Bosch Dishwasher Not Draining But No Blockage
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When you have a Bosch dishwasher that is not draining, it can be an incredibly frustrating experience. You may have already checked for blockages and been unable to find any, so what else could be causing the issue? Thankfully, there are some common causes of a Bosch dishwasher not draining that you can try and diagnose and repair yourself.
Common Causes of a Bosch Dishwasher Not Draining
The first thing to do when your Bosch dishwasher is not draining is to check for any blockages in the drain hose. This can often be done visually by disconnecting the hose from the dishwasher and checking for any obstructions. If there are none, then it is likely that there is an issue with the drain pump. This could be caused by a worn or broken impeller or a clogged filter. The drain pump is also responsible for pumping out any excess water, so it could be that it is not working correctly and is not able to pump out the water.
Check the Drain Pump
If the drain pump is the issue, then it is important to check that it is working correctly. To do this, you will need to remove the dishwasher’s door and locate the drain pump. You should be able to see the impeller and check that it is turning correctly. If it is not turning, then you will need to replace it. If the impeller is turning correctly, then it is likely that there is a problem with the filter.
Clean or Replace the Filter
The filter can become clogged with food particles and other debris, preventing the dishwasher from draining properly. To check the filter, you will need to remove it from the dishwasher and check for any blockages. If there are any, then you will need to clean the filter and replace it. If the filter is clean and is not blocked, then it is likely that there is a problem with the drain pump itself.
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If the drain pump is the issue, then it is important to check that all the connections are secure. You should check the connections for the drain pump and the inlet valve as these can sometimes become loose or dislodged. If any of the connections are loose, then you will need to tighten them. If the connections are secure and the dishwasher is still not draining, then you may need to replace the drain pump.
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If the dishwasher is still not draining after checking the drain pump, then it could be that the float switch has become jammed or is stuck. The float switch is located inside the dishwasher and is responsible for detecting when the dishwasher is full of water. If the float switch is stuck, then it will prevent the dishwasher from draining properly. To check the float switch, you will need to remove the dishwasher door and locate the switch.
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If the float switch is stuck, then it will need to be replaced. This is a relatively easy job and should not take more than an hour. Once the float switch has been replaced, then the dishwasher should be draining properly again. If the float switch is not the issue, then it could be that the drainage system is blocked or the inlet valve is faulty.
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If the drainage system is blocked or the inlet valve is faulty, then it will need to be inspected by a professional. It is important to get any issues with the inlet valve and drainage system fixed as soon as possible as this can cause further damage to the dishwasher.
Conclusion
In conclusion, if your Bosch dishwasher is not draining, then it is likely that there is an issue with the drain pump, the filter, the float switch or the inlet valve. If the issue is not a blockage, then it is best to have the dishwasher inspected by a professional. Once the issue has been identified, it can be fixed and your dishwasher will be draining properly again.
Dishwasher photo and guides: Bosch Dishwasher Impeller Cover
How to fix Bosch Dishwasher that is not draining - YouTube
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