S-180-12 PSU Failiure

[DQW]

First check if you have the L/N/G cables correctly connected,then check the 110V/220V switch on the PSU.

This I already did with first malfunctioning and second malfunctioning psu.

The next move is to unplug the board from the PSU and measure the AC input and DC output with a multimeter.

Do I measure the PSU or the Board? (How and where do I do that with my multimeter)(And does it have to be on or connected to the electric network?)

Thansku

[Cup]

I mean the PSU(remember to unplug the board from it).
AC input is the voltage between "L" and "GND",check this post:
http://www.geeetech.com/forum/viewtopic ... 18&t=18061

[walterfantauzzi]

Hi Guys,

My PSU work only one day. Today it doesn't work. The Green Led is off!

I'm Italian and we have 220V I see inside the holes and I see the switch is correctly set in 220V.


So why it doesn't work??? I have read of many people who complain about this Power Supply Unit issues!


https://drive.google.com/open?id=0B5uIi ... Up4a3NvR1E

[William]

Hi Guys,

My PSU work only one day. Today it doesn't work. The Green Led is off!

I'm Italian and we have 220V I see inside the holes and I see the switch is correctly set in 220V.


So why it doesn't work??? I have read of many people who complain about this Power Supply Unit issues!


https://drive.google.com/open?id=0B5uIi ... Up4a3NvR1E

Maybe the PSU is dead.
Just replace it with a new one.

[walterfantauzzi]

Hi Guys,

My PSU work only one day. Today it doesn't work. The Green Led is off!

I'm Italian and we have 220V I see inside the holes and I see the switch is correctly set in 220V.


So why it doesn't work??? I have read of many people who complain about this Power Supply Unit issues!


https://drive.google.com/open?id=0B5uIi ... Up4a3NvR1E

Maybe the PSU is dead.
Just replace it with a new one.

Yes the technical support reply to me in PVT by email. The PSU is dead! So I would like to let you guys that me and a my engineer friend measured the current absorption with a current meter about the Prusa i3 MK8 and we've seen that it is higher than the 15A delivered by the PSU. The supplied PSU is underdimensional!

[BrianR]

Thanks for the clarification! Got it working.