Error E1 in Hans dishwasher

The code table for the Hansa dishwasher self-diagnosis system starts with code E1. If you had to deal with this code, keep in mind that finding a breakdown can be very difficult. First, we will discuss the decoding of the E1 error in the Hansa dishwasher, and only then we will gradually move on to options for eliminating it.

What failures gave rise to the code?

Often, the Hans dishwasher issues code E1 not as a result of a breakdown, but under the influence of external factors. What does this mean? The fact is that the inlet valve of the dishwasher (as well as the washing machine), and most importantly the flow sensor, is set to a certain water pressure. In our case, this is from 2.5 to 6 atmospheres. Typically, the pressure in the water supply of an apartment building is in this range, and the machine reacts to it normally. But in some cases, the water pressure goes beyond these limits and begins to reach 7-8 atmospheres.

With such high pressure, the valve does not function properly, allowing more water to pass through than it should. The flow sensor also begins to record incorrect readings, stops the dishwasher and displays error E1. In principle, in such a situation, you can wait a couple of days until the pressure in the water supply normalizes, and then continue to operate the machine, but then where is the guarantee that this will not happen again?

If you often experience pressure surges in your water supply, experts recommend installing a pressure reducing valve with a suitable adjustment range. This valve is placed in front of the dishwasher inlet hose and reduces the pressure to a stable 3-4 atmospheres.

The pressure reducing valve costs from $5.5.

If the problem is not in the water pressure, then you need to look for problems inside the machine. Here the practical experience of experienced craftsmen will come in handy; if error code E1 appears, they advise checking:

• filters in front of the inlet valve for clogging;
• the intake valve itself, which may not open well;
• flow sensor.

We have no choice but to start checking all this one by one. Let's start with the filters and intake valve, since these parts are not in the pan.

Troubleshooting

At the very beginning, we will take care of the safety of the upcoming repair. Let's turn off the power to the dishwasher and turn off the water. Next, we will proceed to dismantling the inlet hose along with the inlet valve. The inlet valve in the Hansa dishwasher is external, so we calmly unscrew it together with the hose from the body, and the other end of the hose from the tee tap. Next you need to do the following:

1. At the base of the inlet valve we find a flow filter, which is made in the form of a mesh. We remove it and clean it.
2. We rinse the hose itself, since lime deposits may have accumulated in it.
3. Checking the intake valve. In this case, it is better to test the valve with a multimeter, and then disassemble and check the functionality of the mechanism, because the defect may be hidden.

If you are sure that the intake valve is completely intact, you need to put it in place. First, we install the flow filter, and then we connect the inlet valve itself to the hose.

What to do next? And then we need to remove the left side wall of the dishwasher. Once we succeed, we will have access to the flow sensor. Let's tilt the machine to drain the excess water, and then try to blow out the sensor tubes.Quite often, dirt gets into these tubes and the sensor begins to mope, giving error E1. Having completed the purge, you need to ring the sensor itself, and if it is faulty, you need to replace it with your own hands with a similar one. Dismantling the old sensor and installing a new one is done on a whim; there is nothing complicated.

After all the manipulations, we need to check whether the dishwasher will work. If our actions are not successful and error E1 continues to appear on the display, you need to contact a specialist. Now it’s their turn to decide how to fix this problem. In this case, most likely, the electronic module is to blame, but in order to get into it, you need to have certain skills, so there are no options except calling a specialist.

Let us briefly summarize our story. This Hans dishwasher error is nothing more than a water supply failure. This could be a real failure, or it could just be a problem with the flow sensor. Your guesses will have to be confirmed as a result of a comprehensive check, which you can easily conduct yourself. If you have encountered other mistakes made by your “home assistant”, read the article Error codes for different dishwashers, this information will be useful to you. Good luck!

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