Danfoss 101N0210 - the controller turns on the refrigerator for a short time and

I received a Danfoss 101N0210 refrigerator controller. The controller turns the refrigerator on and off for a while. I quickly checked the thermal protection - it's ok. There are IRFR9024N transistors on the board. One of them shows suspiciously low GS (source gate) resistances of about 17 ?, and from the drain to the gate (DG) of 5 ?. I also do not know what the element with the markings 704 is (next to the transistors and in the same housing). It also has very low resistance between the pins.

So far I have checked "in the system". Perhaps it should be so, but it is suspect. What does the element in the photo marked in red with a black potentiometer (?)

My guess is it's some kind of solenoid valve that flushes refrigerant over the fridge. The compressor is in there BD35F, for 3 pins.

I have the same problem, the flash codes show me error 1, i.e. too low voltage, and the supply voltage is approx. 12V and 24V, only the fan switches on cyclically for a dozen or so seconds. The photo shows the same thermostat as in older refrigerators, it has a capillary, which is located in the middle of the refrigerator compartment.
https://www.youtube.com/watch?v=tR_Ro6PGGfo
danfos..jpg Download (50.97 kB)

I don't know what's going on, but the first time I connected, the thermocouple fired (the one in the heat-shrinkable sleeve). Anyone know its exact parameters?

On the rightmost transistor IRLR024N I have very low resistance between the pins. Transistors are MOSFETs to get, but as for the Prock Dialog D0798BA-LF, I can't find any documentation completely. I tried to measure whether there is power at all on the extreme pins (usually there is power), but nothing is ...

Transile is working, but I can not decode the element marked 704 in my photo .... The voltage for the windmill is provided all the time from what I can see.

When connecting the oscilloscope at the diode points, nothing happens when the power is applied as well.

Check the led which shows you for the failure of the link post above or other videos of this user, maybe the reason is a damaged generator. This element is a double 6cwq06fn diode

This mysterious duodode from the magnifying glass turned out to be stratified and has punctures. I ordered these diode and transistor 024N. Desoldering it is almost a miracle - the non-contact soldering iron can barely cope, as if it was concreted on the bottom .. I wonder if the diode will show anything, because by plugging the oscilloscope between + and pin D when powering on, it spits nothing on the oscilloscope ...

This diode can be connected with a standard small 3mm LED?
Edit:

my friend pppooo - did you check the processor voltage? For my eye it should have 3.3 or 5V on any pin in relation to the mass, and in my case zero ... It seems to me that this duodiode and the spilled 024N transistor should not affect, for example, that the processor has no power. Well, the thermal fuse can not get the same and parameters.

Yes I connected 5mm. I did not check the processor voltage, no time.

Could you please check it out for me if you could find a moment? Dialog D0798BA in your driver? I read that these drivers are also based on other prock sometimes.

Now, unfortunately, I will not connect the diode, because the system is partially desoldered, but I hope that tomorrow there will be elements for soldering, so I will check if the diode shows anything ..

The diode shows nothing. I soldered the original elements controlling the compressor phases (one of the transistors) and this mysterious two diode. There is no voltage on the processor at any of the pins (read power supply). In my eye, one of the circuits on the board is the LM7805 stabilizer (3 pins, SMD) or some 3.3V, because it is doubtful that the SMD processor is powered by 12 or 24V. Maybe it fell - but the situation is strange, because this system has 12V on two pins, at 3 zero. Maybe someone knows if there is any HARD RESET of this circuit? I found some information but not much.

The refrigerator has fallen and I have been blinking 3 times, I understood from the video that this is a compressor problem ?.
The refrigerator was dying for quite a long time - it had a problem with starting, after some time and a dozen or so attempts it turned on. Is this a symptom of a lack of refrigerant?

I answered myself a bit: Motor start error
(The rotor is blocked or the differential pressure in the refrigeration system is too high (> 5 bar))

Engine starting error:
(The impeller is blocked or the differential pressure in the refrigerant circuit is definitely too high (> 5 bar))

I do not have too high pressure in the system (unless something is clogged) ... The basic question is whether this compressor has a typical three-phase motor and whether the lack of phase or refrigerant can cause problems?