Dave,
Do your pumps still work? Running hotter is often an indication that the pumps are dirty and the friction is higher, increasing the watt draw. I would check the prop assembly and especially focus on the upper bearing, there is a stickied thread at the top of this forum dealing with this issue. The 6200 and 6212 drivers and transformer will run warmer than smaller streams, they use more power. The drivers generally run about 120F, the transformers are about the same in normal operation for a 6200, on a 6000 or 6100 they are about 10-15 degrees cooler.