NECKAR N19E Gas Stove Ignition Issues: Sparking Cycles, Solenoid Valve Replacement & Water Impact

Hello. I have had a problem with a gas stove for 2 weeks. Within a few days the stove needed more and more smoke to ignite. A lot of water had to pass to ignite until finally not every time he wanted to fire. Intense sparking was heard but did not fire. And now, when it was not turned on for a long time, the spark does not appear even after the water is unscrewed. After several attempts to tighten the water, the spark appears but for a few "sparking cycles" after a dozen or so attempts have sparked intensively until sometimes it can be ignited.
There was a servicer who cleaned the stove and said that the solenoid valve did not switch on, so he exchanged it and the stove operated for several days and the symptoms returned again.
Maybe some suggestion that I tell the servicer that I should not lose money in vain?
Could the reason be that the wife likes hot showers where water is pouring everywhere because everything is soaked with water?
BTW. The batteries are obviously mentioned at the first symptoms.

It is possible that the microswitch gets water from the cover or the ignition electrode has a puncture ... There is no ready answer. The serviceman should look for them until he finds them.

Batteries replaced, but for which? Is alkaline? The furnaces are always alkali (zinc-carbon they do not hold the tension and immediately they discharge).

Is there a spark on the electrode every time and beats where it should beat? there may be a breakthrough on the wire, on the electrode, etc. Once I had that with the enclosure removed everything was ok, and after putting on the wire touched the housing and there was a puncture. Sometimes the microtorch has a bent spring and the gas flies somewhere other than a spark.
do you always hear the opening solenoid valve - because I can also be different.
And does not the electronics fail

Batteries replaced with alkaline. After a longer break, for example, during the night without using the stove, the spark (intense) appears only after several attempts to dislodge the water, but still does not start and after some time when it will fire, it fires without a problem and quickly enough.
So the problem is that after a long period of time, I do not want to run and in the beginning there is no spark. And when a technician comes, it probably will work and he will not know what to do.

Is water dripping from the water unit needle after the tap is unscrewed? If so, replace the lid + microswitch. It looks like there were two faults: at the level of the microswitch and microtorch. Check after the night or after unscrewing the tap, the lever of the microswitch moves, it is best to dial it and check whether it works every time, and preferably replace (a few PLN in an electronic one). As for the microtorch (candles), I wrote above, or set the spring well or replace it with a new one. Gas on the microtor after the night opens (with an efficient microswitch)?

A service technician is about to arrive and give him these suggestions.

Added after 2 [hours] 39 [minutes]:

Hello. It turned out that there was water in the microswitch. He cleaned the micro-drip in alcohol and cleaned the water system, and it works.

authorized service? how many deleted .....? because it is money thrown in the mud, unless it comes under the guarantee for a few weeks and admits to the mistake.
If you did not have a phone call after the term, then you have a leak on the needle from the water unit from which it dripped onto the microswitch. You have to change the water unit cover No. 8705500105 from 80 PLN + microswitch (in electronic pare PLN, original about 60 PLN), + labor. Flooded microswitch is not sure that it will work without problems, and often happens to hang.
Look at the forum, because there was a lot of it.

Not authorized. He deleted 50 zlotys. If the problem appears again, it will probably take somebody else. It is such a local visitor who calls himself so, but in all my block he serves people and is kind of satisfied. We'll see tomorrow morning if it helped 100 percent.

Hmm, honestly, it's rather a temporary repair. Most likely a damaged microswitch and water unit cover. The cost of spare parts is around PLN 180 plus labor and transport. Junkers' service may be more expensive but after the visit the trouble does not come back

Hello. I regret to inform you that you were right. Is it necessary to replace the entire water unit that costs as little as PLN 300 or just a lid?

The lid is enough, but if you put in a new water unit with a modulation of the flame for less than PLN 300, I would prefer the whole (WRP11B fittings not with N19E) You will gain modulation, saving water and gas.

Hello. I replaced this lid with the microswitch as you wrote and the problem was solved