Got it fixed
I saved my config.g bed.g home, pause and resume files and put completly fresh files on the sd card
and still same problem. i tripple checked all files for spelling errors etc an wrote files from scratch but nothing helped
after that a friend said why dont you try mesh again just to see if that one works
i reenabled mesh in config.g (M557 X30:311 Y22:295 S20) ran it once and the problem was gone
Thanks for your fast reply - i already deleted that file
Seems like i have to reinstall the firmware
Hi,
i recognised that my leveling was off and run it manually to see whats up.
under the map it says 4 probed points but on the image i see 6 points
https://imgur.com/a/4ElFW
i never added those mid points and cant get rid of them. cant get it to level again
Before you ask why im not using mesh level - got problems with my pei sheet and consistancy on dc42 ir probe
my bed is really flat and the 4 corner method worked perfectly for me.
is there any way i can delete those
bed.g
M561
G30 P0 X30 Y22 H0 Z-99999
G30 P1 X30 Y295 H0 Z-99999
G30 P2 X311 Y295 H0 Z-99999
G30 P3 X311 Y22 H0 Z-99999 S
Firmware Electronics: Duet WiFi 1.0
Firmware Version: 1.20beta7 (2017-11-11)
WiFi Server Version: 1.20b8
Web Interface Version: 1.19.3
Thanks for your reply
i got it from https://www.duet3d.com/
Im a little disappointed not getting any "official" support here…
Website says better use forum instead of writing mail - dont want to return the board - prints really good - but allways turning the fan on per hand sucks
i'll try mail tomorrow 
disconnected
is there any kind of support ticket i can open for this - im about 80% sure the board is faulty
you can send like M106 S0.5 which is 50% PWM 0.6 = 60% and so on
but i tried 255 with the same results
Problem is that i cant get port 0 working like the other two (with same commands) -switching it of S0 gives 0 volt
ON gives 3.x volt
Hi there,
first of all thanks for this awsome piece of hardware !
And please excuse my bad english 
I recently set up everything and got it running after a few tweaks.
But im running into a problem, not being able to control the fan 0 port
Others work just fine… M106 P* S1 (Same Fan used for testing on all ports)
When i measure those i get stable 24v from other ports but on port 0 only 3.2 -3.5
because i need some prints to switch to my new printer i tryed to remap P2 to the extruder/tool 0
M563 P0 D0 H1 F2 ; Define tool 0
but i doesnt work (even when tool is active)
Manual M106 P2 S1 works...
I double checked if fan is in temp control mode or inverted but its not.
FAN Conf:
M106 P0 S0 ; (supposed to be Partcooler)
M106 P1 T45 H1 ; (Hotendcooler)
M106 P2 S0 ; ( spare part cooler - but cant get it running with remap)
may my board be broken ?
im thankfull for any advice or help
greetings from germany
Benny