FixByModel
E25

Bosch E25: Drain pump blocked or pump cover loose

The drain pump is jammed or its cover is loose or missing, so the machine cannot pump water out. Unlike E24, this points specifically at the pump impeller rather than the filter.

DIY fix

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. Foreign object (glass shard, seed, label, bone) jamming the pump impeller
  2. Pump cover loose, mis-seated, or missing after cleaning
  3. Debris carried through after a prior filter/drain clog
  4. Blocked drain hose feeding back into the pump
  5. Failed drain pump or damaged check valve (less common)
The drain path — check in this order
1Tub
2Filter / sump
3Drain pump
4Drain hose
5Disposer / standpipe

Schematic illustration of a typical dishwasher — not your exact model.

Before you start — unplug the appliance and turn off the water supply. You'll be working near water and electrical parts, and drained water can be hot. If a step involves the pump, wiring, or opening the cabinet and you're unsure, stop and call a qualified technician.

Step-by-step fix

1Power off safelyDisconnect power before reaching into the pump area; do not keep running the machine, as a jammed pump can overheat.
2Remove filter and pump coverTake out the tub filter, then lift off the pump cover underneath to expose the impeller.
3Clear the impellerRemove any glass chips, food, or objects and gently turn the impeller by hand to confirm it spins freely.
4Reseat the pump coverRefit the pump cover firmly so it locks in place, then reinstall the filter.
5Check the drain hoseVerify the drain hose is not kinked or clogged before restoring power.
6Reset and testRestore power, reset per the manual, and run a cycle. If E25 returns with a clear pump, the pump may have failed and needs replacement.

Still showing E25?

If you’ve worked through every step and E25 keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

Bosch dishwashers. Bosch dishwashers with the digital E-code display; pump access via the tub floor on current Ascenta/100/300/500/800 series and EU Serie models.

FAQ

What does Bosch E25 mean?

Drain pump blocked or pump cover loose. The drain pump is jammed or its cover is loose or missing, so the machine cannot pump water out. Unlike E24, this points specifically at the pump impeller rather than the filter.

What causes Bosch E25?

The most likely cause is foreign object (glass shard, seed, label, bone) jamming the pump impeller. Other causes include Pump cover loose, mis-seated, or missing after cleaning; Debris carried through after a prior filter/drain clog; Blocked drain hose feeding back into the pump; Failed drain pump or damaged check valve (less common).

Can I fix Bosch E25 myself?

Usually yes. Start by working through the steps above, beginning with: disconnect power before reaching into the pump area; do not keep running the machine, as a jammed pump can overheat.