#104 Haier F7 Error code Haier Dc inverterAc F7 Error code problem solution

Babar Electronics HVACR

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Transcript

00:00Assalam-o-Alaikum, today we have this kit for repairing, the problem is that F7 error is

00:22coming in this kit, this kit is Hi-P, and we are checking it by running it, now I am

00:28giving voltage to it, how does F7 error come, how does it come, how can we remove it,

00:36fix it, I will tell you all this today, this is its display near us, I turn it on, now

00:43we will see on the display that which error and how it comes, we have installed this motor,

00:49this is outdoor, this PCB, everything is open here, just to see which fault, because of

00:56which fault, it is giving F7 error, this is Hi-P DC Elevator, now I have started to

01:02turn it on, now when it will be on, then you see, at the same time, this one, see this

01:09kit, we have turned it on, see this, we have set it to 16 temperature, and this 28 temperature

01:16is our ambient temperature, where we are sitting, the temperature here is 28, the camera is

01:23showing 28, see the motor is turning on, this light is blinking, see this light is coming,

01:29now we will see that the communication is clear, whether the communication is happening

01:34or not, let's check this too, but now F7 error will come, but this communication will

01:42be like this, like other kits, see this, F7 error has come, but this communication is

01:51proper, communication is happening, but F7 error is there, this F7 error is, which is

02:01showing on the display, this is the error of section temperature sensor, now we will

02:09turn it off, now I have turned it off, now after turning it off, see this sensor is there,

02:17there is one more video on sensors, which is related to all sensors, what is written,

02:22which sensor is there, how to check, you can see that video, but now we know this, this

02:27red color sensor, this sensor is ours, this is the section temperature sensor, in this

02:35three pins are there, but these two wires work here, one is empty from here and another

02:42is not connected from there, now let's check this 12 or 13, 15K, how many K is this, and

02:48see this is bad, I have set it to 20K, now when I started checking it, see how many K

02:56is this, I will show it here, I will show it to you, see I have put this wire here, how

03:06will it be here, here and I am putting another wire here, see when I put these two wires,

03:15it is dead, this sensor is dead, that's why it is showing F7 error, now two things have

03:23come in this, one is that we have come to know that our sensor is dead, but sometimes

03:32you will also see that your sensor will be fine, but still F7 error will come in this,

03:37what you have to check in that, like this connector is installed here, so it can't

03:42be wrong here, it looks like this, the pin on this side has three pins, the pin on this

03:49side is not connected, this is the second ground and this is the pin of this current,

03:54voltage comes here, we will get 5 voltage here, if for some reason 5 voltage does not come

03:59here, or you can check its variation on this DSO that how many pulses are there, you can

04:04also see this, it has pulses, you can check this, if you don't understand this, then

04:09you have to see 5 voltage DC, if DC is coming, then the sensor is apparently bad, if you

04:15are not getting 5 voltage here, then you have to do this, you have to see it, it is a circuit,

04:20you have to trace it, if it doesn't come, then it is a shortage from the microprocessor,

04:25because of which these 5 volts will not come here, you can check it, there is a slight

04:30difference in every model, something or the other, but this is the way to check it, if

04:35you check it here, that 5, now I check that 5 volts are coming here, 5 volts are coming

04:41here or not, see our kit, I have put it here, now it is on, it will be on in the same way,

04:46there is no difference in the same way, where I have seen, now the temperature has increased

04:51here, it has increased, now I will pass it here, you have to show both things here, see

04:56them, I try that you can see both things well, this is one, this is one, this is one, this

05:01is one, this is one, this is one, this is one, this is one, this is one, this is one, this

05:06is one, this is one, this is one, this is one, this is one, this is one, this is one, this

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