How To Fix Bosch Washer That Won’t Agitate

How To Fix Bosch Washer That Won’t Agitate

If your Bosch washing machine is no longer agitating during the washing cycle, it’s painful and tiring to wash your clothes by hand. If you’re not calling a repairman , or even purchasing an entirely new washer There are a few methods to solve the problem to fix the problem yourself. We will discuss the most common reasons the Bosch washer isn’t spinning and give you step-by-step instructions for how to fix it. We’ll address everything, from a worn drive belt to a malfunctioning lid switch. This can save you time and money. If your Bosch washer doesn’t seem to be agitating do not fret. We’ll help you resolve the issue.


In top loading washing machines made by Bosch, the agitator is responsible for moving the clothes through the water and detergent and is powered by the shaft that is the output of the transmission. The shaft that drives the output is usually splined, and the center of the plastic agitator will have a matching spline to ensure an ideal fitting. The agitator can be either an all-in-one unit or a dual-action agitator depending on the model. How to check the agitator in the Bosch washing machine:

  1. Unplug the Bosch washing machine from the source of power.
  2. Remove the fabric softener dispenser or the top cover, based on your model, in order to gain access to the agitator. Make an attempt to manually turn the agitator. There should be some resistance as it is splined.
  3. To observe the agitator thoroughly, remove it from the appliance. The bolt that threads into the at the top of the shaft of transmission will hold most agitators securely. Some models have the set screw located at the base which connects the motor to its shaft. Others use a rubber O ring to ensure a secure fit.
  4. You will need a replacement Bosch agitator in the event that your agitator has been damaged or worn in any of its components, particularly on the splines.

Agitator Directional Cogs

On top loading Bosch washers using a dual action agitator, it is possible for the upper part of the agitator be separated from the lower portion. The upper portion is driven by directional cogs, or “dogs” which are made from hard plastic, and they can wear out from hard use. If the upper section of your agitator will turn in one direction or makes an ear-piercing sound when washing, it is possible that the directional gears need to be replaced. How to test the directional cogs in a Bosch washer:

  1. Unplug your Bosch washing machine and take off the dispenser for fabric softeners or top cover, depending on the model.
  2. Locate your agitator cogs. You may need to remove the cap of the agitator, the base or top, depending on the model for access to the cogs.
  3. Take a look at the cogs and determine if there are scratches, discolorations, or wear. Also, look for any cogs that are missing.
  4. If your cogs have any of the symptoms described in the previous paragraphs, you’ll require an entire set of Bosch replacement directional cogs.

Agitator Coupler & Cap & Bolt

Some models of top loading Bosch washers have a coupler that connects the shaft for transmission and the agitator. The drive coupler is splined from the inside, to match the transmission, and splined on the outside to match the agitator. If your Bosch washing machine is making a grinding sound during the wash process and the agitator rotates freely, then the drive coupling may be damaged. How to examine and repair the agitator coupler on a Bosch washing machine:

  1. Before beginning, turn off your Bosch washer.
  2. To access the coupler that connects the agitator to the agitator, must first remove the dispenser of fabric softener or top cover, depending on your model. Then, you will then need to remove the agitator.
  3. Unthread the bolt which holds the coupler onto the shaft of transmission and take it off the appliance. Examine the coupler for cracking or burnt areas, wear, rust, and damage.
  4. If you spot any of the above, you will need Bosch replacement agitator coupler.

Direct Drive Motor Coupling

Some top load Bosch washers use a direct drive motor coupling that transfers power from the motor to the transmission. The drive coupling made comprising two plastic drive forks, as well as an elastic coupling. It connects the motor and transmission. The drive shaft is linked to one of the forks while the second one is attached to the shaft that is used for transmission input. The rubber coupling between drive forks absorbs the torque generated by the shaft of the motor to prevent them from breaking. The use that is normal will result in wear on the coupling and eventually the drive forks can slide and not be able to engage the transmission and clutch. The most common sign of a failed motor coupling is when the washing machine fills and drains normal, but it does not spin or agitate. How do you check the motor coupling on theBosch washing-machine:

  1. Before you begin, disconnect your appliance from the power source.
  2. To inspect the coupling of your motor, find it and remove it. To reach it you’ll need to open the cabinet of your Bosch cabinet for the washer, and it may be necessary to take off the drain pump or motor depending on your model.
  3. After you’ve removed the object, inspect the coupling closely for signs of damage, wear cracks, etc.
  4. You’ll require a replacement direct drive motor coupling Bosch in the event that you encounter any of the following symptoms.

Drive Belt

Top loading Bosch washers come with a belt that powers the transmission. The belt could be to blame if the washer stops moving. How to determine whether the drive belt in aBosch washing machine requires replacing:

  1. After unplugging the Bosch washer, take it off the access panel or cabinet to reveal the drive belt.
  2. The drive belt will be connected to the drive motor . It can be removed by unplugging the clamps that hold it in the position.
  3. Visually inspect the drive belt. Check for signs of wear, fraying or other indications of damage to your drive belt.
  4. If your belt exhibits any of the symptoms described above, you’ll require a Bosch replacement drive belt.


