Multiple issues can cause a dryer to vibrate and make a lot of noise from an overloaded dryer to a defective component.
Dryer vibration on floor.
This will only work of course if your washer sits close enough to the wall on one side and the dryer on the other.
A damaged idler pulley idler pulley bracket or idler pulley tension spring could.
If the laundry appliances are on the main floor and adding bracing in the ceiling of the level directly under the washer is possible this should give the washer a sturdier stable floor and minimize vibrations.
If a stackable washer dryer unit is vibrating it may not be level.
Preventing a stackable washer and dryer from vibrating is an easy task that you can troubleshoot and tackle yourself.
Regardless of the specific problem vibration is definitely a problem that you ll want to address since the movement can cause damage to surrounding walls and floors as well as the dryer itself.
If it s not possible to add bracing as described you can place a 5 8 or 1 inch sheet of plywood under.
There are several ways you can complete this task in a short time for little money.
My again non physics expert mind s theory is that this spreads the vibration load out to more planes points of contact.
Step 1 check if it s level.