¶ Fault Description
The auxiliary part cooling fan provides a speed feedback signal. Normally, when voltage is applied, the fan rotates at the expected speed, and the printer monitors this feedback to confirm proper operation.
If the feedback speed is lower than the designed speed, the printer will generate this error.
Possible Causes:
-
The fan blade is stuck by something (such as a filament) and cannot rotate freely
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The auxiliary part cooling fan connector is loose
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Fan is faulty
¶ Safety Warning
The fan may spin suddenly while cleaning, which could cause injury. Ensure the fan is turned off before performing any further steps.
¶ Troubleshooting
¶ Step 1. Inspect for Obstructions
Turn off the fan and manually rotate the fan blades to check for any blockage. If an obstruction is found, remove it promptly.
¶ Step 2. Check the Connector
If Step 1 does not resolve the issue, inspect the fan connector for looseness. Follow the guide:Replace H2S Part Cooling Fan to disconnect and reconnect the part cooling fan connector.
After reconnecting, try turning on the fan again.
¶ Step 3. Replace the Fan
If the fan still does not work after Step 2, the part cooling fan may be damaged. Follow the guide:Replace H2S Part Cooling Fan to replace it.
If the above steps do not resolve your issue, please submit a ticket and upload your printer logs
¶ Conclusion
We hope this guide will provide you with useful information and help you solve problems.
To ensure that you operate safely and effectively, if you have any doubts or questions about any steps in the guide, please contact our Customer Support team before starting the operation.
We are always happy to answer your questions and provide support.
Click here to contact online technical support (service hours 9:00-21:00)
¶ Equivalent Codes
The following HMS codes represent the same type of issue.
| HMS Code | Description |
|---|---|
| 0300_3100_0001_0001 | he Part Cooling Fan speed is too slow or stopped. It may be stuck, or the connector may not be plugged in properly. |