The spare motor is drawing almost double the amps from the original, it's over heating because the wiring in the control pack is not a heavy enough gauge to carry the higher amp draw.
The amps on the motor indicate how much power it draws when running. The volts on both is the same which is fine.
A replacement motors amp draw must be the same or less then the original, it can not draw more as the system and wiring will not have been designed for it.
It's like installing a 500 watt light bulb in a lamp that was designed for a 250 watt bulb.