Washer constantly becomes unbalanced and vibrates excessively

Help in the link and video.

https://www.google.com/search?q=Bosch+ALS25+blower+vacuum+has+excessive+vibration+and+noise

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That is a common occurrence with dryers such as this one. Even though it sounds bad, it is harmless. If it really bothers, you can re-balance the load and it should reduce the vibration.

Yes you probably need to balance it at the bottom adjust the screws that work for me

sounds like damper rods are getting worn. they support bowl underneath.i think if u change them it should fix problem. is it noisy during spin?if u need more help please reply. please turn power off b4 working on it do not want any accidents.

Hello,

To answer in short regarding your question "Does the Bosch wfmc4301UC have a sensor to sense when the load is unbalanced"...sort of. Now to expand and hopefully explain. This is an abbreviated ( as well as my understanding as an authorized servicer ) discription from B/S/H. (bosch)

All Bosch front load washer`s ( and most other "european" frontloads) use a tachometer/dyno at the end of the motor. What this does is measure the resistance based on the weight of the items/load (heavier load more resistance, more weight on one side then the other = uneven/unbalanced load ) as the unit reverses back and forth and distributes the load. As the items get distributed more evenly the motor speed will increase. If the unit cannot achieve a balance satisfactory after aprrox. 16 attempt`s for the control, the bosch will minimize/reduce the selected spin speed.

Having said all that, it is not perfect. There are other factor`s that can and will affect the balance or cause excessive vibration`s. The number one cause of excessive vibration is the wrong type of detergent being used or too much. These machine`s have to be used with "HE" low sudsing detergent. (refer to your owner`s manual for other factor`s which provoke vibration/knocking)

Different garment`s hold sud`s differently, hence causing an un-equal load distribution as well under long term use major knocking and premature bearing wear.

Hope this answer`s your question and help`s move you forward. Let me know if I can assist you further.

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Good luck.

macmarkus :)

Your load is probably unbalanced. Open and redistribute the garments or take some items out.

It's noisy Most noises from a washing machine occur during the spin cycle. If you hear loud thumping during the spin, the load of clothes may have become unbalanced. Stop the washer and redistribute the clothes, then re-start it. Repeat these steps if necessary.

Hi!

Most noises from a washing machine occur during the spin cycle. If you hear loud thumping during the spin, the load of clothes may have become unbalanced. Stop the washer and redistribute the clothes, then re-start it. Repeat these steps if necessary. If there's a loud thumping noise during the spin cycle, the load of clothes has probably gotten unbalanced. Open the lid, redistribute the clothes in the washer, then re-start it. Repeat these steps if necessary.

Please do accept this solution and revert for further assistance.


Thanks

Rylee

Check first the machine balance, to ensure the machine is at level and well balanced and that is not the problem.

If you already inspected springs and strut, then the problem is usually the drum bearing, or the drum bearing spider that has broken.
You can superficially check if there is a problem with the drum bearing by spinning the drum with the hand to check if there is excessive play.
If you found oil under the machine, check also that the support for the motor and motor gear box under the bearing is not damaged, and any of this part is banging again the chassis, this can cause oil leak, and machine shaking.
The most common is a bad bearing.