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EC — BOSCH.DISHWASHER

Bosch Dishwasher
Error Codes Explained.

Every Bosch dishwasher error code decoded — each Bosch error code explained with its meaning, the most common causes, what you can safely check before calling a pro, and when to dial in the certified appliance technicians. Same-day service across Palm Beach County.

Dishwasher Repair Service

Bosch dishwashers display faults as E-codes on the control panel. Bosch's engineering favors precision diagnostics, so each E-code points to a specific subsystem rather than a general symptom — which means the repair path is usually clear once you know the code. Below are the five most common Bosch dishwasher error codes we resolve in Palm Beach County.

Bosch dishwashers are over-engineered relative to most US brands, which is a gift and a cost. They routinely last 12 to 18 years, but replacement parts run 30 to 50% higher than GE or Whirlpool equivalents. Our expert appliance repair team knows which Bosch repairs are worth doing and which are better resolved with a brand-side service campaign or warranty claim.

BOSCH / DISHWASHER

E09— Heating Element Failure

01 — What it means

The flow-through heater (Bosch's tank-less heat element) has failed or is drawing the wrong current. Water does not reach wash temperature, dishes come out cool and poorly cleaned, and drying is significantly reduced.

02 — Most common causes

  • A failed heating element (a 6-to-10-year wear part)
  • A shorted heating element tripping the control board's protection circuit
  • A failed control board unable to command the heater on

03 — Check it yourself (safe steps)

  1. 1Run a full wash cycle and check if the dishes emerge warm to the touch at the end.
  2. 2If the dishes are cool, heating is confirmed failed — do not continue running cycles, as a shorted element can trip your breaker or kitchen GFCI.
  3. 3Unplug the dishwasher for 10 minutes to reset the control board.
  4. 4If E09 returns on the next cycle, the element needs professional replacement.

When to call us

E09 is a standard Bosch repair for our certified technicians. We carry flow-through heaters for the most common 300 and 500 series models — same-day service from West Palm Beach to Boca Raton with a 90-day warranty.

BOSCH / DISHWASHER

E15— Leak Protection Triggered

01 — What it means

Bosch's AquaStop system has detected water in the dishwasher base pan and shut off water flow to prevent flooding. The dishwasher will not operate until the leak is resolved and the float is reset.

02 — Most common causes

  • A slow internal leak from a cracked spray arm bearing or sump gasket
  • A torn door gasket allowing splash to escape the tub
  • Condensation pooling in the base — a false trigger on older units in humid Florida kitchens

03 — Check it yourself (safe steps)

  1. 1Open the door and tilt the dishwasher slightly backward (or follow your manual's procedure) to allow trapped water in the base to drain forward into the tub.
  2. 2Run a short rinse cycle to see if E15 returns — a one-time false trigger will clear on its own.
  3. 3If E15 returns quickly, shut off the water supply valve under the sink and stop using the dishwasher.
  4. 4Do not attempt to open the base pan yourself — Bosch AquaStop has integrated water-valve electronics that are fragile.

When to call us

A repeating E15 is a clear call for professional service. Our team diagnoses Bosch leak sources quickly and repairs at the actual failure point — not by simply resetting the float. 90-day warranty on all Bosch dishwasher work.

BOSCH / DISHWASHER

E22— Filter Blockage / Drain Restriction

01 — What it means

The wash or drain pump is drawing too much current, which Bosch attributes to a filter blockage or drain path restriction. Water movement through the system is restricted.

02 — Most common causes

  • Food debris clogging the triple-mesh filter at the base of the tub
  • A foreign object (olive pit, broken glass, toothpick) jammed against the pump impeller
  • A drain hose kinked or obstructed behind the dishwasher

03 — Check it yourself (safe steps)

  1. 1Remove the bottom rack and lift out the cylindrical filter assembly (counter-clockwise twist on most models).
  2. 2Rinse all three filter layers under running water and inspect the opening beneath for debris.
  3. 3Use a flashlight to check the pump area for foreign objects — but do not reach in with bare hands if broken glass is possible.
  4. 4Reinstall the filter firmly (it should click) and run a rinse cycle to test.

When to call us

If the filter is clean but E22 persists, a foreign object has reached the pump or the drain hose is restricted. Our Wellington and Delray Beach team clears or replaces Bosch drain components same-day.

BOSCH / DISHWASHER

E24— Drain Issue

01 — What it means

The dishwasher is not draining properly within the expected time window. Similar to E22 but focused on the drain-side restriction rather than the wash pump load.

02 — Most common causes

  • A drain hose improperly looped (high point missing or too low)
  • A clogged garbage disposal air gap
  • A failed drain pump motor

03 — Check it yourself (safe steps)

  1. 1Pull the dishwasher forward slightly and inspect the drain hose for a proper high-loop installation — the hose should rise to at least 20 inches under the sink before connecting to the disposal or drain.
  2. 2If you have a garbage disposal, check the air gap on the countertop for clogs and clear it.
  3. 3If the disposal is brand new, verify the shipping knockout plug was removed from the inlet port.
  4. 4Run a drain-only cycle to confirm.

When to call us

If the drain path is clear but E24 returns, the drain pump motor has failed. Our certified technicians carry Bosch drain pumps for every common model — same-day replacement, 90-day warranty.

BOSCH / DISHWASHER

E25— Drain Pump Cover Displaced

01 — What it means

The drain pump cover at the base of the tub is missing, loose, or not properly seated. Without the cover in place, the pump cannot build enough suction to drain the tub.

02 — Most common causes

  • The pump cover was removed during a prior filter cleaning and not reseated
  • A worn cover clip no longer holds the cover firmly
  • Debris preventing the cover from seating fully

03 — Check it yourself (safe steps)

  1. 1Remove the bottom rack and lift out the filter assembly.
  2. 2Look at the circular plastic cover at the base — it should sit flush with the tub floor.
  3. 3Rotate the cover to confirm it is locked into its clip position.
  4. 4If the cover rotates freely with no click, the clip has worn out and needs replacement.

When to call us

A missing or broken drain pump cover is a quick, inexpensive fix. Our Palm Beach County team stocks covers for Bosch 300, 500, and 800 series models — call us and we'll restore your dishwasher to service today.

04 — NEED THE FIX?

Code back? Book Bosch dishwasher repair.

Our expert appliance repair team specializes in Bosch dishwasher diagnostics and carries OEM parts for every code on this page. Same day appliance repair across Palm Beach County — from Jupiter to Boca Raton.

See Dishwasher Repair Service Or Bosch specialist page

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