Bosch Dishwasher Error Codes — E15, E22, E24, E25, E09, E01 Complete Repair Guide

Common Symptoms

• Error code on Bosch display or red LED indicator at bottom of door
• E15 — dishwasher stops mid-cycle and will not restart
• E22 — dishwasher drains slowly or not at all, filter indicator light
• E24 or E25 — standing water at bottom of tub after cycle
• E09 — dishes are cold and wet after a heated dry cycle
• E01 — dishwasher does not respond or displays immediately at power-on

Most Likely Causes

1. 1

   E15 — AquaStop Anti-Flood System Triggered

   Bosch AquaStop is a two-stage flood prevention system: a fail-safe hose with a built-in shutoff solenoid, and a polystyrene float switch in the base pan. When any water enters the base pan — even a few tablespoons from condensation or a door seal drip — the float rises and the AquaStop solenoid cuts off all water supply. E15 will not clear until the base pan is fully drained. The fix on most E15 codes is tilting the dishwasher left 45° to drain the base pan; E15 then clears and the machine runs normally without any part replacement. If E15 recurs after tilting and drying, there is an active leak that must be found and sealed.

2. 2

   E22 — Filter Clogged

   Bosch uses a two-part filter: a cylindrical fine mesh filter (quarter-turn removal) and a flat coarse pre-filter mesh beneath it. When clogged with food debris and grease, the drain pump cannot move water and E22 triggers. Bosch recommends cleaning these filters monthly — most homeowners never do it. E22 is the most common Bosch dishwasher fault and the most preventable. After cleaning, run a rinse cycle to confirm drainage.

3. 3

   E24 — Drain Hose Blocked or Kinked

   E24 means the drain cycle did not complete in the expected time — water remains in the tub. Primary causes: drain hose kinked behind the unit, the hose inserted too deeply into the standpipe creating a water seal, garbage disposal knockout plug not removed during installation, or a clogged air gap on the sink. E24 differs from E25 in that E24 is an external flow restriction (hose/connection) rather than an internal blockage at the pump.

4. 4

   E25 — Drain Pump Impeller Blocked

   E25 means the drain pump is obstructed — the impeller cannot rotate to move water. Glass shards, cherry pits, bone chips, and toothpick fragments are the most common impeller-blockers. The pump may hum loudly during drain phase with E25 as the motor tries to spin against the obstruction. Access the pump impeller through the filter opening in the sump — remove filter assembly, look into the sump cavity, and extract debris with needle-nose pliers.

5. 5

   E09 — Heating Element or NTC Thermistor Fault

   E09 means the water is not reaching target temperature. Primary cause is a failed heating element — test resistance across the element terminals with power off: spec varies by model (typically 20–40Ω, but Bosch element resistance depends on wattage which varies by model year). Use the FD (Fabrication Date) number stamped on the door jamb to identify the exact replacement part number — Bosch elements are model and FD-specific because Bosch changes heater specs across production runs. The FD number is a 4-digit code (e.g., FD 9612) stamped on the label inside the door frame. A failed NTC thermistor can also cause E09 — the thermistor mounts in the sump and reads approximately 5,000–10,000Ω at room temperature depending on the specific part. Low rinse aid can also cause E09 on some models by affecting thermistor-based cycle termination logic.

6. 6

   E01 — Control Board Communication or Internal Fault

   E01 is a general control board fault — the main board failed its self-check at startup or lost communication with a subsystem. Causes: power surge, moisture on the board connector, or board component failure. A 5-minute full power-off reset clears E01 in most cases. If E01 returns after reset, inspect the main harness connectors at the control board for corrosion or looseness before condemning the board — a partially seated connector mimics board failure.

Quick DIY Checks

1. 1Power-cycle reset and diagnostic mode entry: unplug the Bosch dishwasher for 5 minutes. Restore power. If E01 clears, the fault was transient. To enter diagnostic mode on 500 and 800 series models (SHPM88Z75N, SHPM65Z55N, SHEM63W55N, SHP65TL5UC, SHSM63W55N): close the door and press and hold the two rightmost buttons simultaneously for 3 seconds or more until all program indicator lights illuminate. The dishwasher will run through a complete self-test including fill, wash motor, heater, and drain pump. Fault codes from the self-test cycle identify which subsystem is actually failing.
2. 2Fix E15 — AquaStop base pan drain procedure: unplug the dishwasher. Open the door and place thick towels in front of the unit. Tip the dishwasher to the left at approximately 45 degrees — tilt it left (not forward) so the base pan water drains out through the gap at the bottom front. Hold for 20–30 seconds. Water draining from the base indicates the float was triggered by accumulated condensation or a small one-time drip rather than an active leak. Return the dishwasher to upright position, plug in, and run a short rinse cycle. E15 should clear. If E15 returns within a few cycles, there is an ongoing drip — inspect the door seal perimeter, all hose connections inside the door, and the sump gasket.
3. 3Fix E22 — Bosch filter cleaning procedure: open the dishwasher and remove the lower rack. At the center-bottom of the tub, locate the cylindrical fine filter with the raised handle — rotate it counterclockwise approximately a quarter-turn and lift it out. Beneath it is a flat coarse mesh filter — lift this out as well. Rinse both filters under hot running water. Use a soft toothbrush on the fine mesh cylindrical filter to clear grease buildup — soap helps. Bosch filters must be fully seated and locked when reinstalled: insert the flat filter first, then seat the cylindrical filter and rotate clockwise until it clicks. Run a short rinse cycle to confirm E22 is cleared.

Repair vs Replace

Recommended Tools & Parts

• Bosch Dishwasher Fine + Coarse Filter Set

  Replacement two-part filter kit for Bosch 500 and 800 series dishwashers. Includes cylindrical fine mesh filter (quarter-turn) and flat coarse pre-filter. Clean monthly to prevent E22. Confirm compatibility with your SHPM or SHEM model number.

  $20–$45

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• Bosch Dishwasher Drain Pump — 12014980

  Replacement drain pump motor for Bosch dishwashers. Part 12014980 fits many 500 and 800 series models (SHPM88Z75N, SHPM65Z55N, SHEM63W55N). Required when E24/E25 persists after clearing impeller obstructions. Verify model compatibility before ordering.

  $40–$80

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• Bosch Dishwasher Heating Element (FD-specific)

  Replacement heating element for Bosch dishwashers. Must be ordered using the FD (Fabrication Date) number from the door jamb label — Bosch changes heater specifications across production runs. Common part numbers include 9000706449 and 00263552. Fixes E09 heating errors.

  $35–$80

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• Bosch AquaStop Inlet Hose Assembly

  The complete AquaStop water supply hose with integrated flood-protection solenoid. Required if E15 recurs after base pan draining and leak source is traced to the AquaStop hose itself. Model-specific — use your SHPM or SHEM model number to identify the correct part.

  $45–$90

  Buy on Amazon →

• Bosch Dishwasher Door Seal / Gasket

  Perimeter door gasket for Bosch dishwashers. A cracked or pulling gasket allows water into the base pan and triggers E15. Inspect for deformation at the bottom corners — most common failure point. Replacement requires no special tools.

  $20–$50

  Buy on Amazon →

Links are Amazon affiliate links (tag: fixitfastai-20). Prices are estimates.

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