PSU problems on a10

[gopher]

Hello everybody!

I've bought my a10 printer in the beginning of may 2020.

For no reason my psu started to make some annoying noise and the red light of the input power switch started to flashing? but the printer was working.
And there passed about 5 minutes with such noises and then nothing - it stopped, psu failed to deliver power(

I wanted to figure out what happened and disassembled the psu with switch block.

power switch input and output sockets

power switch.jpeg (89.34 KiB) Viewed 7326 times

I have measured the input voltage on the switch input power sockets - and it wasn't 220V AC - it was just 17V AC.
On the output sockets there was the same voltage.

Then i wanted t know whats with the psu and i have delivered power of 220V AC to it without switch. And it works fine and the output voltage of psu was 24V DC.

psu works without power switch

psu.jpeg (129.1 KiB) Viewed 7326 times

How should i contact the salesman to solve this problem? It's not comfortable to deal with printer without power switch

[gopher]

I have found the fuse in this switch, and it has done it's work

fuse burned out

burned fuse.jpeg (80.79 KiB) Viewed 7322 times

Thanks!
Maybe my post will be useful for somebody

[William]

thanks for sharing！

[gopher]

Hello, William!

The second time for about 6 monthes my psu input switch fail: first time the fuse was burned, and now the switch on button failed. I've checked the input power from the fuse, it's ok, but no matter in what position the power on switch is, it isn't delivering power to psu.

Whom should i contact to solve this problem?
I think that the input switch is defective...

Thanks!

[gopher]

Awful service!
About 2 weeks ago i wrote here and to the geeetech service - no answer at all

[gopher]

Will be here any reply from geeetech?
I've already wrote to customer's service - and no reply too.

[gopher]

Great service!