Informations about solution which is posted there you will find below.
Hp pavilion dv6 cooling fan error.
Continued operation is not recommended and may cause unpredictable behavior that could result in random shutdown data loss or possible system damage.
Reducing heat and fan noise by cleaning air vents.
4 3 out of 5 stars 74.
The system has detected that a cooling fan is not operating correctly.
Hp notebook pcs fan is noisy and spins constantly windows this document is for hp notebook pcs.
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3 7 out of 5 stars 13.
Cpu fan not detected 900 cpu fan is not detected or may have malfunctioned cpu fan speed failure 909 the system has detected that a cooling fan may not be working properly.
When a computer fan spins loudly for a long period of time there might be an issue with a fan or the computer might be overheating.
Cpu fan speed failure 909 the system has detected that a cooling fan may not be working properly.
Dv7 3188cl fan problem solved no thanks to hp.
Hi below topic willl give you answer on this question.
Eathtek replacement cpu cooling cooler fan for hp pavilion dv6 6135dx dv6 6136nr dv6 6138nr dv6 6140us dv6 6144ca dv6 6145ca dv6 6145dx dv6 6148ca dv6 6155ca dv6 6157nr dv6 6158nr series.
Hp pavilion cpu fan eeror code has been fix with cpu fan replacement round 8 dollar.
System fan 90b the system has detected that a cooling fan is not operating correctly.
Cpu fan not detected 900 cpu fan is not detected or may have malfunctioned.
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To resolve the error take the following steps.