The transmission in a top load Bosch washer has the responsibility of changing the rotational motion of the motor into the forward and back motions for the agitator. The transmission comes with an input shaft which is driven by the motor either directly or via a belt, as well an output shaft that is used to control the agitator. If your shaft for agitation does not turn, first make sure that the input shaft being driven. The transmission may be at fault If the input shaft spins however the agitator shaft doesn’t rotate. Most manufacturers do not supply internal parts , so a complete transmission would be required. Also, you should be ready to replace any tub seal at the point in the area where the shaft connects to the tub. How to check the transmission of a Bosch washing machines:

  1. Before you examine your transmission check to ensure that the problem isn’t due to the agitator itself or any other components. Once you have eliminated the possibility of a problem with your agitator then disconnect the washer and then take the cabinet off. After that, you must locate the transmission.
  2. After you’ve located the problem with your transmission, plug your washing machine back into the circuit and run the wash cycle to see whether the problem is due to the transmission. root of the issue. You may hear odd sounds in the event that the transmission is defective. Be cautious when you perform this step as the internal components of your dryer are exposed.
  3. You’ll need a new Bosch transmission when the transmission starts to become loud.

Drive Motor

Top load Bosch washers utilize motors that drive the transmission. A lot of Bosch washing machines use the reversing motor. This signifies that the motor turns in one direction for agitating while the opposite direction is used for spinning and draining. The motor may operate correctly in the spin direction , but not in the direction of agitation. How to test the drive motor on a Bosch washing machine

  1. Unplug the power source of your Bosch appliance prior to starting the test as you will be handling electrical components.
  2. The cabinet that you have removed from your Bosch washer in order to locate and take out the drive motor. To remove the motor from your appliance, you will need to pull on the connectors instead of the wires.
  3. The multimeter must be set to Rx1 mode. Verify continuity by placing probes on the motor’s terminals. The result should be of zero or near zero.
  4. Place one probe onto the terminal to test the ground connection. The second probe should be placed on the housing of the drive motor. You should not receive any reading during this test.
  5. You will need a replacement Bosch drive motor if your readings differ from the ones described above.


The drive motor is controlled by the timer lid switch, the water level switch, and occasionally, the selector switch. The timer’s function is to provide the proper power to start the motor in the correct direction. The timer might be defective if the washer’s drive motor does not get electricity during the washing phase. How to test the timer on aBosch washing machine with a multi-meter

  1. As with all repairs, unplug your Bosch washing machine’s source of power.
  2. Unplug the control panel and the back panel of your appliance in order to locate the timer.
  3. For testing the washer, pull on the connectors that do not have metal and disconnect the wires from the timer.
  4. With a multimeter set to the Rx1 settings, make sure you connect the probes to the terminals that control the motor (refer to your wiring diagram) to determine if there is continuity. The reading should read or near zero.
  5. If you do not receive this reading, you will need an Bosch replacement timer.

Lid switch

The lid switch is a safety feature that is available on top-loading Bosch washing machines. The motor circuit is linked to the lid switch, which is usually located under the top of the machine. The switch must be activated to enable the motor to operate. A projection or pin on the lid is pushed against and closes the lever of the lid when it’s closed. If your Bosch washing machine does not move and the motor is not operating it is time to check the lid switch. How to test the lid switch on theBosch washing machine:

  1. Start by unplugging the Bosch washer. Then, take off the top panel.
  2. Locate the switch and verify that it’s working as the lid is closed. If it’s not, unplug the switch in order to check it.
  3. Switch your multimeter to Rx1 and then touch to the terminals with probes. Then, press the button and press it. The multimeter should show a reading of zero or close to zero.
  4. You will need a replacement Bosch lid switch if the results of your tests are different.

Selector Switch

The selector switch is used in certain models to control the speed of motors in the drive. If the switch is damaged, it could stop the motor from operating. What you can do to check the selector switch in theBosch washing machine with a multi-meter

  1. Before you begin using electrical components, unplug the electrical components in your Bosch washer.
  2. Locate and take off the switch for selecting from the Bosch appliance. It is likely to be anchored to the frame of your Bosch washing machine. You’ll need to take out the entire or a portion of your washer’s cabinet to access it.
  3. Utilizing a multi-meter with the Rx1 setting, you’re going to test one button at a given time to determine if it is a continuity. Place the probes on the terminals, and then press the first button, the reading should change from infinity to zero. Keeping the probes connected to the terminals, press on a different button, the reading should return to infinity.
  4. You’ll need a new Bosch selector switch if your test results are different from the above.

Water Level Switch

The water level switch is situated on top-load Bosch washers and allows you to choose the appropriate level of water. The switch is also used to provide power to the drive motor. It shuts off the valve for water inlet to reduce power consumption and supply power to the drive motor circuit. The pressure switch could be the cause of the issue if the washer is not filled and does not shake. How to test the water level switch in the Bosch washing machine:

  1. Unplug the Bosch washing machine from its power source.
  2. The water level switch is normally found in the control panel behind, however it is also located in the sump area below the tubs.
  3. Before changing the switch, you must first eliminate the air dome hose as the problem. Untangle the hose, then submerge it in water. S
  4. eal the one end, then blow air into the other and watch for bubbles. You must also look for obstructions in the hose and look for signs of cracks or wearing.
  5. If there is no issue with the air dome hose you may need a Bosch replacement water level switch.