GT2560 v3 Temp Issues

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Doyley
Posts: 2
Joined: Mon May 21, 2018 4:21 am

GT2560 v3 Temp Issues

Post by Doyley » Thu Apr 30, 2020 12:44 am

Hello all,

So I was cleaning my nozzle yesterday, my 3 year old decided to climb on me, fell and grabbed the wires on my printer as she fell.
I heard my printer restart. When I checked she'd broken the extruder thermistor wire.
I fixed this but now when I power on my printer it's telling me the bed temp is ~350 and extruder is ~110.
I've took my printer apart and disconnected everything from the board except power and USB and it still tells me the same temp readings.
Is the board fried? Is it something I can fix? I've looked over the board and I can't see anything obvious, no obviously blown components.

Any suggestions?

Thanks

Doyley
Posts: 2
Joined: Mon May 21, 2018 4:21 am

Re: GT2560 v3 Temp Issues

Post by Doyley » Thu Apr 30, 2020 1:39 am

After doing some searching I found a post on thingiverse where a guy descibed a potential issue if the thermistor wire touches the frame it could send 24v to pin 0 of the chip and this will break the temperature sensor on the chip. I've emailed Geeetech.

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