Temperature error (MINTEMP, MAXTEMP, thermal runaway)
16 usi3d guides for “Temperature error (MINTEMP, MAXTEMP, thermal runaway)”, each with the likely causes, how to check which one is yours and the step-by-step fix, with each manufacturer's official sources.
2 apply to any FDM printer and 14 are for Anycubic, Bambu Lab, Creality, Elegoo, Flashforge, Qidi and Sovol printers.
Each guide summarises the official documentation and says whether usi3d has already verified it on a machine.
Any FDM printer (2 guides)
- Temperature error: Thermal runaway, MINTEMP, MAXTEMP or Heating failed
The printer turns off the heaters, stops and shows a temperature error: in Marlin and derived firmware, “Thermal runaway”, “Heating failed”, “MINTEMP” or “MAXTEMP”…
- The hotend or bed won't heat up, or takes too long
You set a temperature and the hotend or bed doesn't rise, rises very slowly or stays far from the target; often the printer ends up showing a preheat or heating error.
Anycubic (2 guides)
- Kobra S1 or Kobra 3: errors 10121, 10122, 10123 or 10124 (bed or printhead not heating, or thermistor fault)
The Kobra S1 or Kobra 3 stops with 10121 (hotbed heating abnormal), 10122 (extruder heating abnormal), 10123 (hotbed NTC abnormal) or 10124 (extruder NTC abnormal).
- Photon Mono M7 Pro: the resin vat does not heat the resin or code 307 appears
The Photon Mono M7 Pro reports «Heating abnormality, heating has ended (CODE: 307)» and stops heating the vat, or in a cold room the prints fail because the resin is not…
Bambu Lab (1 guide)
- Nozzle or bed temperature errors (HMS 0300-0200-… and 0300-0100-…)
The printer shows a nozzle temperature error (for example 0300-0200-0001-0001, heater short circuit, or 0300-0200-0001-0007, sensor open circuit; the A1 usually shows…
Creality (3 guides)
- Ender 3 V3 or V3 Plus: the hotend does not heat (error 2564 or 111) or it restarts while heating
The Ender 3 V3 or V3 Plus shows «Error, key: 2564, the extruder is not heating as expected», gives error 111 at start-up or while printing (communication between the…
- Ender 3 V3 SE: nozzle or bed temperature too low or too high, or it restarts while heating
The Ender 3 V3 SE reports that the nozzle or bed temperature is too low (it does not reach the set temperature in time) or too high (usually right after switching on)…
- The K1 shows a «key» error for the print head or bed (2000, 2001, 3002, 2564, 2565)
The K1, K1C or K1 Max screen shows an «Error, key: …» window and the printer stops or does not finish booting.
Elegoo (5 guides)
- Centauri Carbon 2: errors 101, 102, 103 or 104 (bed or print head not heating, or a thermistor fault)
The Centauri Carbon 2 stops with error 101 (check the heated bed and its wiring), 102 (heated bed temperature sensor disconnected), 103 (check the print head and its…
- Centauri Carbon: errors 101, 102, 103 or 104 (bed or printhead not heating, or a thermistor fault)
The Centauri Carbon stops with «Error Code: 101» (the heated bed did not heat up as expected), 102 (anomaly reading the bed NTC thermistor), 103 (the print head did not…
- Neptune 4 and 4 Pro: plastic blob on the hotend (blob of death) or leaks around the nozzle
During printing the filament sticks to the nozzle and the hotend surface until it forms a blob, or plastic builds up around the nozzle before starting or when stopping.
- Neptune 4: Klipper errors «Extrude below minimum temp», «Move exceeds maximum extrusion» or «MCU shutdown»
The screen or Fluidd on a Neptune 4 (4, 4 Pro, 4 Plus or 4 Max) shows «Please run 'SDCARD RESET FILE' or 'FIRMWARE RESTART' to resume» followed by «Extrude below minimum…
- Saturn 4 Ultra 16K: cold resin or «Resin heating anomaly» message (heated resin tank)
In a cold room, the Saturn 4 Ultra 16K fails its prints: the base does not stick to the build plate or the supports come away from the model.
Flashforge (1 guide)
- Adventurer 5M: temperatures at 0 °C or negative, or errors E0002, E0005 or E0011
The Adventurer 5M (or 5M Pro) shows the nozzle and bed at 0 °C, or the nozzle at a negative value and not heating, or it stops with «E0002 Communication with MCU…
Qidi (1 guide)
- QIDI Q1 Pro: errors «Probe samples exceed samples_tolerance», «ADC out of range» or «MCU MKS_THR»
The Q1 Pro stops and shows a Klipper message on screen such as «!!Probe samples exceed samples_tolerance, probe failed» when levelling, «Mcu mcu shutdown: Thermocouple…
Sovol (1 guide)
- SV08: the screen shows «Error 8» (or 21 or 3): how to find the cause from the Mainsail message
The SV08 shows an error number on the knob screen (Error 8, sometimes 21 or 3) at power on or during a print.
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