So what does Bosch dishwasher error code E04 Indicates? Usually, this error means that the water flow sensor is not working correctly, or the water sprayer if faulty. It can be due to various reasons such as clogging or water is unable to pass through the sprinkler holes or the water is hard, and hence dishwasher is not able to spray it properly.
How To Fix Bosch dishwasher error code E04
In the case of E04, Error means that water flow sensors or water sprayers are not working correctly. This disrupts the water flow. This is not a big problem, and if you are good with tools, then you can also try to fix it yourself.
To fix Bosch dishwasher error code E04, You need to first identify it due to system malfunctioning, or there is some damage in the device. As
First, you have to check whether the malfunction is actually occurring, or it is just a failure in the system. As always, first, try to reset the bosch dishwasher to remove the E04 Error.
How to reset E04 Error?
- Switch off the Power supply.
- Disconnect the bosch dishwasher main.
- Now, wait for 15-20 minutes.
- Start the dishwasher again.
In most of the cases, the error code E04 will be gone. This means that the system only malfunctioned, and it displayed Error. Once the dishwasher is restarted, The error will go away. If you still face the same problem, then you need to do advanced troubleshooting. We recommend taking the help of professionals before doing this step.
Try Cleaning the Water Sprinkler
Cleaning the water sprinkler may remove any blockage and will help in solving the issue. Here are the steps that you need to follow.
- Carefully remove the water spray arm from the seat.
- Take it out and put it under running water.
- Rinse it till you don’t see any dust particles.
- You can also clean the nozzles. We recommend using a toothpick.
Tip: There are many special kinds of salt that you can buy which is very good for the dishwasher. This salt can help in reducing the hardness of water and prevents the formation of limestone deposits on the equipment.
If even after cleaning sprayers, the error is not fixed, then you have to replace the water flow sensor. Please note that you will need the help of an expert handyman in doing this step. The Flow sensor helps in controlling the amount of water that flows through the nozzle. Many a time, it becomes faulty or damaged and hence will not be able to control the water flow properly. Many Bosch Dishwasher has a flow sensor, and many have a pressure switch. The flow sensor will send a stop signal to the control panel and will ask the dishwasher to stop the water intake when it is full.
How to remove and replace the water flow sensor
In critical cases, you need to replace the faulty water sensor. We don’t recommend repairing it as it may cost you more.
- Turn off the power to your dishwasher and shut off the water supply valve.
- Remove the screws to release the lower access panel.
- Pull out the sound dampening pad disconnect the water supply line from the inlet valve.
- Remove the screw to release the junction box cover.
- Note the location of the wires, then untwist the wire nuts to disconnect the wire.
- Use a flathead screwdriver to help remove the strain relief nut and detach the strain relief from the junction box.
- Next, disconnect the drain hose from the sink drain or garbage disposer and feed it through the cabinet.
- Open the dishwasher door and remove the mounting bracket screws to move the dishwasher.
- Remove the screws securing the bottom access plate and pull the plate free, detach The water flow sensor.
- Now replace the old water sensor with the new one.
Hopefully, now Bosch dishwasher error code E04 will not happen again. To avoid these kinds of errors, you need to clean the dishwasher regularly. It should be done at least once a month. Also, replace filters now and then. Thanks for reading this article. Please comment, and we will be happy to answer them.