HAIER DC INVERTER AC E7 ERROR#207

Babar Electronics HVACR

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Transcript

00:00As-salamu alaykum.

00:02Hi, this is Geeta.

00:04It has come from one or two places.

00:06In this,

00:08E7 is written.

00:10And in this, there is a problem

00:12that

00:14in this, there is a problem of E7.

00:16Let's check why E7 is coming in this.

00:18Let's check why E7 is coming in this.

00:20This is the wire of its reactor.

00:22Let me attach it here first.

00:26After that,

00:28let me attach this

00:30wire here.

00:32Main. Let's give 220 in series.

00:34Whatever the condition is,

00:36the lamp will tell us

00:38what is the problem in this.

00:40We will go according to that.

00:42We have to fix it on the lamp.

00:44See, it is working fully.

00:46Something is short in this.

00:48And neither will the capacitor be charged.

00:50Now, we have to see

00:52what is short in this.

00:54Give me the meter.

00:58First of all,

01:00let's keep the meter here

01:02and see what is short in this.

01:04First of all,

01:06let's check the bridge.

01:08It is coated on this.

01:10It will be checked from here.

01:12It will not be checked from there.

01:14See,

01:16it is working on everything.

01:18See, they have removed everything.

01:20See, soldering is also not done properly.

01:22See, soldering is also not done properly.

01:24Let's see what the problem is.

01:26Okay.

01:28This is not short.

01:30Okay.

01:32Now, let's check it

01:34by putting it on diode mode.

01:36See,

01:38now the reading of this

01:40should be clear here.

01:42See,

01:44it is coming.

01:46See,

01:48and now,

01:50it is fine.

01:52Now, in this,

01:54after this,

01:56this is short diode

01:58and IGBT. Let's check this.

02:00Let's put this on diode mode.

02:02To check this, see here,

02:06this is also not short

02:08and this is also not short.

02:10Now, let's put this on diode mode.

02:12Let's take the reading of this.

02:14So,

02:16See,

02:18this is short diode.

02:20I have put this negative on this.

02:22I have put this on this.

02:24Let's check both of them.

02:26This is like this and this is like this.

02:28Both of these readings should be same.

02:30This is fine.

02:32The symbol inside this

02:34is black mark.

02:36See,

02:38the symbol of this is

02:40like this.

02:42The symbol of this is like this.

02:44This is like this.

02:46This is like this.

02:48And this is like this.

02:50This is like this.

02:52And this is like this.

02:54This is like this.

02:56Like this.

02:58This is like this.

03:00In the remaining,

03:02Now, let's see,

03:04my video is ready but

03:06let me tell you,

03:08how to check this.

03:10See,

03:12if we put this here,

03:14I have put this.

03:16I have given the reading.

03:18If I put this here,

03:20the negative will come here.

03:22The reading is same here

03:24and here also.

03:26This is the structure of this.

03:28And this is

03:30IGBT. You already know this.

03:32There is no problem with this.

03:34As we used to check earlier,

03:36I have started checking this.

03:38See,

03:40this is our

03:42IGBT.

03:44This is P channel.

03:46Now,

03:48it's turn.

03:50First, we will check

03:52IPM on continuity.

03:54This is shard.

04:00This is shard.

04:02This is shard

04:04from inside.

04:06Because of this,

04:08the light is full.

04:10Now, the way to check this is

04:12we have to see one more thing.

04:14See,

04:16this is also shard.

04:18Now,

04:20I will cut this.

04:22After cutting, I will check

04:24what is the problem in other board.

04:28See, I will cut this.

04:30I will cut this accordingly

04:32so that it will be attached again.

04:34So that there is no problem.

04:36See,

04:38you also see.

04:40I will put this

04:42from one side.

04:44Positive pin.

04:46See, I have opened this.

04:48Now, it can be easily attached again.

04:50Now, I will put this

04:52on series.

04:58See,

05:00the capacitors are charged.

05:02But, see,

05:04the lights

05:06are on.

05:08Capacitor is also charged.

05:10The lights are also on.

05:12This means

05:14that the

05:16IPM was shard.

05:18Now, I will check all other things.

05:20Then, we will

05:22get the right guess.

05:24We will know that there is no problem.

05:26See, it is discharged.

05:28Now, I will check the circle

05:30that the IPM and

05:32the microprocessor

05:34is fine or there is no fault.

05:36Now, we will check that.

05:38To check that,

05:40I have told you the whole method.

05:42Earlier also.

05:44But, now when

05:46IPM is E7,

05:48E7 has come.

05:50Now, I have opened

05:52the IPM and shown you.

05:54See,

05:56from here, see, it is shard.

05:58Now, the problem is

06:00that by changing our IPM,

06:02this kit will be OK

06:04and the error of E7 will

06:06be cleared.

06:08If you like my video,

06:10then like and share it.

06:12If any brother wants to take training,

06:14he can come and take training.

06:16If anyone wants to learn work, then he must learn.

06:18Because, this is the work of the future.

06:20This is a small work.

06:22This is not a big problem.

06:24You can also take training like this.

06:26After checking,

06:28there are many things that

06:30are under training.

06:32We will change this.

06:34After changing,

06:36the board is clear.

06:38You work on it.

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Transcript

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