Skip to content
CodesErreur.comSWISS PRO ENGINE
Core Diagnostics
DiagnosticsBrandsOEM ManualsSpecialistsAI EngineerPRO
Workshop Tools
Diagnostic ToolsNEW
Hardware interfaces & test probes
Find Rating Plate
Locate exact E-Nr, PNC & serial codes
Parts Locator
Global OEM spare parts suppliers
Community & Career
Academy & Courses
Masterclasses by senior technicians
Certification ExamsPRO
Verify your B2B technical credentials
Elite Forum
Peer-to-peer field troubleshooting
Tech Jobs
B2B recruitment & field opportunities
Leaderboard
Global ranking of verified specialists
Certified Appliance Engineering EcosystemApply for Certification →
Language Selector
Account & Access
Upgrade PRO
Back to Search
OEM VERIFIED BENCH
OFFICIAL FAULT CODEE02
Foster
Foster // OFFICIAL DIAGNOSTIC BENCH

Foster E02

Washing MachineWater Level Pressure Switch & Air Dome
Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum
Washing Machine
Other Brands Sharing Code E02:BoschE02SiemensE02SamsungE02LGE02ElectroluxE02AEGE02BekoE02HaierE02CandyE02NeffE02

Symptom / Description

FAULT

Foster E02: Water inlet / filling timeout in Washing Machine; appliance fails to fill to minimum operational level.

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

Machine is not filling with water in the allotted time. The water tap is closed, inlet hose is kinked, or the water inlet valve is blocked or faulty.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Ensure the water supply tap is fully open. Check the inlet hose for kinks. Clean the filter screen inside the inlet valve connection.
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 Foster 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 PROTOCOLWater Level Pressure Switch & Air DomeWashing Machine
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)
Mechanical: Continuity 0.0Ω–0.2Ω (Empty: 11-12, Full: 11-14). Electronic: 20Ω–45Ω coil resistance.NOMINAL
0 Ω (SHORT)CALIBRATED BAND∞ OL (OPEN)
▲ NOMINAL OPERATING WINDOW
Target Component:Mechanical Pressure Switch Contacts / Inductive Frequency Sensor
Test Pins & Connections
PROBE (+)
PROBE (-)
Across switch spade contacts with harness unplugged; electronic output: 40Hz–50Hz frequency signal
Tolerance & Diagnostic CriteriaMechanical switch contacts must transition cleanly on gentle breath pressure. Coil ~22Ω ±5%.
1. Pre-Intervention Electrical Safety Protocols
  • !Electrical Safety Protocol: Cut 230V mains power before accessing the upper chassis or pressure switch terminals.
  • !Drain appliance tub completely before disconnecting pressure switch sensing hoses.
  • !Never blow high-pressure compressed air into electronic analog pressure sensors: internal diaphragms will rupture!
3. Preliminary Mechanical & Visual Checks
  • Disconnect the silicone pressure tube from the lower air trap and inspect for soap sludge, lint, or water blockage.
  • Inspect the flexible rubber hose along its entire length for pinholes, cracks, or loose clamp fit.
  • Thoroughly flush the lower compression chamber (air dome) with hot water to dissolve detergent buildup.
Perform these diagnostic steps before triggering AI Deep Search or replacing boards.Certified Workshop Routine

Frequently Asked Questions: Foster E02

FAQ TREE
What does error code E02 mean on a Foster appliance?

Foster error code E02 indicates: Foster E02: Water inlet / filling timeout in Washing Machine; appliance fails to fill to minimum operational level..

What is the root cause of Foster error code E02?

The primary root cause for Foster code E02 is: Machine is not filling with water in the allotted time. The water tap is closed, inlet hose is kinked, or the water inlet valve is blocked or faulty..

How do I fix or resolve Foster error code E02?

To resolve error code E02: Ensure the water supply tap is fully open. Check the inlet hose for kinks. Clean the filter screen inside the inlet valve connection.

