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UM rebooting after heated bed upgrade

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i've upgraded the UM with the heated bed from Ultimaker.

now following happens:

if i start a print and the printer tries to heat up the bed, the ulticontroller becomes black and reboots.same happens if i try to preheat. so the printer alsways crashes if it tries to heat up the bed.

all cables are placed properly. no problem with the printer if i do not use the new heated bed.

any ideas what could cause this issue?

could it be a problem with the powerunit from the heated bed?

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Did you select the correct printer when you upgraded the firmware? I think I've read people having this problem when they accidentally selected ultimaker original plus.

Failing that, sound like maybe a short somewhere. Make sure the heater wires are not touching at all. I'd go over all of the wiring again and check it to make sure.

You can test the power unit theory. Simply remove the pigtail between the heated bed circuit board and the ultimaker power in plug (the wire that came with the HBK). Then use the separate UMO power adapter to power the printer, and the HBK power adapter for the bed only. I run mine this way with not problems. The point is, should show if there is a power brick problem.

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i've checked all cables about 10 times. there is def. no shorten circuit.

If i connect both power supplies, the machine does not reboot but the bed does not become warm.

i've re-checked the firmware and it says "Ultimaker original"

on the ulticontroller i can read the bed temperature which is nearly the same as the hotend.

the support tries to help me but afaik they also have no clue at the moment.

Edited by Guest

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