Haier Dc Inverter E7 Error code raat ko or thandaa mausam ma ata ha #194

Babar Electronics HVACR

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Transcript

00:00Assalam-o-Alaikum

00:02This is a Hire Kit

00:06The problem with this kit is that

00:08It operates perfectly

00:12At night when the weather is cold

00:17It gives an error of E7 in cold weather

00:21It is not necessary that it should be rainy or cloudy

00:25It gives an error of E7 in cold weather

00:29And it turns on when the weather is good

00:33Let's open it and see what is the problem

00:37It works like this

00:41There is no problem with it

00:45If there was a problem, it would not have turned on

00:49Let's open it

00:55This video will be a little long

00:59But you have to watch the whole video

01:03Because if you watch the whole video, you will definitely benefit from it

01:07We have locked the whole system

01:17These are the jacks

01:21This is the communication wire

01:25This is the AC

01:29There is no fault in the system

01:33Let's see why there is a fault

01:37Let's see why there is a fault

01:41Let's see

01:45Let's see

01:49Let's see

01:53Let's see

02:01Let's see

02:13Let's see

02:19Let's see

02:31Let's see

02:35The problem with this is that the E7 comes because of the SMPS supply, and there is a feedback system in it, which is a sensor here.

02:51Actually, the ambient temperature sensor is its fault, because it does not match with other sensors.

03:01When the weather is cold, it turns on in the afternoon, and when it is evening or late at night, it does not work because of the cold weather.

03:11Because of this, the E7 comes. Let's check if the supply is good or not.

03:18First of all, we will check if it has auto supply or SMPS supply.

03:30First of all, we will check if the SMPS supply is good or not.

03:35After checking the SMPS supply, I will check if the communication is good or not.

03:45First of all, we will check this.

03:47See, I have turned it on in series.

03:50By turning it on, you can see that both the lights are not blinking continuously.

03:56Now, the SMPS supply voltage is coming.

04:02First of all, we will check this.

04:04As you know, there is a round in the center.

04:07I have already made a video on this.

04:09If you see this video on E7, you will say that this is the same video.

04:13I have made 10, 15 or 20 videos on this.

04:16See, it is coming at 5 volts per meter.

04:18I will keep this meter here for you.

04:23See, you will see the meter here.

04:25You will see both the things.

04:27First of all, we will check here that we should get 5 volts here.

04:31See, it is coming at 15 volts here.

04:34This means that our SMPS supply is absolutely fine.

04:38There is no problem in this.

04:40The problem is that it comes at night in E7 or in cold weather.

04:45This is the problem.

04:46The main problem is that E7 comes at night.

04:49We will do this now.

04:51See, I have removed the switch.

04:53And I am doing this.

04:55See, discharge.

04:58I have discharged this.

04:59I will tell you one more thing.

05:01If you ever do this after discharging, then never do this.

05:07Because see here, even after discharging, there are still some voltages left.

05:13Which can cause us harm.

05:16Which you will do.

05:17Okay, see this.

05:18Now, if possible, you have to discharge it completely with a page or a tweezer before working.

05:24After this, when you work on it, now there is a problem in it.

05:29There is one more thing.

05:30Let's check that too.

05:31I forgot.

05:32See this.

05:33We will do this.

05:34We will check it with DSO.

05:35That our pulse is coming in this.

05:39And on top of it, supply.

05:41I did this on again.

05:43It has 5 volts.

05:44And see, you should also get voltage on it.

05:47See here.

05:48Okay.

05:49This voltage is coming.

05:501.5 volts is coming here.

05:51See this.

05:521, 4, 18 volts.

05:53And here the voltage will also be made of it.

05:55See this.

05:56Okay.

05:57See this.

05:58Okay.

05:595 volts.

06:00Voltage is also coming clear on its couplers.

06:01It is fine on the couplers.

06:02But the purpose of the voltage is not that it will be fine.

06:06We will have to check this with DSO.

06:08Because the pulse in it is getting out or not.

06:11If the pulse is not getting out, then E7 will come in it.

06:15Okay.

06:16E7 will definitely come in it.

