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bed_heating_failed
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Creality · FDM 3D Printers
Heated Bed Cannot Reach Target Temperature Within Timeout
Quick Answer
Error code BED_HEATING_FAILED on your Creality FDM 3D Printers means: Heated Bed Cannot Reach Target Temperature Within Timeout. 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. Bed heater wiring has high resistance or a broken conductor
  2. Insufficient power supply wattage to heat both bed and hotend simultaneously
  3. Ambient temperature too low for the bed heater to overcome heat loss
  4. Bed MOSFET on mainboard has degraded or failed
How to Fix It
1
Measure bed heater resistance with a multimeter (typically 1-3 ohms for a 24V bed)
2
Ensure the power supply is rated for the printer (Ender-3 V3 uses a 350W PSU)
3
Add a thermal insulation pad under the heated bed to reduce heat loss
4
Monitor the bed temperature graph to determine if it rises slowly or not at all
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Replacement heated bed assembly
Thermal insulation cork or foam pad
Upgraded power supply (if underpowered)
Related Error Codes
THERMAL_RUNAWAYHEATING_FAILEDBED_THERMAL_RUNAWAYMINTEMPMAXTEMP
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