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Refrigerators
Electronic cards for refrigerators
hace 6 años
hace 6 años
Hi, thank you. Can you help me? I have a certain notion in repairing refrigerators, those that use a watch, but of the digital refrigerators or those that use electronic cards, I always ask myself the following question and that is where I need help. That part of the card must be bridged or operated to know if current reaches the bimetallic so that the resistance can heat. And my second question is the bimetallic ones that are digital as they are tested? I appreciate help
57.307
hace 6 años
hace 6 años
At present, many refrigerators with electronic card COMBINE the 2 elements: bimetal with defrost sensor, especially the mabe brands, General Electric and other brands, the bimetal is a mechanical element --- electric, that is to say a swich with lamellae that upon reaching the indicated temperature, these are closed to join their contacts, I need to mention, that many cards bring 2 pins to force the thaw and bypassing those pins, the thaw is already advanced and we can see if the contacts really close the bimetal and heats the resistance, and I repeat also bring defrost sensor, greetings
hace 6 años
Friend thanks for your answer you say that many brands bring two pins to force the thaw, I imagine that it should be, now my question is how were those two pins? Do they have a name? Number? Any serial? Any lyrics? Thank you for your answer
57.307
hace 6 años
for example: the card called live source, for the brand mabe, they bring 2 pins marked with the letters J1 and J2 and when bridging those 2 pins is forced to thaw, cut the compressor and enter the resistance, then I put a video for better understanding: https://www.youtube.com/watch?v=VQ96Sc5aIys this is a type of card, there is another, which bridges other 5vdc and GND pins: https://www.youtube.com/watch ? v = WRdaCvEFcWw there is more in that area of you tube
57.307
hace 6 años
Here is another one, this one for the LG brand: https://www.youtube.com/watch?v=pIPmuYxK_4o in this case, two bridges that are enclosed in a rectangle with the word TEST SHORT are bridged I do it in the same In the end, there are more cards that can be forced to thaw, right now I don't remember, but you can search more on you tube, luck and greetings
hace 6 años
Friend thank you very much the truth thank you very much please if you remember where I can find suggestions or answers for my questions I suggest you let me know, again thank you very much my name is carlos
hace 6 años
Dude, do you know anything about the electronic cards for refrigerators brand? How do I force the thaw? In this model or brand?
57.307
hace 6 años
I do not know that brand of refrigerator, but here in this query, a colleague says that pressing the last 2 buttons at once for 10 or 15 seconds, manual defrosting comes in, I leave the link: https://www.yoreparo.com / refrigeration / refrigerators / questions / 1573613 / fridge-makes-does-the-thaw-how-to-force it, I really don't know what buttons it means, if your device has buttons, do as the colleague indicates, greetings
hace 6 años
Friend good afternoon I have a mabe washer 24 kilos with diffuser model Lmh74201wdavo I need to remove the blade or agitator has a lid in the center and under that lid a screw already take everything out but that blade does not come out is very hard or does it have any technique to remove it ? Could you help me?
57.307
hace 6 años
Fill with boiling water until you cover the stirrer plate and then put it to work, the agitator plate will float on its own, or if the washing machine does not work, leave with the water and loosen the solo, with the hot water, greetings
hace 6 años
Thank you for your answer the washing machine if it works I need to take out the blade for maintenance, my question is when I put hot or boiling water even to drop the pump that expels the water that hot water does not damage the pump or other things? Sorry for my lack of experience
4.047
hace 6 años
hace 6 años
Hello, in general, if it is electronic, it does not have bimetal, it carries temperature and defrost sensors which are models of sensors in 2.7K measuring them at 25 ° C 5K and 10K always at 25 ° C you have to give the sensor its value and I do not I worry about the plate first I check all the components separately by measuring them with a clamp and testing directly and then just there I go to the plate and look at the electric diagram of the refrigerator and I see which plug on the plate is of such component and I make make a test of components to the board (in some models) but if everything goes well from what I check I already think that it is the board and keep in mind that there are models that when you just plug it in do a test but often does not describe any error and then at the time they appear blocked full of ice. With respect to the thermal resistance fuse (s), they always have to mark continuity at any temperature, not a bimetal that only activates cold
hace 6 años
Thanks for your response, in the refrigerators that use the watch it is easy to make a diagnosis when the fridge is full or covered with ice. One as a technician does something very simple, he advances the clock to the option of resting the engine and that is where he sends the current to the bimetallic and if the bimetallic is good activates the resistance and with the heat defrosts the ice, but it is there where in the digital refrigerators I can not make a good diagnosis, in the case of a digital fridge that fills or clogs ice to advance that time for the engine to turn off and send the signal
hace 6 años
Continuous ..... to the sensor to activate the resistance, that's where I have the problem I don't know what to do I hope you can help me, the old refrigerators use bimetallic I have no problem but if I have problems for a good diagnosis with the digital refrigerators especially when it is covered or filled with ice that is not defrosted and the sensors are not tested either I hope you can help me please and thank you
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