Meanwell Switching power supplies intermittent every capacitor under 100uf

[sam_sam_sam]

Well last night had a huge brain fart I was in the process of recapping one of switching power supplies and there are 0.47uf and 4.7uf and 47uf capacitors well in stead of a 4.7 I put a 0.47uf in that slot and I did the same thing with the 47uf I installed a 0.47uf of course it would not work

It is a good thing that I use an 60 watt incandescent light bulb and a electronic fuse the first time I power up these switching power supplies in I screwed up or there something else wrong that I do not know nothing about

One note these switching power supplies will not work correctly on a 60 watt incandescent light but is dose cycle the incandescent light bulb on and off several times and then will power ON with the green light on the switching power supply momentarily and then cycle OFF and then repeat with the same sequence over and over again I will let it do this several times just to make sure that it will power up then remove the incandescent light bulb and see if it will work correctly or not

I tested the the switching power supply that had the bad ceramic capacitor that had crumpled apart I took it off of the one that I had a brain fart on because one of the switching power supply had one bad main filtering capacitor on it so I was using the two good ones that when I noticed that I really screwed this recapping job up wow

I know how this happened I have a hard time reading the very small print on these capacitors so I am not surprised that this happened

Later on today I will post weather or not the one that I had a brain fart works correctly or I did correct the mistake that I did make

[CapLeaker]

Can we see some pics of the limping PSU?

[stj]

0.47 electrolytics?
why the hell didnt they use film caps!

[CapLeaker]

There is no way replacing 47uF with a 0.47uF capacitor and expecting it to work. lol.

[sam_sam_sam]

I thought you guys would find my brain farts funny that why I wrote a post about my screw up

I do not know if I going to be able to move the capacitors from one power supply to the other power supply today because it started raining and it getting late and it also getting dark outside and I do not stay up late on Sunday night because I have work tomorrow morning or at least that’s the plan anyway

[CapLeaker]

Got the same problem. Friggin work gets always in the way with the fun stuff. Been hunting today on a replacement fence for my table saw. You’d think should be easy. Waster all afternoon. lol but I did manage to find one from the west coast.

[sam_sam_sam]

Update on the switching power supply that I had a brain fart on

After replacing the capacitors of the wrong UF value it powered ON and seems to work fine I will do a burn in test tonight and see if everything is working correctly and post the results tomorrow

running for about an hour and everything seems okay

Okay the switching power supply that I had the brain fart is working again without any issues so I consider it repaired and ready for service again

So this is the fourth one that I have recapped but I am running out one of the capacitors that is 100uf @ 50 volts I have some that are 35 volts but I would prefer to use 50 volt one instead

Also I need redo the 0.47uf capacitors because they stand up to high and the cooling fan blades are hitting them because of a resistor is under where the capacitor could sit flush with the circuit board so I going to lay them down some what flat so this is not an issue anymore because the original capacitors are short in height

[sam_sam_sam]

Update on the switching power supply that I had a brain fart on

After replacing the capacitors of the wrong UF value it powered ON and seems to work fine I will do a burn in test tonight and see if everything is working correctly and post the results tomorrow

running for about an hour and everything seems okay

Okay the switching power supply that I had the brain fart is working again without any issues so I consider it repaired and ready for service again

So this is the fourth one that I have recapped but I am running out one of the capacitors that is 100uf @ 50 volts I have some that are 35 volts but I would prefer to use 50 volt one instead

Also I need redo the 0.47uf capacitors because they stand up to high and the cooling fan blades are hitting them because of a resistor is under where the capacitor could sit flush with the circuit board so I going to lay them down some what flat so this is not an issue anymore because the original capacitors are short in height

I forgot to put the disk capacitor and I was using the heater element in series instead of the fuse and now it will not start up again but I have not had time to move this capacitor to this board and retest it again