When your Amana dishwasher suddenly stops and flashes error code FA, it can be confusing and frustrating. The good news is that this code is usually not a “your dishwasher is dead” situation. Instead, it points to a water quality issue, specifically what the machine sees as cloudy or dirty water.
In this guide, we’ll break down what the FA code means in simple terms, why it happens, how you can safely troubleshoot it yourself, and what you can do to prevent it from coming back. Everything is written in easy, everyday American English so you don’t need to be an appliance tech to understand it.
What Does Amana Error Code FA Actually Mean?
On Amana dishwashers, Error Code FA is linked to the optical water indicator—a small sensor that “looks” at the water and checks how clear or cloudy it is. When the sensor detects that the water is too cloudy (high turbidity), it triggers the FA code.
In plain language, your dishwasher is saying:
“The water I’m using is too dirty or cloudy to clean dishes properly.”
This doesn’t always mean your tap water is bad. It usually means the water inside the dishwasher during the cycle has too many particles, food bits, or soap residue floating around.
You might notice:
- Dishes coming out still dirty or with a film on them
- Cloudy glasses or white spots
- The cycle stopping early with the FA error on the display
The FA code is the machine’s way of protecting your wash quality and letting you know something isn’t right with the washing conditions.
What Is Water Turbidity and Why Does It Matter?
Water turbidity is just a technical word for how cloudy the water is. If the water looks hazy or milky instead of clear, it has high turbidity. The optical water indicator in your Amana dishwasher constantly checks that.
When the turbidity stays too high, a few things can happen:
- The dishwasher may extend the cycle to try to clean better
- It may drain and refill the tub multiple times
- If the problem continues, it will stop the cycle and show Error FA
Clearer water helps:
- Rinse away food more effectively
- Let detergent work properly
- Prevent streaks, residue, and bad smells
So even though FA is “just” a sensor code, it’s directly connected to how clean your dishes get.
Common Causes of Amana Dishwasher Error Code FA
There isn’t just one cause of the FA error. Instead, it’s usually a combination of how the dishwasher is loaded, what detergent you use, and the condition of your water and filters.
Here are some of the most common reasons:
- Too much food soil in the water
Heavy food residue left on dishes can break loose and swirl around, making the water very cloudy. - Wrong or low-quality detergent
Using cheap, expired, or wrong-type detergent can cause poor cleaning and extra film in the water. - Overloading the dishwasher
When you pack dishes too tightly, water can’t circulate correctly, and food particles stay trapped. - Dirty filters or sump area
If the filters at the bottom of the dishwasher are clogged, dirty water doesn’t drain and recirculates. - Hard water or mineral buildup
Hard water can create cloudy water and film on surfaces, confusing the optical sensor. - Issue with the optical water indicator itself
In some cases, the sensor window gets dirty or the sensor fails, so it “thinks” the water is always cloudy.
Usually, a few simple checks and clean-ups can clear the FA code without any parts replacement.
DIY Steps to Fix Amana Dishwasher Error FA
Before you start, unplug the dishwasher or switch off power at the breaker for safety whenever you’re working inside or around electrical components. For basic cleaning and loading changes, you can keep it plugged in, but always use common sense and follow your owner’s manual.
1. Reset the Dishwasher and See If FA Reappears
Sometimes the FA code appears once due to a temporary water condition.
- Turn the dishwasher off, wait about a minute, then turn it back on.
- Try running a short rinse or quick wash cycle with no dishes to see if the code returns.
If FA doesn’t show up again, it may have been a one-time issue. If it comes back, move on to deeper checks.
2. Check and Clean the Filters
Dirty filters are one of the biggest causes of cloudy water inside the tub.
- Open the door and pull out the lower rack.
- Locate the filter assembly at the bottom (usually a round or oval piece).
- Twist and lift it out, following your user manual.
- Rinse the filter parts under warm running water and gently scrub with a soft brush to remove grease and food particles.
- Check the sump area (the opening under the filter) for any leftover food, glass, or debris. Remove anything you see.
- Reinstall the filter securely.
Clean filters help water drain better and keep food bits from swirling around and triggering FA.
3. Adjust How You Load the Dishwasher
Overloading can trap food and keep water from circulating properly.
Try these simple loading rules:
- Keep large plates and pans on the bottom rack, not blocking the spray arms.
- Place cups and glasses on the top rack, tilted slightly so water can drain.
- Don’t stack bowls inside each other—water needs space to get in and out.
