How to fix the E14 error on a Bosch dishwasher

Quite often, the E14 error code on a Bosch dishwasher alternates with the E18 error code, preventing the dishwasher from working. This problem is so common that we decided to explore it in detail, dedicating an entire article to it. What causes the E14 error code, what malfunctions can cause it, what tools and components are needed to repair it, and, finally, how can you do the repair yourself? Let's discuss these issues in detail.

What breakdown is to blame?

Many modern Bosch dishwashers are equipped with a continuous-flow water heater. The machine draws cold water and then circulates it through the heating element until it reaches the desired temperature. But how does the machine's electronics know how much water to draw? An automatic washing machine uses a pressure switch, which is connected to the control module. Bosch dishwashers have a similar system, but instead of a pressure switch, they use a water flow sensor. If it fails, the self-diagnosis system displays an E14 error.

This happens in approximately 65% ​​of cases, so technicians check this sensor first. Second, they check the entire system for leaks. If there is a small water leak and the display shows error E14, it means that a crack has formed somewhere. In rarer cases, this error is caused by the intake valve or control module.

The electrical system that powers the above-mentioned components may also be faulty, so the third step is to check the circuits that connect the control module to the water flow sensor and the inlet valve.

What will be required to fix it?

There's no need to gather any parts or tools in advance. At least until you've accurately determined what's causing the E14 error. In this section, we'll provide a list of what you might need so you're mentally prepared for the costs involved and can roughly estimate which stores you'll need to visit to get everything you need. The final list will depend on the nature of the problem, the dishwasher model, and the troubleshooting method you choose.

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

The list isn't long, but you should ensure that the parts you purchase are compatible with your Bosch dishwasher model. It's best to order dishwasher parts directly from the manufacturer, through the official website. This way, you'll avoid paying extra to resellers and be sure to receive an original, compatible, and high-quality part.

Troubleshooting

The water flow sensor, like the inlet valve, is located in the dishwasher's tray. Accessing them requires disassembling the machine, so to clear our conscience, we'll perform a procedure that may help fix the E14 error. What should we do?

1. We disconnect the machine from the utilities and move it to the middle of the room.
2. We place rags under the body to prevent water from spilling from the tray onto the floor, if there is any.
3. Tilt the machine body first to the right, then to the left, and then back. Repeat this several times.
4. We put the machine back in place, connect it and try to start it.

Why might these tilts cause the E14 error to disappear? It's simple: this simple method allows you to equalize the pressure in the system, and if there are no other problems, the machine will function properly. If the error reappears on the display, you should admit the "trick failed" and figure out how to fix the problem. To check the components in question, you need to disassemble the Bosch dishwasher.

1. We prepare the machine for disassembly by moving it to a convenient location.
2. We remove the decorative door panel and unscrew the front plate located under the door.
3. We remove the closers from their mountings, which allow the door to open and close smoothly. After this, the door must be kept in the open position.
4. On the outside of the tray, in the corners, there are screws that need to be unscrewed.
5. We roll out the bottom large basket from the dishwasher.
6. We remove the lower rocker arm, filter, and mesh.
7. We unscrew the screws that were under the mesh.
8. Place a few rags against the back of the dishwasher and then rest the machine on them to gain better access to the tray and the parts inside.
9. Next, you need to disconnect everything that gets in the way from the pan: connectors with wires, the inlet hose, the pump, etc.

When disassembling the dishwasher tray, take photos of each stage of the work to make it easier to put everything back together later.

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

The rest is a matter of technique. We measure the resistance of the inlet valve and water flow sensor with a multimeter and find the weak link. If the parts are intact, we check the wiring; one of the supply wires may be frayed. Replacing the inlet valve and water flow sensor is done without tools. We disconnect the connectors with the wires, unscrew the parts themselves, and install new ones in their place—nothing tricky.

It happens that the E14 error alternates with Bosch dishwasher error E25In this case, you should also check the drain pump pipe and the pump itself for blockages.

In conclusion, fixing the E14 error on a modern Bosch dishwasher may require the intervention of a qualified technician. Disassembling an expensive dishwasher is still best left to professionals, but with a little effort, you can do it yourself. You'll save between $40 and $110. That's how much the technician will charge for the repair, not including the cost of parts. Good luck!

   

2 reader comments

1. July 7, 2020 at 6:47 AM

   Igor:

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

   Answer
2. March 23, 2021 at 6:11 AM

   Mykola:

   Thank you

   Answer