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Bosch Dishwasher Light Flashing

Bosch dishwashers are known for being efficient, quiet dishwashers so it can be frustrating when the display has flashing lights. What do the lights mean?

Flashing lights on your Bosch dishwasher indicate a potential issue with the door latch. When the lights are flashing, it’s likely that the door isn’t securely closed. To resolve this problem, simply ensure the dishwasher door is firmly shut until you hear a click, which signifies it’s properly locked. Once done, restart the dishwasher, and the lights should stop flashing, allowing your dishwasher to run smoothly.

Modern dishwasher in the kitchen

There are a variety of reasons why a Bosch dishwasher has flashing lights. Not all lights are bad but it can be confusing to understand what each one means. This article will help you understand your Bosch dishwasher better.

Some common reasons why a Bosch dishwasher will have flashing lights is because of a faulty drain pump or even the display panel itself.

Drain Pump

The drain pump forces water through the drain hose. When the pump is not working, the water cannot drain out. A light on the display panel will flash to signal the problem.

Unfortunately, drain pumps are not repairable. The only way to fix this problem is to replace the pump altogether. A qualified Bosch technician can easily and quickly replace the drain pump.

Display Panel

The display panel itself could be the problem. Try pressing some of the buttons on the display to see if they work.

If only a few of the buttons respond, the display panel is the culprit. You can clear any errors from the display panel by unplugging the dishwasher from its power source for at least 5 minutes.

Bosch Dishwasher Red Light Flashing

Woman thinking while behind the dishwasher

Red is not usually a light that makes us feel that everything is fine. If there is a red flashing light on your Bosch dishwasher, here are some reasons why.

If your Bosch dishwasher has a red light flashing, the dishwasher could be stuck on a wash cycle. This will happen if the door is opened mid-cycle or if the wash cycle was adjusted. Reset the dishwasher to clear out the error code.

The best way to clear out the error code causing a red flashing light is to reset the dishwasher. Our dishwashers are used on a regular basis so it is easy for them to become bogged down and simply need to be refreshed.

The Bosch dishwasher can be reset by pressing and holding the ‘Start’ button for 5 seconds. When the dishwasher is restarting, you will hear the dishwasher draining. This is normal and is part of resetting the dishwasher.

You can also do a hard reset of the dishwasher by turning off the circuit breaker supplying power to the dishwasher. Turn the breaker off for at least 5 minutes.

Dishwasher Door

If the dishwasher door is not closed or does not have a tight seal, the dishwasher will not work properly. Make sure the racks are correctly installed and that there are no dishes obstructing the door.

Another common reason for a red flashing light is broken or worn-out hinges or springs on the door. The door will also not shut securely if it is misaligned.

Bosch Dishwasher Light Flashing Tap

Modern dishwasher in the kitchen

Is the tap water setting on your Bosch dishwasher flashing? The reason why may be simpler than you think.

If your Bosch dishwasher light flashing tap, inspect the water supply hose and drain hose for any kinks or clogs. Make sure nothing is blocking the water pump and that the water pump cover is tightly closed. Clean the water supply hose filters.

The light will also flash if the dishwasher is not getting enough water. Make sure the water valve is open to allow enough water through.

If water is not draining from the dishwasher, make sure nothing is blocking the drain pump and that the drain hose is not pinched or clogged.

Water Pressure

Make sure the water valve is open and free of obstructions. You can do this by disconnecting the water hose from the water supply valve.

Place a bucked under the supply valve and turn the water on to make sure water comes out and that it comes out with plenty of pressure. There should be 10 liters per minute.

Door Seal

A tight sealing door is an answer to a variety of dishwasher issues, as you will see throughout this article. The tap light is no exception.

If the dishwasher door is not sealing tightly, water is getting onto the sensor. The first place to start troubleshooting this issue is by giving the dishwasher a good cleaning. Clean the filters inside the dishwasher and make sure the drain hose is not pinched.

Thoroughly clean the gaskets along the side of the door. The seal at the bottom inside of the door is a prime location for food and debris to get stuck. Anything inside the seal will prevent the door from having a water-tight seal.

It is also a good idea to inspect the screws along the inside of the door. Anything that will prevent a tight seal will let water leak out into the reservoir bin, tripping the sensor.

