#238 Haier DC inverter AC E7 error code #AcE7error

Babar Electronics HVACR

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Transcript

00:00Aslam o Alaikum, this is a higher gate sent by E7 Airline from Karachi.

00:10See, they sent this from Karachi.

00:13It came like this. Now we will open it. There was another cover on it.

00:18But we removed that. Now we will open it. Let's see what problem they have sent.

00:30It's very hard to open it.

00:46They have packed a lot. How did they do it?

01:09These are the sensors and this is the new model of PCB Air.

01:15They have told us the error of E7.

01:18Let's see if there is anything burnt in it.

01:25They have soldered this.

01:31They have soldered this too.

01:36They have soldered this too.

01:40The gate is very good. It's a new condition gate.

01:44Now let's check the error of E7.

01:51Let's check it cold first.

01:53Later we will give voltage to it.

01:55Let's check the IGBT and short gear diode.

02:21Let's check the IPM.

02:27Let's check the diodes.

02:35Let's check this diode.

02:39Let's check the IC.

02:47Let's check the number of the power IC.

02:54Let's check the number of the power IC.

03:03Let's check the number of the power IC.

03:32Let's check the number of the power IC.

04:00Now let's open the heatsink.

04:04Give me the screwdriver.

04:16Now we have removed the screw.

04:19Now let's open the heatsink.

04:22This is the heatsink.

04:23It's very clean.

04:26Let's put it aside.

04:28Now let's check the IPM.

04:32You have to check the low and high side of the IPM carefully.

04:36I have read a lot of movies on this.

04:39You can also check it.

04:40You can also check it.

04:41You can also check it.

04:42So that you know how it is checked.

04:54This is fine.

04:57Now let's check here.

05:00Now let's check here.

05:05Now let's check here.

05:30Now let's check here.

05:44Now let's check here.

05:45Now let's check here.

06:05Now let's check here.

06:35Now the high side was safe

06:37Now the high side was safe

06:42and it was showing that the macro processor is flawed.

06:55that the macro processor is flawed.

06:58that the macro processor is flawed.

07:00I will check it to see if it is working properly.

07:05So that we can be more assured.

07:09Yes, it is working now.

07:12The microprocessor is not working properly.

07:28I have checked it from both sides.

07:31The microprocessor is dead.

07:34There is no point in working on it.

07:37It is not necessary that every kit has to be repaired.

07:41If there is any fault, it cannot be repaired.

07:45The main purpose is that you should know how to check things.

07:52What am I looking at?

07:54From where am I checking?

07:55How am I checking?

07:56And how will I know that there is a fault in this kit?

08:01If you like my video, then like it and subscribe to the channel.

08:06If you want to do any kind of training, you can do that too.

08:10Goodbye.

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Transcript

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