What to check yourself
Step 1. Check the pump cover is there and locked down
Take the filter out and look at the cover underneath. It should be sitting flat and turned into its locked position. If it is loose, sitting at an angle, or missing entirely because it came out with the filter last time and ended up in a drawer, that is your fault code. Seat it, turn it until it stops, and try a cycle.
Step 2. Clear the impeller under it
With the cover off and the machine unplugged, turn the impeller by hand and remove anything wrapped around it.
Unplug at the wall before reaching in, and look before you touch: glass fragments collect here.
Step 3. Check the drain hose
A hose blocked or kinked behind the machine produces the same symptom. Follow it from the machine to the sink cabinet looking for a crushed section.
What a technician will look at
Described so you know what you are paying for, not as steps to repeat.
Replace the pump
If the cover is right, the impeller is clear and the hose is open, the pump has failed and needs replacing.
When to call a technician
After the cover, the impeller and the hose have all been ruled out. If the cover itself is broken or lost, order the part rather than booking a visit: it is a cheap plastic component and fitting it is the same motion as cleaning the filter.
What the repair costs
| Repair | Part only | Fitted by a technician |
|---|---|---|
| Refitting the pump cover | - | Free |
| Replacement pump cover, part only | $15 to $40 | $75 to $150 |
| Drain pump replacement | $20 to $100 | $100 to $400 |
A new machine of the same class runs $500 to $1,500. Once a quote passes about a third of that on an older appliance, the repair stops making sense.
Codes people confuse this with
Questions people ask
- It started right after I cleaned the filter.
- Then it is the cover, with near certainty. It lifts out with the filter assembly easily and goes back looking seated when it is not. Take the filter out again and turn the cover until it locks.
Which machines this applies to
Applies to
All Bosch dishwashers. Machines with newer electronics show E6102 for the same fault.
Last checked
2026-08-03