06:17Now I will also show you this pulse by checking it from here.

06:21Okay.

06:22I have put it here.

06:25See this.

06:26And see this from here.

06:27See this.

06:28See this.

06:31This kit is coming.

06:32This pulse is coming from here.

06:34This kit is absolutely fine.

06:36100 percent this kit will be on.

06:38It will work.

06:39Because the pulse is getting generated.

06:41Voltage is fine.

06:42Pulse is getting generated.

06:43This means that we have to check that it will be absolutely okay on the compressor.

06:47The kit will work.

06:48Now the problem is the same on which we will work.

06:51That E7 comes after some time.

06:57Usually at night.

06:58Okay.

06:59Now let's do it again.

07:00Let's throw this charge thing now.

07:02Let's repair it.

07:04See this.

07:05These capacitors are installed in it.

07:07And after this SMD.

07:09First of all, we will check these capacitors.

07:11Whether our capacitors are okay or not.

07:14They will have to be checked first.

07:16Because if any one of them becomes weak.

07:19Then this sequence starts.

07:21Because the problem you.

07:22Because when this error comes.

07:25Then the problem is that at that time.

07:27Whatever sensor is installed.

07:30They do not match each other.

07:32One sensor system is that the compressor is running.

07:35The other is running.

07:36The third one is according to the cold weather.

07:40Because if you are the thing yourself.

07:43Then its circuit is made at one level.

07:45Now let's check what is the problem in this.

07:52You can see the meter is with you.

07:54Whether it is good or not.

07:55Let's put it here.

07:56Let's see the meter near you.

08:00Both things are here.

08:09See this.

08:10Capacitor should have been zero by charging from here.

08:14See this.

08:15This is not happening.

08:29See this.

08:38This capacitor has a problem in its capacitor.

08:41See this.

08:42All its capacitors.

08:43Let me discharge it once.

08:45Let's see if there is any problem in it.

08:56See this.

08:57Okay.

08:58See this.

08:59When there is a problem in the capacitor.

09:02See this.

09:04See this.

09:05There is a problem in the capacitor from here.

09:08Let's change this capacitor.

09:10Let's change it.

09:11Let's see what is right or wrong in it.

09:15This capacitor is broken in it.

09:18This problem comes because of the capacitor.

09:21If the capacitor is weak or broken.

09:23Then this problem comes in it.

09:25The reading of this capacitor should be zero.

09:28It is not happening.

09:29Now we will change its capacitor.

09:55See this.

09:56We have done it.

09:58Now let's do this also.

10:00Let's show it by passing it.

10:11Let's show this DSO also.

10:13It was said that which model is this.

10:15Let's pass it and show the model.

10:17Let's promise them.

10:18So that they can check the DSO.

10:21Which model is correct.

10:22Okay.

10:25Okay.

10:36Now our kit is okay.

10:38Okay.

10:39Now we can give this to the customer.

10:41There will be no problem in it.

10:43And neither this problem.

10:45Because the capacitor which I have changed.

10:47Its two.

10:48I can test both these capacitors again.

10:51The capacitor was broken in it.

10:53One was short.

10:54One was short.

10:55One was weak.

10:56One was dead.

10:57One was short.

10:58One was dead.

10:59Because of this, this problem was coming in it.

11:00Now our kit is okay.

11:01Now whenever the weather will be cold in it.

11:03Because of them.

11:04E7 error will not come.

11:05Although E7 error.

11:06Communication error happens.

11:07Communication.

11:08When communication is over for any reason.

11:09So E7 error has to come.

11:10You must have understood this.

11:11I think well.

11:12If you like my video.

11:13Then like it.

11:14Subscribe to our channel.

11:15Share.

11:16If any brother has to learn work.

11:17Then you must have understood.

11:18If you like my video.

11:19Then like it.

11:20Subscribe to our channel.

11:21Share.

11:22If any brother has to learn work.

11:23Then you must have understood.

11:24If any brother has to learn work.

11:25Then you must have understood.

11:26If any brother has to learn work.

11:27Then you must have understood.

11:29With this.

11:30Our kit is ok.

11:31May god protect you.

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