PCB or temp problem
October 21, 2014 05:19PM
Have used my Mono Mendel one year time without problems.
But now when I press the print button begins the table temperature to rise.
You can not turn it off with printer interface, I need to turn the power switch off.
Can´t se any burned parts on the PCB.
I have checked the temp sensors and they seem to work as they should.
Tested according to the instruction

The first time the error noticed was when I printed a fairly high detail.
When I try to lower the table temperature, but it began to rise instead.

Thinking if I buy a new circuit board and cause of the error is still there,
and the new one crasch to.
But clearly if I replace hot end parts too so should not be the any foult remain.

The PCBcard is called Mono Mendel Revision: 2013-05-08
Is there something I can take another look at.

Re: PCB or temp problem
October 21, 2014 05:27PM
Reprap Melzi V2.0 is stamped on PCB

Re: PCB or temp problem
October 21, 2014 08:12PM
Is the thermistor still firmly in contact with the bed?

MakerFarm 8" Prusa i3v
0.4mm E3D v6 for 1.75mm
Re: PCB or temp problem
October 22, 2014 02:45PM
Yes it shows the value in the program.
And comparing with a thermometer, it shows the same temperature.
I have also been looking for any short circuit between the thermistor and element in bed.
Even in the hotend.
Thermistor - power connections for hotend heater- metal parts.
No short circuit.

Sorry, only registered users may post in this forum.

Click here to login