I have a problem. At first, I had a thermal runaway problem. I replaced both thermistor for the bed and nozzle, and nozzle heats up fine, but now my beds temperature only stays at 25° and when I start to heat it , I get heating failed: bed
Hi,
Have you tested the heated bed radiator?
Did you get the bed thermistor TIGHT against the bed with insulation over the top? If the thermistor doesn’t respond quickly enough when the heater turns on an error results.