Hi.
Immediatly after starting the M200 plus, I have 277-278°C on hotend in “heating controls” even if I did ask nothing (I have tried “on/off” button with no succes). The hotend remains cold in both case.
What I have tried for solving the problem :
Factory reset
Update to the last firmware : 2.6.15
and because I have lot of spare parts :
change the thermocoupler and heater (the resistance on the heater is around 15-16 Ohms)
change the PCB Extruder
change the ribbon cable between PCB Extruder and motherboard.
Did someone has a suggestion on what I can try ?
Thanks.
Based on your description (cold hotend, consistently high temperature reading), it seems the fault is somewhere in the path between the thermocouple and the MCU on the motherboard.
Since you’ve already replaced all other components in this path except for the motherboard, the issue likely resides there.
On the motherboard, one possible suspect is the filtering capacitor marked as “C46” (A106 - 16V, 10µF). If this capacitor has failed, it could be causing incorrect temperature readings.
You have a few options to resolve this:
If you’re confident with electronics repair, you could try replacing the capacitor or even desoldering it temporarily to see if the readings improve. Removing it might restore correct readings but with some added noise, which might not be noticeable. If this doesn’t help, proceed to step 2.
Contact support to inquire about a motherboard replacement.
Keep searching for other potential issues
Please keep in mind, I’m not an electronics specialist, so proceed with caution, and don’t hold me accountable for any unexpected results!
I have made the modification and tried to boot without the capacitor but it’s still the same. No changes.
I will contact the support to inquire new motherboard.
Do you have any tips, advices or mail address to contact them easily ? Maybe there are official members of Zortrax support here ?
Do you know if something is currently wrong with the Zortrax support ?
I sent a ticket on Thursday 3 October : no answer.
A second last Thursday : still no answer.
If someone has a trick to contact them, it would be nice for me.
Thanks.
Please someone from Zortrax with some compassion for customers, could you please mp me ?
We are one month after my problem : 3 tickets on the official support = no answer.
My M200 Plus is down and I need it for work so it would be really nice to get a sign of life form the brand…
You mean C47, that HORRIBLE little yellow timebomb? If you are going to replace it, swap it for a “Polymer” type. FAR more reliable than tantalum, and a LOT less likley to cause a small nuclear explosion inside your printer if they fail.
Hey got a similar problem with a m200 plus. ButI have false reading on the hotend and the heatbed. Already tried different firmwares, checked connections. Desolderes c46, C47, changed the Mosfet to no appeal. Eveything else seem to work, moving axis, startup, touchdisplay. Just the temperatures are the way off. I can heat the Extruder and it is insanely hot within seconds but stills shows a false reading of about 167 degrees for the hotend and 60 degrees for the heatbed.