Flood Sensor

If the tap light continues flashing, water is continuing to drain where it should not be. When the light is accompanied by the error code E15, the issue could be a leak and the flood sensor has been activated. This can happen if one of the water hoses comes loose.

Underneath the dishwasher, there is a channel designed to pull water down underneath the dishwasher into the reservoir bin. A qualified Bosch technician can help figure out why water is leaking down underneath the dishwasher.

Bosch Dishwasher Light Flashing Won’t Start

Man putting plates in the dishwasher

Is the light on your Bosch dishwasher flashing and it won’t start? Before you go shopping for a new dishwasher, here are some reasons why this is happening.

If your Bosch dishwasher light flashing won’t start, there could be an issue with the power supply, or the dishwasher was not able to complete its cycle. There could also be a problem within the circuit board or something as simple as a faulty door switch.

The most common reason why the lights are flashing and the dishwasher will not start are because there is an issue with the dishwasher door.

Door Latch

The reason why the dishwasher door is the most common culprit is due to the door latch. They are made of plastic so it is easy for them to break. If the door is not able to be closed tightly and lock, the dishwasher will not start.

Faulty Door Sensor

Another possibility is a faulty door sensor. Bosch dishwashers use an infrared beam to sense when the door is open. If the door is opened while the dishwasher is running, a red light will flash, signaling for the dishwasher to turn off.

You can reset the sensor by restarting the dishwasher. Press and hold the power button for 5 seconds or leave the dishwasher unplugged for 5 minutes to reset the main control panel.

Bosch Dishwasher Check Water Blinking

Modern dishwasher in the kitchen

You have running water in your house. So then why is the check water light blinking on the dishwasher?

If your Bosch dishwasher check water light blinking, water may be unable to enter the dishwasher. Make sure the water inlet valve is open and is not blocked. If the float is stuck or defective, too much water will enter the dishwasher, causing the check water light to blink.

If you live in an area with hard water, the build-up of minerals within the dishwasher can prevent the dishwasher from filling and draining properly. Consider adding a water softener to the dishwasher or use the recommended rinse aide.

Error Code E09

Oftentimes, the Check Water blinking is accompanied by the E09 error code. This error code means there is an issue with the heating element.

The heating element not only heats the water but also speeds up the drying process. The heating element will fail if water has leaked into the heater, if the drainage filter is clogged, or if there is build-up from hard water.

Bosch Dishwasher Brush Light Blinking

Tired man sitting on the floor behind the dishwasher

Normally, the brush icon will light up to let you know the dishwasher is running the wash cycle. But if your dishwasher is not running and the brush light is blinking, something needs your attention.

If your Bosch dishwasher brush light is blinking, the drain system is clogged. Unplug the dishwasher and pull it forward. Tilt the dishwasher back 45 degrees to see if excess water drains off. If there is water, inspect the drain hose for clogs. Remove and clean the dishwasher filters.

More common is for the brush icon to flash if the AquaStop sensor has been activated. AquaStop is a safety feature built into all Bosch dishwashers to prevent them from leaking.

If water is detected in the catch basin underneath the dishwasher, the sensor will activate the AquaStop feature to stop water from entering the dishwasher and will drain what is in the hose.

If this is the case, a Bosch expert will need to diagnose the issue and determine what is causing the flood basin to fill with water.

Bosch Dishwasher Rinse Aid Blinking

Modern dishwasher in the kitchen

Rinse aid is beneficial to the final rinse cycle. It prevents water spots from forming and it helps the dishes dry faster. If the rinse aid bin is full or is not in use, why is the light blinking?

If your Bosch dishwasher rinse aid is blinking, make sure the correct amount of rinse aid was added. The rinse aid light will blink if the dispenser lid was not replaced properly or if the lid was not tightly closed.

Some newer dishwashing detergent tablets have rinse aid added to them. If these are what you use instead of the liquid rinse aid, here is what you can do when the rinse aid light is blinking.

Step 1: Put the dishwasher in Programming Mode by pressing the Glass Wash button and the Start button at the same time.

<stRONG>Step 2: Press the Glass Wash button to go through the various Programming Modes. Press the button until you get to R, for Rinse aid.</st

Step 3: Press the Quick button to cycle the setting to zero.

Step 4: Press the Start button. The light will now turn off.

Bosch Dishwasher Active Light Flashing

Man fixing the dishwasher

Is the Active light flashing even though the dishwasher is not in use? Here is the reason why.

