Ariston Electric Boiler Leaking: Causes, Solutions, and Prevention for Water Dripping After Usage

I warmly welcome.
For some time there has been a problem in the apartment I rent with the Ariston electric boiler, namely when it is connected to electricity for a known purpose, after some 15 minutes the water starts to drip from an unknown wind, which I have marked in the pictures below. The intensity of the water dripping increases with the heating time, i.e. after 20 minutes, water appears with a frequency of approx. 5 drops per minute, but after half an hour of using the boiler, the water drips really often. I must admit that it is troublesome. Interestingly, the problem disappears for a while when I flush the toilet or when I turn on the shower. I have no idea what to do with it, so I am counting on and asking for help from experts who are fond of such puzzles. Let me add that the dripping water is cold. I found a similar topic, but I did not get a clear answer, what to do to get everything back to normal.



Greetings.

Hello, from what I can see, the place from which your water is leaking is the safety valve. The safety valve is a valve that protects the equipment against pressure build-up. When the pressure rises, this valve releases water. It is normal for temperature and pressure to rise as this valve does the job. If the temperature is not high and the valve is leaking, it should probably be replaced with a new one with the same parameters

Unfortunately, I did not find any lever; all the things that are in the photos are nearby. So the finish is such that it is better to call a plumber than to wrestle with this safety valve yourself?

@U.P.: it drips after about 15-20 minutes, then the water is just lukewarm / warm. I'd rather not make it worse and as a rookie not attack this valve. Well, unless the entire replacement process does not require special skills.

It is best to entrust it to a plumber who will tell you what to do with it and possibly replace the safety valve

You can handle the exchange yourself, it is not particularly difficult - all you need is manual skills and a little bit of mind and everyone can handle it. You just need to turn off the water (there is a valve in front of the flow meter) and empty the boiler ... Then you unscrew the hose going to the valve, then the valve itself However, it should be remembered that the new one has the same parameters.

I suspect that there is a high pressure in the installation and when warming up (due to the use of a non-return valve and safety valve) in the boiler itself, the pressure rises above the activation of the latter. In this case, it may be necessary to reduce the pressure upstream of the boiler. I had a similar situation - input pressure ~ 5atm, valve at 6. It always dripped when warming up. I reduced the pressure to 4.5 and the problem was gone.

What about this fault with the owner of the apartment?

The owner promised to get ... an electrician some time ago, but it was the day before yesterday and stated that she could not do it and did not have time. I felt as if some chick was telling me "you are not a real man" and that something could break inside me, but I took it cool and after the weekend I will call, recall the problem and realize that it is up to her to solve it.

As for the fault - is there any greater risk? I am asking because this "pressure" sounds scary; that a little more and it did not blow up the whole apartment for me, or worse - flooded the neighbor downstairs.

This is what this valve is for, so that you do not blow up the whole apartment In the event of an increase in pressure, it is designed to release water, which results in a decrease in pressure. If you are afraid that your apartment will flood you, you can put a bucket or bowl under the valve.

The simplest solution in this case will be to buy a hose with a length of about 0.5 m and direct it to the bucket below. Or, make the tap drip after turning on the boiler. The counter will not measure it.
Abroad, everywhere I saw a "inlet" to the sewage system under the safety valve. In case it will drip- to the sewage system and that's it.