Identify Damaged Elements on Dimplex Gisella Electric Fireplace Plate - LEDs & Heater Issue

I am asking for help in identifying the two marked elements on the plate from the Dimplex Gisella electric fireplace
The problem is that there is electricity to the board, but it does not come out anymore and therefore neither the LEDs nor the heater work. Looking at the plate, you can see these two elements a bit blackened, so I suspect that they are damaged and now the only question is what is it?
I am a complete layman, but when I know what to order, I will solder it without any problems.
Thank you in advance for your help.
Regards

You have to show the plate on the other side.

Element / three wires (next to the IC) that is in the sleeve - the three solder points look "cold February"

Added after 7 [minutes]:

These three wires are probably something related to IR and operation from the remote control, but the board has an output for normal flip switches and there is no electricity on it.
There is probably also a 16A fuse on the board, but I don't know where.
I do not have a remote control, it was lost

JerryZawil wrote:

something related to IR

It is the infrared receiver, perhaps the "cold February" points are soldered spring sleeves to disconnect the IR receiver.

Fuse / PTC, it could be; what is written on it:



You need to measure the supply voltages on elements Z1 and Z2.

Due to direct connections to the 230V network without separation, be especially careful.

What you marked in the first photos is a protection diode on the relay which will turn on the output voltage of this device and the transistor which controls this relay. When writing about the lack of voltage, you meant the voltage at the output or the power supply of this integrated circuit (i.e. the power supply controlling the electronics), if only at the output, check if the small transistor you selected is good. Probably both elements can be replaced, you only need to know what voltage there is, and this is written on the relay. Check what he writes on it and then measure whether there is such a voltage, but as a colleague wrote, carefully because this power supply has no galvanic separation from the network and there may be full voltage on the path, i.e. 230 V

We start our measurements with the voltages on the C8 capacitors. As usual in such power supplies, the 12 V Zener diode, which is its base, breaks through. Too poor photo to search for it. (Z2? Z3?)

see what voltage is given on this relay, then check if it is on the diode you marked with the red frame, if it is not, check between one of its legs not connected to the transistor, and one of the legs of this transistor not connected to the relay

Added after 3 [minutes]:

The LED you are writing about is probably in the middle of the first three photo (print side view), in the middle of the PCB, the one with a blue stripe, because it is most suitable for this type of power supply like this one.

@microbe We start with power, don't you, Mr. Bacteria? . Later we investigate further and the relay and its control are ho, ho .....

JerryZawil wrote:

The problem is that there is electricity to the board, but it does not come out anymore

This description does not explain which voltage is actually missing, so I assumed that 230V at the output, and it passes through the contact of this relay, if there is no power supply to the control system, I agree with my friend and most likely the zener will be dead, but the relay often fails and charges this weak one power supply on capacitors.

Mikrob wrote:

but the relay often fails and loads this weak power supply on capacitors.

Rather, the coil does not rain in it, so nothing is happening, but the Zener diodes do. Remember that the power supply is to power both the processor and the relay and some LEDs in addition. The capacity of the reactance condensers is thus calculated. And if the Zener accidentally opened completely (its ability to stabilize the voltage would disappear), then there is nothing to collect from it, because the processor is already a corpse.

Krzysztof Kamienski wrote:

The zener opened completely

buddy, oddly enough in my many years of practice, the zener is almost always short-circuited, i.e. the voltage will not jump, and what do you think draws more current from this power supply, this processor or relay, I rather bet on a broken transistor controlling the relay.
Well, but unfortunately the author of the post has not yet commented on the question of what exactly was supposed to mean

JerryZawil wrote:

electricity comes to the board, but it does not come out anymore

maybe let's wait for him to explain it to us instead of unnecessarily bothering with explaining the problem