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e_mintemp
Easy Fix
Creality · FDM 3D Printers
Extruder Thermistor Disconnected or Reading Below Minimum
Quick Answer
Error code E_MINTEMP on your Creality FDM 3D Printers means: Extruder Thermistor Disconnected or Reading Below Minimum. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
CR-10 SECR-10 Smart ProEnder-3 S1 ProEnder-3 V3Ender-3 V3 SEEnder-5 S1K1K1 Max
Likely Causes
  1. Thermistor connector pulled out of the mainboard during maintenance
  2. Thermistor wires broken inside the insulation near the heat block where flex fatigue occurs
  3. Crimp connection in the JST connector has come loose
  4. Mainboard thermistor input pin damaged
How to Fix It
1
Check the thermistor connector on the mainboard and ensure it is fully seated
2
Wiggle the thermistor wire gently near the heat block while monitoring temperature readings to identify intermittent breaks
3
Measure thermistor resistance with a multimeter (should read approximately 100K ohms at 25C)
4
If the connector looks damaged, re-crimp or solder the connection
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
NTC 100K thermistor with pre-crimped connector
JST-XH crimp terminals and housing
Related Error Codes
THERMAL_RUNAWAYHEATING_FAILEDBED_THERMAL_RUNAWAYBED_HEATING_FAILEDMINTEMP
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