How to fix error E14 in a Bosch dishwasher

Quite often, error E14 in a Bosch dishwasher alternates with error E18, preventing the dishwasher from working. This problem is so common that we decided to analyze it in as much detail as possible, dedicating an entire article to it. What are the causes of error E14, what breakdowns cause it, what tools and components are needed to carry out the repair, and how, finally, to do this repair yourself? Let's talk about this in detail.

What failure is to blame?

Many modern Bosch dishwashers have an instantaneous water heater installed inside them. The machine draws cold water and then circulates it in a small circle through the heating element until it heats up to the desired temperature. But the question arises: how does the machine’s electronic brain know how much water to fill? An automatic washing machine has a pressure switch, which is connected to the control module. The Bosch dishwasher has a similar system, only instead of a pressure switch there is a water flow sensor, and if it breaks, the self-diagnosis system displays error E14.

This happens in about 65% of cases, so technicians check this sensor first. Secondly, the tightness of the entire system is checked. If there is a small water leak and error E14 flashes on the display, it means a crack has formed somewhere. In more rare cases, this error is caused by the intake valve or control module.

The electrics supplying the above-mentioned elements may also be faulty, so the third thing you should check is the circuits connecting the control module to the water flow sensor and the inlet valve.

What will it take to fix it?

There is no need to prepare any components or tools in advance. At least until you determine exactly what caused the E14 error. In this paragraph, we will provide a list of what you may need so that you are mentally prepared for the costs that you will have to incur and roughly estimate which stores you will go to to take everything you need. The final list will depend on the nature of the breakdown, the dishwasher model and the method of troubleshooting you choose.

1. Screwdrivers: flat, Phillips, hex.
2. Pliers.
3. New original water flow sensor.
4. New original intake valve.
5. Multimeter.
6. Sealant and tape.

The list is not long at all, however, you need to make sure that the parts you purchase are compatible with your Bosch dishwasher model. It is better to order dishwasher components directly from the manufacturer, through the official website. This way you will not pay extra to resellers and will definitely receive an original, suitable and high-quality part.

Troubleshooting

The water flow sensor, as well as the inlet valve, are located in the dishwasher tray. To get to them, you need to disassemble the machine, so to clear your conscience, we will perform a manipulation that can help correct error E14. What should be done?

1. We disconnect the machine from the communications and take it out to the middle of the room.
2. We place rags under the body so that water, if there is any, does not pour out of the pan onto the floor.
3. We tilt the body of the machine first to the right, then to the left, and then back. You need to do this several times.
4. We put the machine in place, connect it and try to start it.

Why might error E14 disappear due to these tilts? It’s simple, this simple method allows you to equalize the pressure in the system, and if other than this there are no problems, the machine will work as it should. If the error appears on the display again, you should admit that “the focus failed” and you need to think about how to correct the situation. To check the parts that interest us, we should disassemble the Bosch dishwasher.

1. We prepare the machine for disassembly by moving it to a convenient place.
2. Remove the decorative door panel and unscrew the front plate located under the door.
3. We remove the closers from the fasteners, which allow the door to open and close smoothly. After this, the door must be kept open.
4. On the outside of the pallet in the corners there are screws that need to be unscrewed.
5. Roll out the large lower basket from the dishwasher.
6. We remove the lower rocker, filter, mesh.
7. We unscrew the screws that were under the mesh.
8. We throw a few rags at the back wall of the dishwasher body, and then place the machine on them to get better access to the tray and the parts in it.
9. Next, you need to disconnect everything that gets in the way from the pan: chips with wires, inlet hose, pump, etc.

When disassembling the dishwasher tray, take photographs of each stage of work so that it will be easier to put everything back later.

10. Now you can carefully pull the tray towards you and unhook it from the main body, gaining full access to all the necessary parts.

The rest is a matter of technique. Using a multimeter, we measure the resistance of the inlet valve and the water flow sensor and find the weak link. If the parts are in good condition, then check the wiring; perhaps one of the supply wires is frayed.The inlet valve and water flow sensor can be replaced without the use of tools. We disconnect the chips with wires, unscrew the parts themselves and put new ones in their place, nothing tricky.

It happens that error E14 alternates with error E25 in Bosch dishwasher. In this case, you also need to additionally check the drainage pump pipe and the pump itself for blockages.

In conclusion, we note that correcting error E14 on a modern Bosch dishwasher may require the intervention of a qualified specialist. Disassembling an expensive dishwasher is still the job of professionals, but if you try, you can do everything yourself. Save between $40 and $110. This is exactly how much the repairman will charge you for repairs without taking into account the cost of parts. Good luck!

2 reader comments

1. 07/07/2020 at 06:47

   Igor:

   Hello, you did not indicate the resistance values ​​of the inlet valve and water flow sensor.

   Answer
2. 03/23/2021 at 06:11

   Mikola:

   Thank you

   Answer