If your Bosch dishwasher active light is flashing, the float is stuck. The float prevents water from coming into the dishwasher when the door is opened. Opening the dishwasher door mid-cycle will cause the float to become stuck in the open position.

The float can be seen inside the dishwasher. It is a small plastic piece that moves up and down. When you gently move the float up and down, you should hear a clicking sound to let you know the relay switch is good. If there is no sound, the float needs to be replaced.

You can access the float relay switch by removing the bottom panel off the front of the dishwasher. Consult your User’s Manual to identify the correct type of float switch for your model of Bosch dishwasher.

Salt Setting

If your Bosch dishwasher has a salt indicator, a flashing light will let you know there is not enough salt. Salt is crucial to keeping limescale down. If limescale continues to build within the machine, the dishwasher will eventually be ruined.

Bosch Dishwasher Blinking Floor Light

Modern dishwasher in the kitchen

Bosh dishwashers are so quiet and efficient that they will have a light shine on the kitchen floor to let you know when the dishwasher is in use. What does it mean when this light is blinking?

If your Bosch dishwasher has a blinking floor light, this means there is an issue with the rinse aide cycle. Make sure the rinse aid has been added and also that there is nothing preventing the rinse aid dispenser from opening.

If there was a recent power outage or surge, the flashing light could be the result of the surge in electricity and the dishwasher needs to be reset.

Unplug the dishwasher or turn off the circuit breaker supplying power to the dishwasher. Let the dishwasher rest for at least 5 minutes to drain the remaining electricity and clear out the error code.

Bosch Dishwasher Auto Wash Light Blinking

Man putting plates in the dishwasher

Bosh dishwashers make washing dishes so easy that you don’t even have to select a specific wash setting. The dishwasher will automatically sense the soil level and adjust accordingly.

If your Bosch dishwasher auto wash is light blinking, restart the dishwasher by pressing and holding the ‘Start’ button for 5 seconds. Make sure the door is locked. If the door does not lock, the dishwasher will not recognize the door is shut.

The purpose of the Auto setting is for the dishwasher to detect the soil amount on the dishes. The water temperature and pressure will be adjusted automatically. If the auto sensor is not working, the light will blink.

When the dishwasher is stuck on the auto wash cycle, reset the dishwasher to clear the error. The method of resetting the dishwasher may vary from each model but the core method is the same.

Step 1: Open the dishwasher door to access the buttons.

Step 2: Press and hold the ‘Start/Reset’ button for 5 seconds or until all of the indicator lights turn off. If your model of Bosch dishwasher has a clock display, hold the ‘Start/Reset’ button until the clock reads 0.

Step 3: Close the dishwasher door and allow the dishwasher time to reset.

Bosch Dishwasher Sanitize Light Blinking

Woman putting plates in the dishwasher

Is the sanitize light blinking on the dishwasher? Here is the reason why.

If your Bosch dishwasher sanitize light is blinking, the water temperature needs to be adjusted. For dishes to be sanitized, the water temperature must be at a minimum of 120 F or 49 C. Run water in the kitchen sink for 30 seconds to determine if the water is indeed not heating.

Another reason why the sanitize light is blinking could be if the sanitize cycle was interrupted due to the door being opened or if there was a power outage or surge. Reset the dishwasher to clear out the error.

Bosch Dishwasher Blinking Display

Man fixing the dishwasher

Bosh dishwashers come with a self-diagnostic setting built into the dishwasher. Any time an error is detected, the display will blink next to specific icons or will blink an error code.

You can put the dishwasher in diagnostic mode by doing the following.

Step 1: simultaneously press and hold both the ‘Power Scrub Plus’ button and the Regular Wash buttons.

Step 2: While still pressing the two buttons, turn the dishwasher on and then release the buttons. Each button on the display panel should light up.

Step 3: Press both the ‘Power Scrub Plus’ button and the ‘Regular Wash’ button to start a test cycle.

Step 4: The test cycle will run and will display an error code if a fault has been detected. If there is more than one error code, the first code displayed is the error that takes priority.

If your Bosch dishwasher has a blinking display, make sure the door is tightly sealed and locked. Make sure the Rinse Aid compartment is full and the lid is tightly closed. Restart the dishwasher by unplugging it for 5 minutes.

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