Is it safe to clear Foster error code E02 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Foster code E02 persists, the physical component causing Machine is not filling with water in the allotted time. The water tap is closed, inlet hose is kinked, or the water inlet valve is blocked or faulty. must be inspected or replaced.

How do I test electrical resistance for Foster code E02 using a multimeter?

Set a digital multimeter to ohms (Ω). Disconnect power and test Mechanical Pressure Switch Contacts / Inductive Frequency Sensor across Across switch spade contacts with harness unplugged; electronic output: 40Hz–50Hz frequency signal. Expected nominal reading is Mechanical: Continuity 0.0Ω–0.2Ω (Empty: 11-12, Full: 11-14). Electronic: 20Ω–45Ω coil resistance.. Tolerance: Mechanical switch contacts must transition cleanly on gentle breath pressure. Coil ~22Ω ±5%..

What safety protocol must be followed before servicing Foster code E02?

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 // FOSTER

Related Foster Washing Machine Error Codes

Diagnostic Link Mesh14 OEM Cross-References

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

E03Drainage System & Drain Pump
Foster E03: Water drainage failure detected in Washing Machine; drain pump cannot evacuate w...
Inspect Protocol
E05NTC Temperature Sensor & Thermistor
Temperature sensor (NTC) error
Inspect Protocol
E07Drive Motor, Inverter & Tachometer Sensor
Foster E07: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to...
Inspect Protocol
E1Water Level Pressure Switch & Air Dome
Foster E1: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum o...
Inspect Protocol
E2Drainage System & Drain Pump
Foster E2: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water w...
Inspect Protocol
E3NTC Temperature Sensor & Thermistor
Foster E3: NTC temperature sensor signal out of range (open or short circuit) in Dishwasher.
Inspect Protocol
E4Water Level Pressure Switch & Air Dome
Overfill or leak detected
Inspect Protocol
F1Refrigeration Compressor, Defrost Heater & PTC Relay
Refrigerator sensor fault
Inspect Protocol
F3Refrigeration Compressor, Defrost Heater & PTC Relay
Foster F3: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment ...
Inspect Protocol
F4Electronic Control Board (PCB) & Bus Communications
Control board communication error
Inspect Protocol
F5Drive Motor, Inverter & Tachometer Sensor
Door lock fault (Pyrolytic models)
Inspect Protocol
HRefrigeration Compressor, Defrost Heater & PTC Relay
Foster H: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment t...
Inspect Protocol
STOPDoor Lock Mechanism & Safety Interlock
Foster STOP: Door lock safety interlock fault in Oven / Microwave; door switch contact fails...
Inspect Protocol
E01Door Lock Mechanism & Safety Interlock
Foster E01: Door lock safety interlock fault in Washing Machine; door switch contact fails t...
Inspect Protocol
CodesErreur.com

Premium appliance diagnostics & repair database.
Powered by AI to help certified technicians worldwide.

Trusted by professionals in CH & FR

Platform

Search DatabasePRO Diagnostic AIPRODiagnostic ToolsBrands

Workshop Tools

Brands (87)OEM ManualsFind Rating PlateParts Locator

For Technicians

SpecialistsTechnician ForumTech JobsPremium

Corporate

Terms of ServicePrivacy PolicyOfficial Swiss Repair Partner: Electroassistance
OPERATIONAL SAFETY SPECIFICATION

SAFETY DISCLAIMER

The technical information, diagnostic guides, error codes, and AI-generated suggestions provided on this website are intended exclusively for certified and qualified professionals. Appliance repair involves severe electrical hazards, high voltages, and mechanical risks that can result in fatal injury or severe property damage. If you are not a trained technician, do not attempt to repair any appliances. CodesErreur assumes no responsibility or liability for any damage, injury, or consequential losses resulting from the use of the information provided on this platform. You use all information entirely at your own risk.

© 2026 CodesErreur. All rights reserved.

Official Swiss Repair Partner: Electroassistance Terms of Service Privacy Policy