Hello I have a Propeller Breeze 5 fan unit and is a great piece of kit and helps to keep my tank cool but 3 fans out of the 5 have stopped working i have checked to see if there is voltage at each fan and there is. 2 of the fans made a screeching noise before they stopped and the other has just stopped would you say it would be the bearings? I have looked over the internet to find if i can buy spare fans to replace and cant find them.
Do you sell spare parts for this please as i would love to get this back up and running asap.
Thankyou
David