Blinking indicator of the faucet on the control panel of the dishwasher Bosch This is a direct signal of the protection system. AquaStock. or the occurrence of a critical leak in the pallet. Unlike static lighting, flashing often indicates an active water pumping process or an electronic supply valve problem requiring immediate user intervention. Ignoring this symptom can lead to flooding of the kitchen, as the system blocks further water intake, but may not stop the circulation of fluid residues inside the enclosure.
The electronic control module records the change in the water level in the pallet or the absence of a flow through the hose, which causes the intermittent glow of the icon. In some series models Maxx or Silence Plus This signal is combined with the output of the error code E15 or E09 on the display, if it is provided by the design. Understanding the exact cause, whether it’s a hose breakdown or a sensor malfunction, allows you to choose the right repair strategy without calling a wizard.
The first thing to do when detecting a flashing tap is to completely shut down the water supply valve and disconnect the device from the power grid. Further operation in this mode is strictly prohibited, since the risk of short circuit or repeated break of water remains extremely high even when the program is turned off. Only after the initial diagnosis can determine whether replacement of nodes or enough to eliminate the blockage.
Decoding of signals of the crane indicator
The behavior of the crane indicator on the control panel can vary depending on the specific model and the nature of the malfunction. Static combustion Usually indicates that the machine is unable to draw water from the plumbing because of a closed tap or lack of pressure. At the same time, flashing indicates more serious problems associated with leak control or intake valve operation.
Diagnostics system Bosch It uses different blinking frequencies to encode errors, although visually it often looks like a uniform blink. If the tap is flashing quickly and continuously, it is most often a sign of activation of the pallet protection. A more rare blinking may indicate problems with the valve electronics or flow sensor.
- 💧 Fast flashing: Activated protection against leaks, water found in the pallet of the device.
- ⏱️ Slow flashing: Exceeded time of water collection, possible clogging of the filter or low pressure in the network.
- 🔌 Blinking along with other indicators: Complex electronics error or program reset due to voltage surge.
It is important to distinguish between these signals, as the methods of eliminating them are radically different. If in the first case we are talking about physical water in the housing, in the second case we are talking about the hydraulic parameters of the system.
⚠️ Attention: If the tap is blinking and the car is buzzing and trying to pump water, don’t try to run a new washing program. This can lead to the pump burning or re-flooding.
Technical details of the work of AquaStop
The AquaStop system in Bosch dishwashers consists of a double hose, an electromagnetic valve and a float sensor in a pallet. When the external hose is depressurized, water enters the internal channel, the pressure in which the valve closes mechanically. If the water gets into the pallet of the machine, a float pops up, which opens the contacts and gives a signal to the module to pump out and block.
Diagnostics of the AquaStop and pallet system
The most common reason for the fact that on the dishwasher Bosch flashing tap, is the ingress of water into the protective pallet, located in the lower part of the body. This place is set up float-off, which, when surfacing, opens the supply chain of the intake valve and activates the drain pump in continuous mode. This condition is often referred to as "accident mode."
To test this hypothesis, it is necessary to remove the lower decorative panel of the device (if any) or gently tilt the car forward, underlaying the rag. If a small amount of water leaks from under the body and the blinking stops after the power is turned on, then the problem lies in the activation of the pallet protection. However, this is only a temporary solution, as you need to find the source of the leak.
The main places where a leak may occur, leading to the operation of the sensor:
- 🔩 Sealing cuffs: Wear of rubber bands on the circulation pump or connections of pipes.
- 🧼 Excess foam: Using a conventional detergent instead of tablets or dishwasher gel causes foaming, and the foam is poured over the edge of the wash into the pallet.
- 🌊 Plum clog: The water does not have time to leave and overflows over the edge of the inner chamber.
If after removing water from the pallet and drying the machine, the error returns immediately at start-up, then the leak is active and requires replacement of seals or pipes. Visual inspection of the insides of the machine with the side walls removed will help to localize the drop.
☑️ Diagnosis of leakage
Problems with the intake valve and the filler hose
If the pallet is dry and the tap indicator continues to blink, the problem may lie in the water intake system. Intake valve Electromagnetic is responsible for opening the water supply at the start of the program. If its coil is burned or the rod is jammed, the control module does not receive an opening confirmation and the water dial timer expires, causing an emergency blink.
It is also worth checking the filler hose system. AquaStop. At its end is a block with a solenoid, which, when applied, should characteristically click and buzz, opening the way to water. The absence of sound or vibration when starting the program indicates a malfunction of the electrical part of the valve or the absence of a signal from the control board.
| Symptoms. | Probable cause | Method of verification |
|---|---|---|
| The faucet blinks, no water. | Intake valve malfunctioned | Call the coil with a multimeter |
| The tap blinks, the pump buzzes | Water in the pallet (AquaStop) | Remove the bottom cover and check the pallet |
| The tap's blinking, weak pressure. | Filter mesh clogged. | Unwrapped the hose and inspected the net. |
| The faucet blinks, E09 error | Problem with flow sensor | Check Venturi's contacts and phone. |
Pollution is also a frequent cause. filter-grid at the entrance to the car or in the water supply tap. Small particles of rust or sand block the flow, the pressure drops, and the machine goes into error on the time of recruitment. Cleaning the mesh under a strong water pressure often solves the problem without replacing parts.
