Math is correct, but its how its supposed to be. Hotend resistors are over-driven, because 3w of power wont melt abs at 250C.
Measure with multimeter between the leads and heater block, it can be a short between the leads and the block, and current is simply running through the block and bypassing resistor, so there is a small chance that resistor is ok. Normally leads should not have any contact to the block they are mounted in. I use but 1 turn of kapton around resistor to insulate electrical, and i also insulate the leads.
Measure with multimeter between the leads and heater block, it can be a short between the leads and the block, and current is simply running through the block and bypassing resistor, so there is a small chance that resistor is ok. Normally leads should not have any contact to the block they are mounted in. I use but 1 turn of kapton around resistor to insulate electrical, and i also insulate the leads.