Thermistor error, no problem can be found

I got my second sv06 plus and have been printing with it for about a month. Now every print attempt after about 10 minutes of running it gets a thermistor error. I watch it when it happens and the bed and nozzle heat values read correctly the whole time.

I have looked at the bed connections on the bed and the board. All good. I replaced the thermistor on the hot end just cause I had one. Still throws the error in the same spot every time.

Possibly a board issue? Any help would be much appreciated. Thank you.

From your temps in the pic, your printing something like ABS, ASA…??
Is this printer in an enclosure…??

I am printing PETG. These are the temps that have been working best for me. No enclosure, but have had many successful prints from the same file in the past month with the same filament. This error just started happening with no cut out in the temperature read out on the display when the error occurs.

Hello,
First of all, as @Lion, I think your nozzle température is too high for PETG.
Try 235, it should be enough.
Then, if previously it worked, it maybe a thermistor issue or a motherboard issue.
If you have already change a thermistor, reflash the motherboard. If it doesn’t change maybe a new thermistor with the good reference.

Check the wire connection at the bottom of the bed.