Refrigerator powered the whole maintenance process。
What's the problem with refrigerators that don't cool? The problem is not difficult, either, with thermostats, starters, computer boards, compressors leaks that lead to non-refrigeration. What makes you not cool? I'm going to use the files of this refrigerator behind me to see how it's going to be maintained and how exactly it's going to be。
• first, open the cooling doors and look at the temperature adjustments in the freezer, which is now moved to the second stage, making it clear that the temperature transfer is correct here。
Why doesn't it cool? Take a look at the back of the compressor. First take the screws off these sides, and then take off the backboard, and you can see that's the structure inside, and this is the respirator, and this is the compressor. The compressor's backpipe is normally cold, the backpipe is cold, the tube is high pressure, it's hot。
The compressor listens to whether there's a sound, there's a buzz, there's a buzz, but it's not cool. We're going to cut off the process and see if there's any freon in it. The processor had cut it off, but there was no freon and no refrigerant。
Cut this side and see how it's venting. The compressor's exhaust cuts the place off, and then try the compressor's exhaust later. After a simple test, it was found that the exhaust was very good, and obviously it was leaking。
Is it high pressure or low pressure? The pressure sheet should then be attached to the pressure sheet to see if it's a high pressure leak or a low pressure leak。
If you know if it's missing, is it high pressure or low pressure? Two pressure meters are to be attached, the pressure is to be separated from the pressure, and then the pressure is to be protected for 24 hours, so only where the leak occurred can be known。
• pressure is now applied to 1. 5 mpa at low pressure and 2. 0 mpa at high pressure. Take a look at the pressure table, the pressure's still at 2. 0. The pressure's gone, which means there's a leak. What about the leak? It is then necessary to open the back, open the iron, and find the missing spot to solve the problem。
Why are you sure it's a leak? Check out the freezer room, where there was no rust in the pipe, which was 100 per cent a problem in the back, and leaks in the back. Then we'll put the fridge down, we'll break the backboard, we'll remove the iron, we'll find the leak。
How do you know where it went? It's simple. Find the airpipe. It took a while to dig up the foam here and finally find the missing spot. This is it. This is it. This is it. We can't make it up, we can't replace it with another tube。
Next, the tube was replaced with an aluminium tube, which went down directly to the compressor. Let's see how to change it. It's an aluminum and aluminum welder. That's how it's smooth. The following interface is a copper aluminium welder, which is also smooth and repeatedly checked for pressure tests. That's it。
Now it's back, then it's back to filling up the foams, filling up the fillings and pressing back the iron. Now it's time to clean up the pipes and clean up the pipes, which means that both the water and the oil in them are cleaned up, and if they are not cleaned, the effects of the entire refrigeration system will deteriorate。
So it's very simple now that the dry filters must be replaced, the pipes should be restored, and the rest of them should be vacuumed and refrigerantd, and the refrigerants needed to observe the stopovers, see how they worked and see how they worked. Refrigeration room 18 degrees, minus 18 degrees, refrigeration room 8. 6 degrees, very effective. It took the fridge a little time to observe, and it was perfectly normal to stop。
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