What motors do is to convert one type of energy into another type of energy. And as that conversion is never 100% efficient, some of the energy is turned into heat, which heats up the motor.
Could be a faulty temp sending unit.
A faulty sensor in the engine block.
Yes
A motor is always going to be hot to the touch because when it is running it is very hot and takes awhile to cool down after it is shut off. If an engine is hot to the touch, it just means it was recently running.
means you are running out of hot water
The coil temperature will rise a little when the engine is running, but if it's getting too hot that's generally an indication of damage to the coil or that the coil is wired improperly.
system running hot fans not running
Check for the impellor or fan rubbing on the casing. Check for worm bearings. If the alternator is running at full load the casing will become hot
Because of the electricity running into it
No, the motor on a bathroom fan should not be hot to the touch after running for a few minutes. If the motor feels hot, it may indicate an issue with the fan such as overloading, poor ventilation, or a malfunction that needs to be addressed to prevent any potential safety hazards.
Resistors do that when there's a current running through them.
charge battery. the motor is in the handle so you will be able to feel the heat from the gun if it gets to hot