I recently had a crash and got the drone to a point where it can operate and everything looks good. I prefomed an update on the system and now the fan is not working. Has anyone else had this issue. I got the fan from couldcity and they are a dji approved parts vendor.

Hi there, sorry to hear about the inconvenience. For this situation, It is recommended to send back for comprehensive check to ensure the long-term usage. You could register through the following link, https://repair.dji.com/, to create a case and send back for further processing. If you need assistance while submitting, you could also contact with our support service http://www.dji.com/support. Thanks.