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OEM VERIFIED BENCH
OFFICIAL FAULT CODEA03
Indesit
Indesit // OFFICIAL DIAGNOSTIC BENCH

Indesit A03

DishwasherDrainage System & Drain Pump
Premium built-in dishwasher with open illuminated stainless steel interior and precision spray arms
Dishwasher
Other Brands Sharing Code A03:V-ZugA03ScholtèsA03

Symptom / Description

FAULT

Dishwasher does not drain, water left at the bottom

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

Drain timeout. The machine is taking too long to empty the water.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Clean the filters. Check the drain pump for blockages. Ensure the drain hose is not kinked or blocked.
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 Indesit 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: Indesit A03

FAQ TREE
What does error code A03 mean on a Indesit appliance?

Indesit error code A03 indicates: Dishwasher does not drain, water left at the bottom.

What is the root cause of Indesit error code A03?

The primary root cause for Indesit code A03 is: Drain timeout. The machine is taking too long to empty the water..

How do I fix or resolve Indesit error code A03?

To resolve error code A03: Clean the filters. Check the drain pump for blockages. Ensure the drain hose is not kinked or blocked.

Is it safe to clear Indesit error code A03 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Indesit code A03 persists, the physical component causing Drain timeout. The machine is taking too long to empty the water. must be inspected or replaced.

How do I test electrical resistance for Indesit code A03 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 Indesit code A03?

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 // INDESIT

Related Indesit Dishwasher Error Codes

Diagnostic Link Mesh14 OEM Cross-References

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

A04NTC Temperature Sensor & Thermistor
Water not heating or cycle takes too long
Inspect Protocol
A05Water Level Pressure Switch & Air Dome
Dishes are not being cleaned properly
Inspect Protocol
A06Water Inlet Valve, Aquastop & Flowmeter
Dishwasher stops early in the cycle, no water inside
Inspect Protocol
A07Drive Motor, Inverter & Tachometer Sensor
Water is not being directed to the correct spray arm
Inspect Protocol
A08Heating Element, Thermostat & Safety Fuse
Water is cold, dishes remain dirty
Inspect Protocol
A10Water Inlet Valve, Aquastop & Flowmeter
Machine stops and beeps, may not have filled
Inspect Protocol
AL01Drainage System & Drain Pump
Dishwasher has stopped with water in the base
Inspect Protocol
F2Water Inlet Valve, Aquastop & Flowmeter
Dishwasher has flashing LED 2 and won't fill
Inspect Protocol
A01Drainage System & Drain Pump
Dishwasher stops and beeps, water in the base
Inspect Protocol
A02Water Inlet Valve, Aquastop & Flowmeter
Dishwasher fails to fill with water
Inspect Protocol
A1Refrigeration Compressor, Defrost Heater & PTC Relay
Alarm sounds, warning light flashes, freezer is not cold enough
Inspect Protocol
A2Refrigeration Compressor, Defrost Heater & PTC Relay
Alarm sounds, fridge is not cold enough
Inspect Protocol
F01NTC Temperature Sensor & Thermistor
Oven is not heating correctly
Inspect Protocol
F02Drive Motor, Inverter & Tachometer Sensor
Drum does not turn or turns intermittently
Inspect Protocol
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