I purchased a VEVOR air compressor exactly two years ago, have used it twice. I went to use it the other day. I attached it to my gun, Made sure the bleeder was closed. I turned it on, let it warm up, then turned on the compressor, in about 15 seconds everything shut down. Has not started since. Any thoughts of what it might be?
Vevor air compressor
- Thread starter ejplinkerton
- Start date
Don't think this is the problem but recommend leaving that bleeder open till after compressor starts. I'm sure you've verified power still coming to wall outlet. WM
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There is a fuse with checking.
Did it let the smoke out? Smell burnt?
Mine failed the transformer twice under their fake warranty.
Did it let the smoke out? Smell burnt?
Mine failed the transformer twice under their fake warranty.
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The unit is a black box with VEVOR on the top, It has a small external silver power box attached with a power cord to outlet. I would love to find the fuse.
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Sounds like dead power supply, mine runs hot as hell. These things tend to use the XT60 plug and usually include a 12v battery clip, id try that.
Its a $20 cheap switching power supply that gets hot. Often they have a minimum load requirement or else they tesla coil themselves to death. If I added a switch to the fan on my compressor my power supply might die early if left idle.
Its a $20 cheap switching power supply that gets hot. Often they have a minimum load requirement or else they tesla coil themselves to death. If I added a switch to the fan on my compressor my power supply might die early if left idle.
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I posted some photos showing replacement of a thermister on one of my power supplies, and the fuse should be obvious. If you cannot find, let me know and will post them again.
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Thanks for the idea ... I just tried to connect the main black box to a battery with the jumper cables that comes with the unit and it worked ... so obviously the small silver external power supply box that plugs into the wall is the culprit.
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I can't find my Thermister repair post so will do again. If something is not clear or more information needed, let me know. The more patient and helpful we are, IMO, the better off we all are.
I will show the thermister photos first, then find some better of the fuse, it needed.
Here's the blurb:
My Nuong compressor's power supply failed (*The Nupong is a clone of GX CS1 and a zillion other shoebox compressors).
I have a spare power supply, but of course I wanted to fix the problem.
A lucky flash of red showed that the NTC 5D-15 negative thermister in the input stage was failing.
I ordered these off Amazon, so will only need to remove the circuit board and solder in a new one.
Let's see if crowing early leads to glory or egg on my face.
BELLIFFY 5d-15 Negative Temperature Thermistor 20pcs Kit Electric Appliance Temperature Sensor Thermistor Resistors Thermal Resistance Set
I have a short video, showing the other side of the fried one, but the one in my spare shows the thermister better.
The fuse is circled in orange in the second photo. It is to the right of the fried thermister.
I suspect that the thermister will be a failure point.
When I convert one of these power supplies for other uses, I often manually blow the Buss (glass) fuse and solder leads to an external ATC or Mini Fuse holder in order to place the fuse outside of the case. I have encountered only one or two blown fuses in 10+ years of using these power supplies, so they aren't a high failure item. If I recall correctly, these power supplies are self limiting in terms of voltage and current.
The little potentiometer with its yellow dial is to the left of the wire terminal strip, it adjusts the output voltage which can often be increased to nearly 15 VDC. Electric motors tend to like higher voltage so I generally try to have the voltage in the 14.6 VDC range, which is typical motor vehicle charging voltage.
Please let us know how you make out, and if there is anything more we can provide.
If you need to remove the circuit board from the case, the power transistors, or might be MOSFETs (can't recall off hand) are clamped to the heat sinks. If that's not obvious, let me know.
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Those external power supplies can be had pretty cheap on Amazon or the Bay.. Just do a search and grab one up. That's probably the lessor of the evils.
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+1
Plus, have a look at the black disk, thermister to its left as in my post above. They are easy to replace if the problem.
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Thanks ... what is upsetting is that I used the dang thing only twice. It looks like it has been used twice as well. The fuse looks good. I can see the wire going through the middle of the glass. Thanks for the info to get another one.
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