An e25 error code indicates that either the drain pump is blocked or the drain pump cover is loose. A blockage in the drain hose or a clogged filter may also cause the e25 error code. To fix the issue, the drain pump and dishwasher filter should be cleaned out and checked for damage. To stop the issue from happening again, the dishwasher should be cleaned regularly and care taken to not allow foreign objects, such as bones or shards, to clog up the dishwasher.
The following guide applies to the following models:
SHX46A05UC/14/SERIAL: – 8210
1. Clean the Filter
Depending on the model, many Bosch dishwashers have a removable filter at the bottom of the dishwasher. While the e25 error code points to a drain pump issue, cleaning and removing the filter may also fix the issue.
To access the filter, remove the bottom dish rack and spray arm (if necessary). Depending on the model, you may be able to turn the top of the filter to remove it from the dishwasher, or a screw may need to be removed. The dishwasher’s manual can be checked for filter removal instructions. Take the filter out of the dishwasher and clean it with warm, soapy water.
2. Access the Drain Pump
Access to the drain pump will depend on the model of Bosch dishwasher that you have. On many Bosch dishwashers, the pump cover and drain pump can be checked and cleared of blockages from inside the dishwasher. If you cannot access the drain pump from inside the dishwasher, the bottom kickplate or the access panel underneath the dishwasher will need to be removed.
To remove the kickplate (bottom front access panel):
- Disconnect the power and water to the dishwasher.
- Unscrew the kickplate at the base of the dishwasher.
- Open the dishwasher door and remove the screws securing the outer door panel.
- Close the door securely and pull the outer door panel down to remove it.
- Unthread the screws to the inner access plate.
- Detach the plate from the harness support and set it aside.
To remove the base access panel:
- Disconnect the power and water to the dishwasher.
- Remove the dish racks from the dishwasher.
- Remove any mounting bracket screws that are securing the dishwasher to the counter.
- Carefully pull the dishwasher out. Disconnect any hoses or wiring that stops the dishwasher from being pulled out.
- Lay the dishwasher on its back or top.
- Remove the screws that secure the bottom access panel.
3. Check the Drain Pump Cover
Most Bosch dishwasher models feature a pump cover or impeller cover that can come off and cause the e25 error code. On many models, the pump cover can be removed by using a teaspoon to unclip it, or a screw may need to be removed. If the pump cover is loose or has come off, securing the cover will likely resolve the e25 issue. The cover should click when it is secured correctly.
4. Check the Drain Pump
If you can access the pump cover from inside the dishwasher, remove the cover and check if the pump is clogged. It is recommended to wear protective gloves when checking the pump, as the pump housing may contain sharp objects, like broken glass. Remove any debris that is clogging the drain pump. Also, check that the pump’s impeller can turn freely. An impeller that struggles to turn indicates that the drain pump is blocked or faulty.
To assess whether the drain pump is faulty, the drain pump motor will need to be removed and tested with a multimeter for continuity (a continuous electrical path). If there is no continuity, the drain pump should be replaced. To access the drain pump, refer to the instructions in step 3. Once the relevant access panel is removed, disconnect the fill hose off the sump and air pressure chamber, and disconnect the wire harness from the drain pump. You should be able to remove the drain pump by releasing the locking tab and rotating the pump clockwise.
5. Check the Drain Hose
The drain hose connects to the drain pump and sink pipe to take wastewater out of the dishwasher. Over time, foreign objects and food particles may get through the dishwasher’s filters and clog up the drain hose. A clogged drain hose is more likely to cause an e24 error code, but if the filter, drain pump, and drain pump cover are not causing the issue, unblocking the drain hose may resolve the error.
It may be possible to unclog the drain hose by running the dishwasher with vinegar or a dishwasher cleaning solution. Baking soda can also be added to a second cycle to remove odors.
To clean with vinegar and baking soda:
- Pour 1 cup of distilled white vinegar into a dishwasher-safe bowl.
- Place the bowl on the top rack in the dishwasher. Do not pour the vinegar directly into the dishwasher, as it will drain out when the dishwasher starts the cycle.
- Run a normal cycle without any dishes or detergent in the dishwasher.
- After the cycle, sprinkle a cup of baking soda into the dishwasher, and run another short cycle.
If the drain hose remains blocked, it can be cleaned by disconnecting it from the dishwasher and sink. Make sure to put a container or towel down to collect water that may spill when you remove the hose. The power and water supply to the dishwasher should also be disconnected. You will then need to remove the dishwasher kickplate or bottom access panel (see step 3). Detach the hose and unclog it by running hot water and vinegar through it or using a drain snake cleaning tool.
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