To clean the intake valve mesh, use an old toothbrush and soak it in a citric acid solution if the plaque is lime.
Analysis of water-related error codes
Modern dishwashers Bosch They are equipped with a self-diagnostic system that displays error codes on the display or encodes them by flashing indicators. Understanding these codes makes it much easier to find a fault. For example, code E15 or E14 In older models) almost always means activation of leak protection.
Code. E09 indicates a malfunction of the water flow sensor (aqua sensor). This element controls the volume of fluid passing and if it is contaminated or faulty, the machine does not see water, although it can physically enter. In such cases, a replacement of the sensor or its thorough washing is required.
Other common water-related codes are:
- 💧 E15: Water in the pallet, AquaStop float went off.
- 🚰 E09: Failure of the water flow sensor or lack of flow.
- 🔥 E24: A problem with a drain hose (clutched or clogged), which indirectly affects the water balance.
To reset an error after troubleshooting a fault, it is often not enough to simply turn off the machine. Hold the on button or a special combination (e.g., the program select button) for 3-5 seconds before the sound signal or the reset indicator flashes.
⚠️ Attention: Don’t ignore repeated error codes. Constantly resetting the error without eliminating the cause will lead to the failure of an expensive control module due to the oxidation of the contacts.
Resetting an error and restarting the system
After carrying out repairs or eliminating leakage, it is necessary to properly restart the dishwasher controller. Simply turning off the button may not clear the nonvolatile memory of the module where the error code is stored. There are several ways to complete a hard reset.
The most reliable method is to completely de-energize the device. It is necessary to pull the plug from the socket or turn off the machine in the shield for 15-20 minutes. During this time, the capacitors on the control board will be discharged, and the memory will be reset to the factory settings. After power is turned on, the faucet indicator should stop flashing if the cause is eliminated.
Alternative software reset for some models Bosch Serie 4 and 6:
1. Press and hold the Start button for 3 seconds.2. At the same time, press the program selection button (usually "VarioSpeed" or "Intensive").
3. Hold for 3-5 seconds until the beep.
If after all the manipulations the crane continues to blink, and water does not enter the pallet, there is a high probability of malfunction of the electronic control module itself. Microcracks in soldering or burnt tracks can give false signals about leakage. In this case, a professional diagnosis with an opening of the body is required.
The main conclusion: Blinking the crane is a protective reaction. Until the cause is found and fixed (water in the pallet or lack of kit), the machine will not start a normal wash.
Prevention and maintenance of the water supply system
To avoid the recurrence of flashing faucets and water-related error codes, it is important to have regular preventive maintenance. The quality of tap water is often the main enemy of household appliances, causing the formation of scale and blockages.
Every six months, it is recommended to check the condition of the filler hose for microcracks and bloating, especially if the hose is more than 5 years old. Rubber blubbers over time and loses elasticity, which increases the risk of rupture under pressure from hydraulic shocks.
Main preventive measures:
- 🧹 Cleaning the filters: Wash the intake valve mesh and filters at the bottom of the wash from food and sand residues.
- 🧴 The right chemistry: Use only specialized dishwashers to avoid excessive foaming.
- 💊 Water softening: Add regenerative salt to the softener compartment regularly if the water hardness is high.
It is also worth paying attention to the tightness of the compounds. If you notice even minimal under-boosting from under the hose or around the hatch cuff, immediately tighten the clamps or replace the seal. A small puddle, invisible under the car, sooner or later will trigger the AquaStop.
What to do if the faucet flashes, but there is no water in the pallet?
If the pallet is dry, check the intake valve and the pressure in the plumbing. Perhaps the tap on the pipe is closed, the hose is bent or the valve coil is burned. Also check the filter mesh at the entrance.
Can I use the dishwasher if the faucet is blinking?
No, exploitation is impossible. The machine blocks the launch of the washing program in emergency mode. Attempts to bypass the protection can lead to flooding of the room.
How to Reset E15 Error in Bosch's Dishwasher?
It is necessary to eliminate the leak, dry the pallet and completely de-energize the device for 15-20 minutes. Program reset without eliminating the physical cause will not help.
Why is the dishwasher buzzing and flashing faucet?
The hum in combination with the blinking of the tap indicates the operation of the drain pump in the pumping mode with activated protection AquaStop. That means the sensor in the pallet picked up the water.
How much does it cost to repair a control module?
The cost depends on the model, but replacing or repairing the control module is usually one of the most expensive procedures, comparable to 30-40% of the cost of a new machine.