I have an interesting issue with a T3 controller. Upon startup or after sittng idle, on a multi-floor run in the up direction I will get the TF LED on the REG card. The REG LED glows faintly then the TF LED comes on. My DF relay also drops out which gives me error code 24 (drive fault). Car then slows to correction run into next landing. Error code 24 is the only fault I'm getting. After a couple runs problem seems to go away. Only happens on a multi-floor run in the up direction. Since the problem goes away as things heat up, it seems like a component issue to me. Just having trouble nailing this one down. Any info will be greatly appreciated! Thanks in advance.
