Bed not lowering all the way to the limit switch after calibrarion

[elditch 0]

Hi I've just got my ultimaker 2 extended out of storage and now the bed won't raise up to the novel.

 When calibrating the bed I moved the bed up to the nozel zeroed it then it wouldn't return to the z limit switch and got an error 5 message.

 I've tried a factory reset and updati g the firm ware and I haven't got a fan plugged into the 8/16 jumpers and am at a loss of what to do next 

 Any help would be appreciated 

[gr5 2,176]

1) So during calibration it goes all the way down just fine?

 

2) Did you read this article about ER05?  https://support.ultimaker.com/s/article/1667411295373

 

3) Go into the firmware version screen.  Under advanced maybe?  Look around and there is a screen that shows the version number and name of the firmware.  Make sure it says "ext" in the firmware name.  If not maybe you have the UM2 plain printer.  Also make sure there is no "+" in the firmware name if you don't have the UM2+ext and just have the regular um2ext.  (plus has white feeders, regular has black feeders).

 

 

[elditch 0]

no it stops about 3/4 of the way down and says it cant find the limit switch

 

i know there is a solution to it because i did it before but i cant remember what i did.

 

 

[gr5 2,176]

Please answer my question number 3 above.

 

A) You may have the wrong firmware and it thinks you have a um2go.  Question 3 above answers this.

B) You can try a FACTORY RESET which is an option in the menus.  Sometimes the distance to move down before giving up gets corrupted and factory reset fixes it.

C) The steps/mm may have gotten messed up.  FACTORY RESET fixes this

D) You may have plugged the fan cable into the wrong place on the PCB under the printer - there is a place for a jumper which makes the Z axis move 2X slower so the Z axis is moving at half speed and half distance desired.  Did you remove the fan cable and then maybe put it back on in the wrong spot?

[gr5 2,176]

Also I usually only follow a topic for one week so if you wait another 2 weeks again before replying, 99% chance I won't see it.  So send me a direct message if you reply more than a week from today.