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Heat bed showing 80/0 even when thermistor disconnected
Posted: Tue Oct 04, 2016 8:56 pm
by S Burn
It appears the tape came loose under my heat bed and the thermistor wires shorted....I started getting a max temp error....I uncrossed them and secured them but my LCD panel shows 80/0 all the time and the "H" is on. If i unplug the thermistor from the GT2560 board it still shows 80/0 with the "H".....Is the gt2560 board bad now? I reinstalled the firmware....no change...I unplugged everything except the LCD...no change,
Re: Heat bed showing 80/0 even when thermistor disconnected
Posted: Wed Oct 05, 2016 4:35 pm
by ggg666
It's weird...
What model is your printer?
Could you attach some pics or videos about the issue(the status of LCD and the board)?
Re: Heat bed showing 80/0 even when thermistor disconnected
Posted: Thu Oct 06, 2016 10:50 am
by S Burn
Well I changed out the GT2560 board...working again...not sure what was causing it but that fixed it.
Re: Heat bed showing 80/0 even when thermistor disconnected
Posted: Thu Oct 06, 2016 11:11 am
by William
You mean you replace it with another new board?
Re: Heat bed showing 80/0 even when thermistor disconnected
Posted: Thu Oct 06, 2016 11:13 am
by S Burn
Yes I did.....could not figure out why it thought it was 80 all the time.....new gt2560 took care of it...I tried flashing the firmware...did not help
Re: Heat bed showing 80/0 even when thermistor disconnected
Posted: Thu Oct 06, 2016 11:14 am
by S Burn
Sorry...forgot to mention it is a Prussa I3X pro printer