Can I repair the SubDrive controller?
I have had a Franklin subdrive, (which was out of warranty) which was hit (indirectly) by lightning, repaired by an electronic repair specialist. He spent a few dollars on the parts. Works great now, saved my client about $1,200. You are welcome to contact me if you want to try to have him repair it.
Currently, the only option for repair of a damaged SubDrive controller is replacement. However, replacement fans are available in the event of a fan becoming damaged.