Resetting the 3d printer while printing

[Phaedrux]

Can you post a photo of the Duet board where you have the bed wired?

It's only a 24v heater?

[Kevvv]

@phaedrux




[Phaedrux]

Can you remove the SD card from the Duet and power it on? Does the heated bed still heat up immediately?

[Kevvv]

@phaedrux

Led is always on.

[Phaedrux]

I think the mosfet has failed in the on position. If this is the case a warranty replacement would be required. When and where did you purchase the Duet3?

[Kevvv]

@phaedrux
I bought it on August 4, 2020, in the Hobbystore store in Poland (he is your distributor).

[Phaedrux]

When did the bed heating issue begin? Did it ever work correctly?

[Kevvv]

@phaedrux
I connected the bed heater a few days ago but this is my first attempt with this heater and I noticed that the diode is on all the time.

[Phaedrux]

Please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out.

[dc42]

@kevvv before you return your board, please disconnect the bed heater from it, then power up and check whether the bed heater LED still turns on immediately. If it does then return the board for replacement. If it doesn't then you have a short circuit between your bed heater and ground.

[Kevvv]

@dc42

Led is always on.