Both heaters not heating

What is the problem?

I have been printing for a long time, but all of the suddon my printer disconnected, didnt know why so i restarted.
After that very quick another shutdown with error:
"Unhandled communication error The was an unhandled error while talking to the printer. Due to that OctoPrint disconnected. Error: Heating failed, system stopped! Heater_ID: 0"
My bed or extruder won't warmup anymore and this error keeps popping up and shutting down my connection.

What did you already try to solve it?

Checked the heater on bed, normally a see lights burning when the bed is warming, no lights now.
I have mosfets, they light up so they are trying to warm.

Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, what kind of hardware precisely, ...)

It's an Anet A8
I use octoprint over my network, have a psu, mosfets, e3d extruder in bowden.

Here is the log:

octoprint.log (63.1 KB)

Hello @Saver !

Is printer's menu lit up?
Can you move the printhead/bed around from the printers menu?

Is there a fuse on the printer's control board, maybe it blowed out.

Is the printer's power supply properly connectef to the mains?

1 Like

Yes, i can move the head with the octoprint software and the printer menu.
The board lights up when i try to heat so it is giving signal and working.

octoprint.log (63.1 KB)

You have a quite old OctoPrint running there.

You have an Anet A8. On that printer control board there should be a fuse. You may check the one.

Pull the mains plug before you open the printer.

I can't seem to find a fuse on the board. :confused:

There is a fuse in the power supply, but i am not using that anymore, i connected it to a PSU

I think first you should get your printer work again.

Update OctoPrint ASAP, there is a security vulnerability in versions below 1.3.6:

Also, that was posted over three years ago. We will not support such old instances of OctoPrint, you must update to something more recent for help using it.

It's likely the heaters or thermistors failing, not OctoPrint anyway.