- Make sure spray arms can spin freely and are not hitting tall dishes.
Run a cycle with a normal load after making these changes and see if the FA error still appears.
4. Use the Right Detergent and the Right Amount
Detergent plays a big role in water clarity.
- Use a high-quality dishwasher detergent recommended for modern machines.
- Avoid mixing different types of detergents (for example, powder and pods together).
- Don’t overfill the detergent cup—too much soap can create excess suds and film.
If you’ve been using the same brand for a long time and you see cloudy water or hazy dishes, it might be time to switch brands and test a different product.
5. Run a Dishwasher Cleaner or Empty Hot Cycle
Over time, grease, food particles, and minerals build up on the tub walls, spray arms, and around the sensor.
- Buy a dishwasher cleaner product designed for removing grease and limescale.
- Run a hot cleaning cycle with no dishes, following the cleaner instructions.
If you don’t have a cleaner, you can run an empty cycle with hot water and a dishwasher-safe cleaner recommended by the manufacturer. Avoid random home remedies unless your manual approves them.
6. Consider Your Home’s Water Quality
If you live in an area with hard water, the dishwasher may struggle more with turbidity.
- Check for white spots on glasses and a chalky film inside the dishwasher.
- If you see them, consider using a rinse aid regularly.
- You might also use a product made to reduce mineral buildup or talk to a local plumber about water softening options.
Improving water quality can reduce the chance of FA returning and improve overall cleaning at the same time.
When to Suspect a Sensor or Internal Problem
If you’ve:
- Cleaned the filters and sump
- Adjusted the load
- Used proper detergent
- Run a cleaning cycle
- Considered hard water
…and the FA code still returns regularly, the issue might be with the optical water indicator itself or another internal component.
Signs it may be more than just water quality:
- FA appears early in every single cycle
- The dishwasher stops even when you run it empty
- You don’t see heavy soil, but the machine still “thinks” the water is cloudy
At that point, it’s best to have a qualified appliance technician inspect the sensor, wiring, and control board. Internal repairs typically require tools, technical knowledge, and may involve taking apart panels or working near electrical components.
Preventive Tips to Avoid Error FA in the Future
Once you’ve cleared the FA error, a few simple habits can help keep it from coming back:
- Scrape, don’t rinse, dishes
You don’t have to pre-wash everything, but scrape off large food pieces so they don’t end up in the filters. - Clean the filters regularly
Make it a routine to check and rinse the filters every few weeks or sooner if you use the dishwasher heavily. - Use rinse aid consistently
Rinse aid helps water sheet off dishes and can reduce film, making water look clearer to the sensor. - Avoid overloading
If you have to “jam” dishes in to make them fit, it’s too full. Better to run two smaller loads than one overloaded one. - Run a maintenance wash
Once a month, run a hot cycle with a dishwasher cleaner to keep the tub, spray arms, and sensor cleaner.
These simple steps go a long way toward keeping your Amana dishwasher running smoothly and keeping turbidity low.
FAQs About Amana FA Error and Cloudy Water
Is the FA error dangerous for the dishwasher?
No, FA itself is more of a warning than a serious damage code. It’s telling you the water isn’t clean enough for good washing results. However, ignoring it long-term can lead to poor cleaning and more buildup inside the machine.
Can I ignore the FA code and keep using the dishwasher?
If the dishwasher won’t start a cycle and keeps showing FA, you can’t just ignore it. Even if it does run, cloudy water means your dishes probably won’t get properly cleaned, and you may deal with smells and residue.
Does FA mean my tap water is bad?
Not necessarily. The water can become cloudy inside the dishwasher because of food particles, grease, and detergent, even if your tap water is okay. But if you live in a hard-water area, minerals can contribute to the problem.
Do I always need a technician for FA?
No. Many FA issues are solved at home by cleaning filters, adjusting the load, improving detergent use, and running a cleaning cycle. You usually only need a technician if the error keeps coming back after you’ve tried these steps.
Final Thoughts
Amana Dishwasher Error Code FA is your machine’s way of saying, “The water I’m using isn’t clean enough for a proper wash.” In most cases, it’s related to water turbidity, dirty filters, overloading, or detergent issues—not an instant sign that your dishwasher is finished.
By understanding what FA means, taking time to clean the filters and tub, using good detergent, and loading your dishes correctly, you can often fix the problem yourself and keep your Amana dishwasher working efficiently for years to come.