Error E4 on Hansa dishwasher
The Hansa brand produces dishwashers that are very acceptable in both quality and price. But, as you know, any equipment breaks. So in our case, the E4 code in a dishwasher of this brand appeared when it was not expected, and completely stopped the operation of the equipment. Why did it appear and how to return your favorite dishwasher to working order? We will answer these questions within the framework of the article.
Decoding the code
Looking at the operating instructions for the Hansa dishwasher, we will see how clumsily the E4 error is deciphered by the manufacturer itself. Literally, the decoding is presented as follows: “overflow of water.” What kind of water overflow? Where could it have flown to? It seems that the operating instructions for such machines are compiled by employees of authorized service centers. Well, what if the user reads the instructions, doesn’t understand anything, and turns to the specialists who are happy to try to “rip off” a couple of large bills from the poor user.
Repairing a fault on a Hansa dishwasher associated with error E4 can cost $150-200, taking into account the cost of spare parts and the work of a technician.
Of course, on our part this is a joke, no one will deliberately squeeze money out of a user, but the problem has not gone away, it must be solved. What we have? Here is error E4, here is a certain overflow, which is mentioned in the instructions and there is no more information.
According to experts, the error with code E4 is caused by the fact that water filled the tray of the Hansa dishwasher, which triggered the protection in the form of the Aqua-Stop system, which in turn blocked the operation of the equipment. Now, without fixing the problem, or at least draining the water, the machine will not be able to start.
Possible causes of the error
Based on the detailed explanation of the E4 error that experts give us, this problem arises due to the fact that some part, tube or pipe inside the body of the Hans dishwasher has begun to leak. The tray of the machine is not that roomy. About a liter of water is enough for the float of the Aqua-Stop mechanism to rise, activate the sensor, and the machine stops working.
The pump, circulation system pipes, inlet hose or pipe may leak.
The list, in principle, can go on and on until you open the case and find out what exactly is leaking. However, one of our clients experienced an error with this code for the following reason. Let's start the story in order.
A couple of years ago, our regular client approached us with a problem. His Hansa machine did not work, and it not only refused to work, but gave an E4 error. The user himself came up with the idea that there was water in the pan of the car, and that this is why the error popped up. He drained the water, started the machine, but after 3 minutes it stopped again, and the same code was displayed on the display.
Our technicians came to the call and immediately dismantled the dishwasher. It turned out that the reason lay in the flown pipe of the circulation system. The factory clamp loosened and the pipe came off, causing water to flow unhindered into the pan. However, this is not even interesting. The very fact that the pressure pipe jumped out of its place does not represent anything remarkable, but what caused the excess pressure?
Here again we cannot do without some background.The fact is that our client, when he bought a dishwasher, decided to immediately start saving and instead of special salt for the dishwasher, he used ordinary “Extra” table salt for several years. This caused some of the salt in the tank to turn into a thick salt porridge, which created an obstacle to the passage of water and excess pressure.
As a result, if the pipe had not flown off and our craftsmen had not paid attention to this, the client would have ended up with expensive repairs over time. After all, excess pressure creates a load on the circulation pump, which will break down much faster. All in all, it still ended relatively well. The moral of this story is, don't skimp on dishwasher salts and the trouble described above will not happen to your car.
How to find the cause?
Now let's talk about how to fix error E4, or rather the reason that this code causes. But first, this reason must be discovered, and for this, the Hansa dishwasher must be disassembled. What to do?
- Unscrew the screws and remove the top cover, back wall and tray.
- Unscrew the Aqua-stop.
- We remove the unscrewed sensor to the side and, in principle, the disassembly can be considered complete, since all the necessary parts that should be checked are at hand.
Well, the dishwasher is disassembled, now all we have to do is look at where the water is coming from and fix the leak. It is strictly not recommended to seal holes in pipes and hoses using electrical tape and sealant. Any damaged part must be replaced, otherwise operation of the dishwasher risks ending with error E4 again. We eliminate the leak and reassemble the machine in the reverse order.
In conclusion, we note that a Hansa brand dishwasher produces an error code E4 when the Aqua-stop system is activated. This means that a leak has formed somewhere and this leak needs to be eliminated in order for the “home assistant” to work again. There is no point in simply draining the water; it needs to be repaired. Good luck!
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When I start the program, the machine drains the water and stops. It thinks for a long time and eventually produces error E4. Analysis did not reveal any overflow.
Check the contacts of the overflow sensor, which is located at the bottom of the machine. If everything is in order with them, then remove the sensor and check it with a tool. The extreme contacts must be closed when there is no overflow. And open when it is.
When draining, in the first few seconds, the pressure in the drain system overflows water into a tank with a rectangular hole at the bottom, and from there into the pan to the sensor. After two or three cycles the sensor is triggered. Why? The drain hose was not crushed or pulled up, the machine had been idle for a long time, but it was connected...
Don’t be idiots, good craftsmen, the obstacle at the pump outlet does not create any load on the pump, in this case it is easier for it to work, since it is centrifugal.
It gives error E4. Refuses to wash dishes. What should I do, please advise? My wife started drinking.
I don’t know about your client, where the hose fell off, but when I took it apart, this hose was short, I had to heat it with a hairdryer to tighten it. It is impossible to do anything with a reserve. Temperature drop - that's where it comes off!
The reason is most likely not that there is a blockage somewhere, but that over time the long hose to the upper sprayer is shortened by several centimeters due to aging. Due to a design error, the hose is installed end-to-end and has no reserve for elongation - therefore it is stretched and breaks, especially under the influence of vibrations and pressure.
Accordingly, it can be torn off again, so it is best to increase it by adding a piece of a similar hose of 5-10 centimeters.