HotEnd Test not working

I'm trying to test that my HotEnd and Bed controls in Pronterface

Heat is set to 230, I then press "Set"
T:26.4/230.0 B:108.8/0.0 T0:26.4/230.0

Unless I'm misunderstanding this
T:26.4 should be rising until it reaches 230.0 - Correct?
Instead of T - 'B' is rising

I double checked and the Hotend is connected to D10 on the Ramps and the Bed is on D8

What could cause this?

Either your bed & hotend thermistors are swapped over, or your bed & hotend heater connections are swapped.