A Smile Daily notes on mechanical handwork
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I can't imagine that things in China are any different than here. I'd give you 3 of 4 odds there is nothing wrong with the "motherboard". I'd be checking all the connections and system switches first.
It took 2 hours to remove the old motherboard and replace it with the purchased second-hand motherboard. The first operation to replace the air conditioning circuit board was very laborious. It took a lot of effort because I did not know the structure, and now it has been replaced.
This is the broken motherboard. I took a picture
This is the broken motherboard. I took a picture
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Does it work now with the new motherboard?
Wait for one hour, start the test, U4 is displayed, check the fault code is a communication fault, according to the network query, power off and restart the fault code. Now we are gradually investigating the cause of the failure! I think it's minor. I'll keep you posted
After reset and test run, the fault code has been perfectly eliminated, and it is now running perfectly, thank you for your attention and support!
I think my skills have learned a little more about air conditioning, so getting more hands-on will only enhance your abilities!
I think my skills have learned a little more about air conditioning, so getting more hands-on will only enhance your abilities!
Before I changed the motherboard, I had tested that the fuse in the lower right corner of the motherboard was bad, but I still could not solve the problem after I replaced it, so I think the judgment of the maintenance worker should be correct, so I bought the motherboard. Facts have proved that the professional skills of the professional maintenance personnel are commendable, because they are friends, so he did not charge. Then I replaced the motherboard myself only cost 550RMB(about 100 Canadian dollars), if you buy a new motherboard, and then find a professional replacement, debugging, the overall cost of about 3500RMB(700 Canadian dollars), so learning to do it yourself will save a lot of money!
Still thank you for your reminding, I understand that the experience of an old technician will be correct many times, so I still hope to get more advice from you in the future!
This time to get a new experience worth celebrating, the air conditioning setting and debugging have a long time delay, so the need for enough patience to see the results after debugging, so be sure to consult the relevant professional information or need the relevant practitioner's advice and the corresponding patience.
So, the reason why I was a little overwhelmed in the first 1-2 hours after the replacement was because I had no experience in air conditioning and refrigeration.
So, the reason why I was a little overwhelmed in the first 1-2 hours after the replacement was because I had no experience in air conditioning and refrigeration.
No problem. I give advice freely and don't get paid for it so it's worth nothing.
If you replaced the old board disconnecting all the old connections and reconnecting all the new ones, how do you know the board was bad and not the connections? ..... Wink! Smile! Wink!
I didn't know you had advice from a practitioner. I'm glad you have a friend who could help save you all that money. Very few have that. I'm also glad it's working now.
Experience is the toughest teacher of all because she gives the test before the lesson.
My 7:24 shank (bt40/SK40) needed additional storage space after the lathe was removed
Empty a drawer in your locker Found a composite board
Measure the dimensions and mark the positio
Hole cutter punch diameter 45 (positive and negative punch)
Install in
Add a supporting foot in the middle
Cheap and economical tool support board -------It takes about 40 minutes
Compared with the handle storage rack made before, although it is beautiful enough, it can store more tool handles
Empty a drawer in your locker Found a composite board
Measure the dimensions and mark the positio
Hole cutter punch diameter 45 (positive and negative punch)
Install in
Add a supporting foot in the middle
Cheap and economical tool support board -------It takes about 40 minutes
Compared with the handle storage rack made before, although it is beautiful enough, it can store more tool handles
How did you make the nose taper?
I think you're talking about 7°7 '30 "taper machining? That's the job of moving the smallest plate at the right Angle!
Today, I moved and sold a lathe, although it is not willing to, but it saves space to make my production easier. Moving these heavy machinery made me sweat, happened to see a welding post, I also welded a small hydraulic pressure ear, or thick metal is easier to weld beautiful, although I do not know how fast the welding is
This is also why I like to use TIG welding, because most welding does not require sanding
This is also why I like to use TIG welding, because most welding does not require sanding
Start to make a glass canopy, using 120mm channel steel as the main frame, 100*50 square pipe as the main skeleton, and then use 40*40 square pipe as the glass installation split support.
Today the layout was completed and a small section of channel steel (or U-shaped steel?) was cut.
Today the layout was completed and a small section of channel steel (or U-shaped steel?) was cut.
Take some time today to start installing a shelter outside the door of the mechanical studio to prevent rain and wet
The early plans were lower, so there would be two concrete slots
This job is not suitable for one person, there should be several people to coordinate the best, so the work of one hour took one afternoon
The length record was wrong, cut it short, so I welded a little more.
Overall slope: 430:5, can make the rain flow smoothly
One afternoon only processing, installation of one, the workload is really a little less, I think if this work is afraid to starve
The early plans were lower, so there would be two concrete slots
This job is not suitable for one person, there should be several people to coordinate the best, so the work of one hour took one afternoon
The length record was wrong, cut it short, so I welded a little more.
Overall slope: 430:5, can make the rain flow smoothly
One afternoon only processing, installation of one, the workload is really a little less, I think if this work is afraid to starve
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I love your granite pavers and the wooden lawn slats. They make your outside seen very peaceful.