Good evening, I hope you can help me in an LG microwave, model MH-147AP, which does the whole cycle but does not heat, already check everything and it seems everything looks normal, it only has a general fuse thing which makes it easier for me to understand, the sensors are fine, the diode, the transformer, check the magnetron, and the magnet nozzle look normal, I don't know what else to check, I hope suggestions
Technical thanks if I did it like that and even more today I dropped another microwave and checked the transformer and magnetron, diode, caoacitor, and it gave me that the magnetron is also damaged, but something else on the card is failing, I already measured the 4 relays and If they work, they click and give continuity, since there is no energy coming to the primary of the traffic, which else can be, I do not know why the house is the most complicated, I hope help thanks and God pay them
Sorry for the delay, I checked the traffic and everything is fine, the 4 relays, I took them out and checked one by one, all the suiches of the doors, the diode, the capacitor, just need to change the magnetron and see what happens, I wait more ideas thank you
I hope you can tell me if these measurements are good, the transformer in the primary gives me continuity and 0.07 omh, high voltage and chassis 125, and no continuity and finally those of the magnetron 0.04, on the other hand with a 9 v battery connect to the primary and a small spark of high voltage came out when approaching the transformer, and watched full videos and writings and do not match my measurements, it will be that the drink is damaged, thank you help
I forgot something, it did not give me voltage in the primaries, it does not measure anything, I already checked the 4 TVs and they seem to be doing their function well and give continuity
https://www.youtube.com/watch?v=PPkux4UgNpM watch this video to check the transformer
Not all the measurements were with the micro, disconnected and the multimeter the continuity function, and check the 4 relays and the suiches all well, for safety take them out of the plate, I know it is very difficult to damage the tranfo, but It doesn't give me anything else
Friends, thanks for the help, but I still can't find the fault and the worst is that of my dear mother-in-law, you will know how to fix it urgently, recapitulating: energy does not reach the primary of the traffic, check the 4 relays and the suicides of the door well, diode well, capacittor well, magnetron already change for another and still does not heat and the one I use if it is good is someone else they brought to me, it will be something on the card that can be helpful
Hi, what's up my friend, you don't answer me, I already measured and there is no energy output to the traffic, besides the magnetron was also damaged, the suiches seem to be fine, they give continuity when they are activated, and I relay them on the board with a 12v transformer. I activated them and measured continuity and the 4 gave me good, could they still be damaged? , or that another component could generate that energy does not reach the drink, thanks I will be pending I urgently need to get out of this microwave
Thanks for the help pit, and I upload photos and everything was for a bottle of rum that put a cousin to heat, the poor in his condition did not think and good of there is the damage, but already discard everything of high voltage, only damaged magnetron , I will buy it on Monday, but something else does not let energy reach the traffic, I will check welds, and I comment, this microwave unfortunately only brings a general fuse, unlike others that up to 3 have that helps a lot to avoid damage
I did a test with the microwave lamp itself, connect it directly to the wires of the primary of the traffic and activate the panel, and it turns on for a second and turns off, it will be the relay, this also lets in power and cuts it, I took it out and poor with a source of 12v and activates and gives continuity, can something else give that relay failure?
