inlet valve operates on instructions from the control board and opens to allow water into the tub when needed. If the inlet valve becomes defective, it can fail to open or not open fully and prevent enough water from entering the appliance.

This is a part best investigated by a technician as it is difficult to access.

Check The Home’s Water Supply

kitchen sink

The only other possibility is that the water supply to your home or to your dishwasher at least has been turned off or restricted. Check that your home has mains water by turning on the cold tap in the kitchen.

You should also check that the stopcock, which is typically located under the sink, is fully opened.

Dishwasher’s Touchpad Not Working

person pressing a button on dishwasher control panel

If the touchpad on your Samsung dishwasher is not responding at all, you can try the following;

  • Clean the touchpad buttons using a cotton wool ball dipped in rubbing alcohol to remove any dirt, grime or other residue
  • Contact a technician

Cleaning The Touchpad

Over time, the touchpad can become dirty from dirt, dust, detergent residue or any other form of dirt transferred via your fingers. This can cause the buttons on your touchpad to become unresponsive.

You can clean the buttons using a cotton wool ball dipped in rubbing alcohol or white vinegar. Be sure to cover the whole area and remove as much grime as possible.

If this fails to get the touchpad working as it should, you’ll need to contact a technician to investigate and possibly replace the touchpad.

Dishwasher’s Buttons Not Working

The solution to this issue is exactly the same as the unresponsive touchpad, namely;

  • Clean the touchpad buttons using a cotton wool ball dipped in rubbing alcohol to remove any dirt, grime or other residue
  • Contact a technician

Cleaning The Buttons On The Dishwasher

If some or none of the buttons on your dishwasher respond, you can clean them in the same way as above by using rubbing alcohol or white vinegar.

Ensure you clean every button all over and if this doesn’t work, you’ll need to contact a technician to investigate and solve this issue for you.

Dishwasher Fails To Start

If your Samsung dishwasher fails to start you should;

  • Inspect the power cord for any fraying or damage
  • Check that the wall socket is working and switched on
  • Check that the circuit breaker is in the on position
  • Check that the water supply is turned on and working correctly
  • Reset the dishwasher (see below)
  • Contact a technician

Inspect The Power Cord

If your Samnsung dishwasher fails to start, the first thing to check is the power cord for signs of fraying or damage. If the power cord is damaged it will need to be replaced.

Check The Wall Socket

You should check that the wall socket is turned on and is working properly. You can do this by plugging something else into the socket and seeing if it works or not.

Check The Circuit Breaker

You should also check that the circuit breaker is in the on position, if it has tripped, try flicking it back on. If it trips again, contact a technician.

Check The Water Supply

In some cases, the dishwasher will not start if there is an issue with the water supply. This can be caused by the water inlet tap, inlet valve, inlet hose or the home’s water supply.

Reset The Dishwasher

Sometimes the problem is with the control board or an electrical glitch. If this is the case, you can often clear it by resetting the dishwasher.

This can be done by disconnecting the power supply for 10 to 15 minutes to clear any residual power. Once the time has passed, the appliance can be reconnected to the power supply and the fault has cleared.

If none of the above works, you’ll need to contact a technician to investigate further.

Dishwasher Won’t Turn Off

If your Samsung dishwasher won’t turn off after completing a wash cycle you should;

  • Check the door latch for any signs of damage or misalignment
  • Check to see if there’s still power going to the appliance, if there is, it typically indicates an electrical issue or a faulty control board
  • Contact a technician

Check The Door Latch

If your dishwasher won’t turn off after a wash cycle has completed, it could be because the door latch or door assembly has developed a fault.

You should check that the door and hinges are aligned properly as this could be the reason the appliance won’t turn off.

Check The Power Supply

If there is still power going to the dishwasher, it could indicate a problem with the control board or another electrical issue. We recommend disconnecting the power supply and contacting a technician if this is the case.

Dishwasher Not Drying Dishes

Dishes

If your Samsung dishwasher fails to dry the dishes, you should;

  • Ensure you selected a cycle that includes drying
  • Check the heating element
  • Contact a technician

Make Sure To Select A Cycle That Includes Drying

Not all wash cycles include a drying cycle on Samsung dishwashers. If you have selected a cycle that doesn’t include drying, your dishes will still be wet when the cycle finishes.

Ensure that you select a cycle that includes drying if you want your dishes dried at the end of the cycle.

Check The Heating Element Or Relay

If you’re sure that the cycle you selected did include drying, and your dishes are still wet, it could be due to a defective heating element or heating element relay.

This is a job best investigated by a technician unless you are confident in your technical abilities.

Dishwasher Turning On And Off

If your Samsung dishwasher keeps turning on and off you should;

  • Check that the power setting is stable
  • Check the thermostat is working correctly
  • Check the relay switch isn’t defective
  • Check the wiring and connections in the dishwasher
  • Contact a technician

Check The Power Setting

An unstable power setting could cause the dishwasher to keep turning on and off again. You can reset the power setting by unplugging the appliance from the wall socket for 10 to 15 minutes and then reconnecting the power.

Check The Thermostat

If the thermostat is malfunctioning, it could cause the dishwasher to keep turning on and off again.

We recommend getting a technician to check the thermostat and replace it if necessary.

Check The Relay Switch

If the relay switch is defective in any way, it could also be the cause of your dishwasher turning on and off again.

This is another part best checked by a technician.

Check The Wiring & Connectors

There are any number of wires and connectors on a dishwasher. Any one of which could have developed a fault and become defective.

This is another area best checked by a technician.

Heavy Light Flashing

If the heavy light is flashing on your Samsung dishwasher it can indicate a few different things. You will need to;

  • Check that the power cord is fitted correctly
  • Check the water inlet valve is working correctly
  • Remove and clean the drain filter

Check The Power Cord

If the power cord is loose or not fully pushed into the socket, it could cause the heavy light to flash on your Samsung dishwasher. You will need to check the power cord’s connection at the socket and at the appliance end.

Check The Water Inlet Valve

If the inlet valve is malfunctioning and not allowing enough water into the appliance, it could cause the heavy light to flash. You will need to get the inlet valve checked out professionally by a technician who will be able to investigate and replace it if necessary.

Clean The Drain Filter

A clogged drain filter can also be responsible for the heavy light flashing on a Samsung dishwasher. Consult your handbook on the location and instructions on how to remove and clean your dishwasher’s filter.

Does This Mean It’s Not Worth Buying Samsung Dishwashers?

The short answer is no, it doesn’t mean that you shouldn’t buy a Samsung dishwasher. Many of these issues are preventable by regularly maintaining and cleaning your dishwasher.

Added to which these faults and problems are not only found on Samsung dishwashers. All dishwashers suffer from the same or very similar faults.

Maintaining a regular cleaning and servicing schedule on your Samsung dishwasher should ensure many years of trouble free use.

SEE ALSO: 

Frequently Asked Questions

What is the most common problem with Samsung dishwashers?

One of the most commonly reported problems with Samsung dishwashers is issues with drainage. These can often be solved by removing and cleaning the drain filter.

What part often fails on a dishwasher?

The most commonly reported faults on dishwashers are drainage issues and a lack of water flow.

What is the average life of a Samsung dishwasher?

The average life of a Samsung dishwasher is around 10 years. This is in line with the majority of dishwasher brands with the exception of Miele which tend to last twice as long, but cost much more to purchase.

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