F7 E1 on the documented front-load Maytag indicates that the speed needed for the cycle is not being reached. The initial check depends on installation and load.
What happened before the first alert
The manufacturer documentation suggests checking for overloading and shipping materials. If it was just installed, review the setup section in the manual and the removal of the required shipping locks. Do not identify screws by appearance or remove cabinet parts to test.
If the problem appeared with a large load, pause, wait for the normal unlock, and reduce the laundry according to the cycle. Also check whether a bulky item is allowed in that cycle; tub size is not the only limit.
Information for speed diagnosis
Note whether the drum does not start moving, whether it spins at first, or whether it fails when ramping up the speed. These observations describe the behavior; they do not confirm that a Hall sensor, the motor, or the control board has failed.
Only retry what the panel allows after checking the accessible condition. If F7 E1 returns, request service. The guide to motor speed sensing explains the function involved without turning the code into a replacement order.
If there are heavy impacts, stop using it and report that symptom along with the code.