00:00assalamu alaikum it's cut out for repairing because there is a problem that the customer
00:21told us that there is a problem that the compressor does not turn on but the error does not appear
00:28enough time it starts running but it doesn't get error we have connected this compressor after
00:34communication and see it is complete now i will give voltage to it in series i put and see this
00:41is that first of all i see this now it is turned on it now has this motor which is an indoor blower
00:50motor i installed it look they are singing but it happened this is about what has been done in it
00:58now this has turned on suddenly and once it is on look at what it is doing see this it is on it is
01:05off look at it now as it happened this temples again activating the relay which then turns off
01:13the relay is being activated see this all right this is how it is occurring when the relay turns
01:18on the load increases on it there is a shot in it okay it is short but when there is no error
01:22consistently it becomes a big issue see this is how it is switching editor and this pgc cuts it off now
01:30we see the issue is that the pcb in its order belongs to the customer it knows our pcb is fine there is no
01:38fault in it it is okay but this consistently shows you that this is such a fault that there will be no
01:43error in it absolutely no error see this it does not produce errors and it switches this way so when
01:51we turn this off now i will connect this complete circuit this is the indoor and outdoor pc i will
01:59give it voltage now i'm checking what's inside this let's find out now i'm starting to give current
02:07from this this is for communication this is our l and this is n now i'm starting to connect this with
02:14the line okay and alongside this one in this there's a small relay that's installed it doesn't turn on
02:24until that time it won't activate until its time limit is reached when it signals the microprocessor
02:31activates the relay but we will proceed now what happens is that when we connect it in series c
02:38nothing will happen now i connect it like this now i'm using the help of the nozzle to connect the
02:45relay from here if i get the green light i will check i know this line is okay it is clear that
02:51then along with that now when i touch it i will see if there is an issue in the dc look at this
02:59light see it is shining brightly from here look look look well right there is something here i am
03:09checking what this is first i will check its heat i will remove the thing after that we will see what
03:19the problem is in this situation what is the issue in this what is the issue in this what is the issue
03:37in this what is wrong what is wrong what is wrong what is wrong let's check the diver first we will check
03:45it let's check it let's check the bazaar for any problems or issues
03:51now we will check all items at the bazaar your turn to check
04:00next we go to the ipm there's a problem on the high side but not on the low side
04:08now we will check these things you will turn the diver and we will check the first reading
04:14the third reading should be slightly lower let's check the diver now
04:23one side is okay and the other side is fine too now we check the
04:32the reading of this unit is fine and this gate is also okay
04:40now the problem is that switching is taking place as you saw
04:45the lab is in a switching it has just disabled and get
04:50what happens here is that debbie i am sorry this microprocessor started switching while this
05:00the driver is connected this is what we need to check the azee and the draft c1
05:07this is what we need to check the azee and the draft c1
05:14these components of a pc gate the assembly is in call for it
05:22we will check this here this is 2.2 we will check the seating
05:29do you see his reading check it out here you can see it here
05:36this is the reading of it here when i'm checking it
05:40so it's straight here to drive it here it see it here it drives this ic
05:47see two and it's here to point to mega but show it see this
05:54johaye zero zero shogari it means it has been short now there are two reasons for it being
06:02short which is this is what our eye is attached to it can also be short due to which it is coming
06:09and this too now we are thinking that we will take it off and we will not pass it
06:16how is this happening here
06:20see this i have now attached it now put it after taking it off let me see
06:28whether his condition is the same or not now after that we will see that he
06:35what is it that its ic some driver ic is bad its or our it is some other problem in this we
06:42this we now in this i removed this registration
06:47now after removing the resistor i started to check it again
06:54it does we have now removed the region since but with it now the igbt was also suspect removed it
07:02now check it
07:04is it bad or not bad what is the problem it is thinking repeatedly
07:09what is the problem i will check it now i will check the meter here for you
07:14i put it in front of him like this i will check it first on
07:23if we check this here it's perfectly fine there's no damage or anything it's completely okay
07:30now i will give it voltage again let's see here where i can connect two variants because we need to discharge this
07:39the second thing is that there is a relay here when communication is needed this relay turns on
07:46now we will check the circuit directly by turning it on
07:50we need to check this this is our red wire the positive side
07:54i connected the meter to dc at 600
07:58i do this to ensure i need to find out if this capacitor has fully charged or not and whether it has discharged
08:05this has charged and discharged whatever it is it shows up on the meter right away
08:10so i connect it here
08:12now we will give it current here i will connect the series here see i have connected it sorry
08:17now this i didn't set this reactor i will set it now
08:21see this i've set the reactor here now i need to reset this relay since it won't function without communication
08:28look i've given it current now there's no voltage noise here like before i will check what it does
08:36see this now it's charged from the capacitor the voltage is complete look it's boosted this indicates that the
08:45the iebt gate gets current repeatedly which is why we don't encounter errors
08:52after a long time after five to seven hours we woke up sometimes an e6 error happens but it doesn't come quickly
09:00this was the problem now we will do it what about the driver ic
09:05we will remove it and check if it's faulty or not we will change the driver ic and the pfc will also be fine
09:12and along with this the entire circuit will function properly with the pfc we took out the i gbt before testing
09:19now we will check if the circuit is ok and if the compressor is on
09:26if it is we will add the driver ic
09:29this kit is good
09:33we have finished communication and i removed the i gbt it's not here this is full control
09:41here this is full communication
09:46i'm starting this now look i'll connect it directly
09:51this is off and my brother has turned it on
09:54this is the temperature see it's ok
09:58let's see if the compressor starts but we won't keep it running for long
10:04no pressing is attached to the ipm
10:11let's see if this turns on or not or what the issue is we'll find out soon
10:17if this turns on correctly we will install its ic driver and turn it on with the i gbt
10:25come on see brother our compressor is now on
10:29ok look this compressor is connected
10:34look this compressor has turned on which means our driver ic is faulty
10:39it's defective see this
10:44this compressor is hooked up
10:51it has been
10:58make it work it has been done
11:00look this compressor is connected it has been done
11:04i didn't set this reactor i said it
11:06see i placed this reactor here now i will reconnect it since it will activate with communication
11:12communication see I provide a current now there's no voltage noise look it was
11:18shot before now I check now it's charge see the voltage is complete this
11:30indicates that deep receives current at its gate repeatedly which is why it
11:34functions no error an error comes after a long time five to seven hours later then
11:43any six error shows otherwise it does not come quickly
11:58following this I will create a second video demonstrating how this change was
12:03implemented and how the PFC has been fully completed thank you for viewing the
12:08video take care
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