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OEM VERIFIED BENCH
OFFICIAL FAULT CODEE24
Bosch
Bosch // OFFICIAL DIAGNOSTIC BENCH

Bosch E24

DishwasherDrainage System & Drain Pump
Premium built-in dishwasher with open illuminated stainless steel interior and precision spray arms
Dishwasher
Other Brands Sharing Code E24:SiemensE24ElectroluxE24AEGE24NeffE24ZanussiE24Arthur MartinE24GaggenauE24CastorE24FaureE24FrigidaireE24

Symptom / Description

FAULT

Non-return valve leak / Drainage impossible / Drain pump cover missing or detached / Drain pump blockage / Program termination

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

Non-return valve leak; kinked, blocked hose, incorrect drain height, missing/detached pump cover; drain pump blockage.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Check valve seal; check water outlet (kinked, blocked hose, drain height, pump cover); reposition the cover; check for foreign objects in the drain pump.
AI diagnostic workshop engine analyzing appliance circuit schematics and error telemetry in real time
AI WORKSHOP PROTOCOL ENGINE
Direct extraction from OEM factory manuals & wiring schematics

Field Actions

DISPATCH
Need Help? Call a Certified TechnicianWorldwide Bosch Parts Finder
Electrical & Safety Protocol

Always disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.

CALIBRATED BENCH PROTOCOL // CAT III 600V

Workshop Verification & Safety Checklist

WORKSHOP VERIFICATION PROTOCOLDrainage System & Drain PumpDishwasher
2. Multimeter & Electrical Bench Tests (Ω)
MODE: OHMMETER (Ω)AUTO-RANGE
Precision digital multimeter probes measuring electrical resistance in Ohms on an appliance control board
CALIBRATED METROLOGY RESISTANCE BENCH (CAT III)
Nominal Resistance (Ω)
160Ω–220Ω (Sync 230V) / 20Ω–45Ω (3-Phase BLDC)NOMINAL
0 Ω (SHORT)CALIBRATED BAND∞ OL (OPEN)
▲ NOMINAL OPERATING WINDOW
Target Component:Drain Pump Motor Stator Coils
Test Pins & Connections
PROBE (+)
PROBE (-)
Across pump motor spade terminals (L-N unclipped)
Tolerance & Diagnostic Criteria±10% balance. Insulation resistance between coil and motor chassis must exceed 20MΩ.
1. Pre-Intervention Electrical Safety Protocols
  • !Electrical Safety Protocol: Isolate 230V mains power before accessing the lower pump housing.
  • !Prepare a shallow basin and absorption towels: expect 3 to 10 liters of stagnant trapped water upon filter opening.
  • !Beware of sharp foreign objects (broken glass, needles, screws) trapped inside the impeller cavity.
3. Preliminary Mechanical & Visual Checks
  • Unscrew coin trap filter and clear all foreign debris (coins, hairpins, bra underwires).
  • Rotate pump impeller manually: synchronous magnetic rotors should snap cleanly in 90° intervals without jamming.
  • Check drain hose for kinks, blockages, or unpunched sink spigots; verify drain height is between 65cm and 100cm.
Perform these diagnostic steps before triggering AI Deep Search or replacing boards.Certified Workshop Routine

Frequently Asked Questions: Bosch E24

FAQ TREE
What does error code E24 mean on a Bosch appliance?

Bosch error code E24 indicates: Non-return valve leak / Drainage impossible / Drain pump cover missing or detached / Drain pump blockage / Program termination.

What is the root cause of Bosch error code E24?

The primary root cause for Bosch code E24 is: Non-return valve leak; kinked, blocked hose, incorrect drain height, missing/detached pump cover; drain pump blockage..

How do I fix or resolve Bosch error code E24?

To resolve error code E24: Check valve seal; check water outlet (kinked, blocked hose, drain height, pump cover); reposition the cover; check for foreign objects in the drain pump.

Is it safe to clear Bosch error code E24 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Bosch code E24 persists, the physical component causing Non-return valve leak; kinked, blocked hose, incorrect drain height, missing/detached pump cover; drain pump blockage. must be inspected or replaced.

How do I test electrical resistance for Bosch code E24 using a multimeter?

Set a digital multimeter to ohms (Ω). Disconnect power and test Drain Pump Motor Stator Coils across Across pump motor spade terminals (L-N unclipped). Expected nominal reading is 160Ω–220Ω (Sync 230V) / 20Ω–45Ω (3-Phase BLDC). Tolerance: ±10% balance. Insulation resistance between coil and motor chassis must exceed 20MΩ..

What safety protocol must be followed before servicing Bosch code E24?

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.

Community Verification

COMMUNITY

Did this solution resolve the issue?

SEMANTIC KNOWLEDGE GRAPH // BOSCH

Related Bosch Dishwasher Error Codes

Diagnostic Link Mesh14 OEM Cross-References

Cross-referenced diagnostic codes for technicians inspecting similar component subsystems.

E25Drainage System & Drain Pump
Drain pump blockage / Drain pump cover missing or detached / Program termination
Inspect Protocol
E26Drive Motor, Inverter & Tachometer Sensor
Error with the water switch (diverter valve). The wash cycle stops and dishes may not be clean.
Inspect Protocol
E28General System & Mechanical Integration
AquaSensor error / Operation without AquaSensor / AquaSensor calibration unsuccessful
Inspect Protocol
E4Drive Motor, Inverter & Tachometer Sensor
Water switch cannot be positioned
Inspect Protocol
E5Drive Motor, Inverter & Tachometer Sensor
Bosch E5: Motor drive or inverter rotation anomaly in Dishwasher; drum/motor fails to spin a...
Inspect Protocol
E6General System & Mechanical Integration
Bosch E6: Operational cycle fault detected during Dishwasher program execution.
Inspect Protocol
E7General System & Mechanical Integration
Bosch E7: Operational cycle fault detected during Dishwasher program execution.
Inspect Protocol
HElectronic Control Board (PCB) & Bus Communications
After the flash fires, "H" appears on the display
Inspect Protocol
h:00 – h:24Drainage System & Drain Pump
Delay start countdown display active (h:00 to h:24); wash cycle execution deferred.
Inspect Protocol
P0 Switchmirror 1Electronic Control Board (PCB) & Bus Communications
Error message „P0 Switchmirror 1“ or barre colorate south display with capacitive control pa...
Inspect Protocol
1Electronic Control Board (PCB) & Bus Communications
Error in the Aquasensor system (Error in Aquasensor system)
Inspect Protocol
16Electronic Control Board (PCB) & Bus Communications
Bosch 16: Operational cycle fault detected during Dishwasher program execution.
Inspect Protocol
2Electronic Control Board (PCB) & Bus Communications
Heizfehler (Heating error)
Inspect Protocol
4Water Level Pressure Switch & Air Dome
Bosch 4: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum ope...
Inspect Protocol
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