mintemp Troubleshooting

MINTEMP / thermistor error on the SUNLU Rapid PETG 3D Filament 1.75 mm 1KG

Source: Reddit r/3Dprinting — troubleshooting Confidence: 60% Verified Aug 9, 2026

The printer reports a MINTEMP error, indicating the thermistor is reading an abnormally low temperature.

How to fix MINTEMP / thermistor error

Check the thermistor connection

Inspect the thermistor wiring and reseat it in the hotend. Replace if damaged.

Source: Reddit r/3Dprinting — troubleshooting Confidence: 60% Verified Aug 9, 2026
Difficulty: ★★ Est. 15 min

Replace the thermistor

If the thermistor is faulty, replace it with a genuine spare.

Source: Reddit r/3Dprinting — troubleshooting Confidence: 60% Verified Aug 9, 2026
Difficulty: ★★ Est. 15 min

Replacement parts for the SUNLU Rapid PETG 3D Filament 1.75 mm 1KG

← All SUNLU Rapid PETG 3D Filament 1.75 mm 1KG error codes

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