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Hello guys, in this video I am showing the repair of the PA21G purifier that was heating the water (cold water coming out hotter than natural water).
I make it clear that causes of the problem solved here may not be the same as the problem in your filter.
I had already repaired a purifier of the same model a few months ago, also with less than a year of use. After researching a little about it on the internet, I could conclude that this product is one of the famous cases of "cheap that comes out expensive".
Why didn't I take in technical assistance ?!
- Because I don't know if they'll do a good job. They can fix an apparent defect and neglect a more complicated or expensive one that will appear in the future when it is out of warranty.
- They can just invent some reason for the guarantee not to warranty and ...
- Worst of all: The filter would stay weeks, maybe months there "waiting for parts", so I would have to buy a new one to use in that time. If you are going to buy another one, then it is more interesting to throw it away. It is obviously not my intention.
So I thought it best to try to fix it myself.
Subjects covered in the video:
- Disassembly of the filter: 01:46
- Disassembly, lubrication and fan test: 16:00
- Disassembly and maintenance of the peltier insert: 22:06
- Peltier insert test: 24:56
- Replacement of thermal paste and assembly of the cooling system: 27:10
- Final cooling system test: 30:28
- Filter assembly: 32:29
Conclusion:
1st Problem: Fan that was practically without lubrication, with the gears hardened, he could not make the necessary air flow pass to cool the heatsink, after lubricating the fan the water stopped heating up but still did not cool, with that I imagined that the peltier insert could have been damaged by the fan's failure to cool the heatsink, which led to the next problem.
2nd Problem: After testing, I saw that the peltier insert was working, however, on both sides of the insert there was little low quality thermal paste dried on surfaces full of irregularities (heatsink and box), coming from the factory. After cleaning and replacing it with a thermal paste of good quality and quantity, the filter cooled again normally.
Questions, criticisms or suggestions, send an email to:
niobiumlab@outlook.com
Visit website:
www.niobiumlab....
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