GECO G403 P02 Feeder Issue: 25KW Hef Stove, Controller & Diagnostics - Triac, Microswitches

Hello. GECO G403 P02 controller with 25KW hef stove. The feeder has stopped working.
The feeder is operational - it turns on and turns off the external power supply. The executive system is checked ... the triac is operational, but finally replaced from the feeder and the blower, at least for the sake of peace. The repair is finally done by the service. The executive system, however, was not tested on the stove. The fault is still the same, namely:
The diode from the feeder turns on and you hear the magnetic switch on the board, visible flash. A trial was made with a 100W bulb. The filament just lights up and goes out.
I was lucky that my friend has the same stove, so I connected the control system (the one with the display) to the other stove and the same problem. After reading the forum again ... the microswitches in the control panel are listed and the problem is still the same. Tape "wiring" connecting the control and executive panels also mentioned. I don't know anymore which element releases voltage per second, not permanently, and why.

My next step is to connect my executive module to a friend to eliminate this system and focus on the control system. Please, suggestions. The post about replacing the microswitch in the control panel has already been made, the photos are very helpful. Thank you for that. The problem is somewhere further.

What triac ??? According to instructions control relays ... Replace, or at least swap places (e.g. with the one from the central heating pump)

There are 2 black triacs on the executive board. One from the fan, the other from the feeder. From the service that repairs also confirmed that they are typical faults. Still the same after replacement.
After replacing the microswitchy and re-checking on the friend's stove, the same fault. So it does not turn on the feeder. I could not verify the performance board, because my friend has a different and different connections. I will focus on the control panel (i.e. the display) and check the next elements on it. As I wrote ... voltage goes to the feeder, but only for a moment - it lights up the bulb, but it does not maintain this state and the feeder does not start.

Haven't you set the feeding time to "0"? I used to do it when I was smoking on the grill (by hand). If it turns on (at least for a moment) the system is ok - it is turned off by the program or some protection, e.g. the feeder temperature (although then it should not even flash, the alarm would scream).
You can save the settings and restore the panel to factory settings (if it has such an option).

Link maybe something will help ...

This is also not the way, unfortunately. I had flesh and blood electronics at home ? to check, and suddenly everything works. After a few hours of work, the same problem again. After a week of work with the blower alone and manual burning on the hearth, keeping the settings in the automatic mode, the feeder suddenly started working. Only once, and the next time, only the diode signaled the start of the feeder, and the feeder itself did not start. Fixed settings. The driver itself turns on the feeder and the LED lights up, so the settings are ok. Unfortunately, the feeder does not start. Some element on the board blocks or cuts off the power after a fraction of a second. The control element may not support 12V for the magnetic switch (I guess) or the magnetic switch itself may ... I don't know. I am more mechanics and simple circuits, electronics and all the components ... I don't really know how to check each element.
Best regards and thank you for your interest.
Tomorrow I will have the system checked again for components and I will see if I can catch anything.

"magnetic switch" you write - that is, the relay - do not combine and replace. The contacts burned out will be the effect. And the "triac" is probably a transistor that controls ... a relay.

Compnet ... thanks for the clarification. I will definitely order a new one ... It also occurred to me and I struggled with the meter, checking whether it was on or off.
However, there is a fact that the panel with the display itself shows the same error on the second stove and the "relay" is functional there. This element is on the operating panel, not the control panel.
I will add a photo of the control board that is the cause of the fault, and the executive board.
Magnetic switch "relay" RM40-3021-85-1012.
Triacs ... ACST4108, GK263 VU - replaced with new ones.
There is a microswitch soldered on the wrong side ... I didn't have a suction device so I just soldered it to check the operation. Please ignore that.

1. What version of the program you and your friend are checking on? IN instructions there is a note about the differences in connection - maybe you have different sofas and therefore it does not control the other module as well?
2. Do not mix triacs to the problem - one is from the fan, the other I do not know (unless you specify which contacts it goes) - the feeder is evidently controlled by a relay (the bottom one in the photo).
3. Check the ribbon - is it the same on yours and your friend?

1. I don't know. The executive module at my colleague's was newer and for two pumps from 2004. My 2001 different connection so I could not check by swapping it. This software doesn't know anything about it unfortunately. I don't know how to check.
2. The triacs were confirmed to be from the feeder and fan. Checked and, just in case, replaced with new ones as it is sometimes a typical fault of the executive module. I confirm that the magnetic relay / switch from the feeder is the white one above (located closer to the center of the plate). I checked which one flashes when the feeder is turned on.
3. I will not check the ribbons, I bought a new one and the same, so I have nothing to compare.
Thanks for the suggestions. Tomorrow I will leave the PCBs for the electronics and see if he locates anything.
Another question - where to look for such typical driver parts as suggested earlier.

Added after 12 [minutes]:

The photo shows the second side of the executive module. You can see where the triacs were built in again. The fuse socket has also been replaced. New soldering is visible. If I remember correctly, from the feeder there is a triac closer to the edge of the plate.

The sticker in the first photo shows that it is a service ALTERNATE of the module - as in description
Has the module ever been changed? If so, were the connections (are different) improved?
Relay available for purchase here , here (a rip-off, but they have branches in several cities - you can order and the parcel is out) or any similar
I don't have any more ideas ..

Fixed. Replaced RM40 relay.
An interesting fact is that the control panel showed the same error on the second stove. There is nothing to suggest. It is best to replace the indicated components ... it is cheaper and you do not waste time