Yesterday, after reading the post, I accessed the condensate tube, there was water in the tank, but I guess it will always be there because it works like a siphon, i.e. it pours into the tube after filling, after disconnecting the tank, I also blew the upper part of the tube into the combustion chamber, there was no resistance to the flow. , so nothing has changed, still the error, today there was a service, the motherboard was replaced again, because it was old (i.e. 2 weeks old ;-/), something burned in it and it lost its settings and the stove instead of burning e.g. 6 meters of gas a day ( this was my consumption in the past at temperatures around -5C - 0C) it burned for 12-14 hours!!! where we have a temperature of +5C during the day +8C at night, at most 0C, so it`s a failure, for now the stove works and turns on, although I don`t believe that it will do anything because what is the difference between this plate and the other two, but we`ll see how the consumption will be I will also complain about the gas because it is not about burning more than twice as much as it should, (if it is not under warranty, it is better to unscrew it and throw it away immediately, because almost the equivalent of the furnace has already been replaced in parts) the meter has been written down - we will see. Regards
Added after 1 [hours] 37 [minutes]:
And the stove worked!! whole 2 hours, ignition attempts failed, flame went out, error 501, folk Polish again, no words!