* Ensure the washing machine is plugged in correctly and receiving power.
* For top-load washers, check if the lid switch is faulty or not properly aligned.
* Make sure the lid closes securely, as many washers have a safety feature that prevents spinning if the lid is not properly closed.
* Open the back panel of the washing machine and check the drive belt.
* If it's loose, adjust or replace it if needed.
* The motor coupler connects the motor to the transmission and could be worn or broken.
* Replace the coupler if it is damaged.
* If the washing machine fills and agitates but does not spin, it could be a problem with the motor.
* Check for any obstructions or damages to the motor.
* Use a multimeter to ensure the motor is receiving power and functioning correctly.
* A non-functional drain pump can prevent the machine from spinning.
* Check if the pump is clogged, then listen to see if it is running when the machine is set to the spin cycle.
* Replace or clean the pump as necessary.
* If all other potential causes are ruled out, the issue might be with the transmission.
* Transmission issues typically need professional repair or part replacement.
Remember that if you are uncomfortable with any of these tasks, it is recommended to seek professional assistance from an appliance technician.