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 CODEE5
Ardo
Ardo // OFFICIAL DIAGNOSTIC BENCH

Ardo E5

DishwasherWater Level Pressure Switch & Air Dome
Premium built-in dishwasher with open illuminated stainless steel interior and precision spray arms
Dishwasher
Other Brands Sharing Code E5:BoschE5LGE5ElectroluxE5AEGE5BekoE5HaierE5CandyE5ZanussiE5Arthur MartinE5PhilipsE5

Symptom / Description

FAULT

Ardo E5: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

The pressure sensor has detected that the water level is too high inside the tub.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Check the water inlet valve to ensure it's not stuck open, letting water in continuously. Inspect the pressure sensor and its tubing for blockages.
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 Ardo 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 DomeDishwasher
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: Ardo E5

FAQ TREE
What does error code E5 mean on a Ardo appliance?

Ardo error code E5 indicates: Ardo E5: Water level pressure sensor/switch frequency anomaly detected in Dishwasher..

What is the root cause of Ardo error code E5?

The primary root cause for Ardo code E5 is: The pressure sensor has detected that the water level is too high inside the tub..

How do I fix or resolve Ardo error code E5?

To resolve error code E5: Check the water inlet valve to ensure it's not stuck open, letting water in continuously. Inspect the pressure sensor and its tubing for blockages.

Is it safe to clear Ardo error code E5 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Ardo code E5 persists, the physical component causing The pressure sensor has detected that the water level is too high inside the tub. must be inspected or replaced.

How do I test electrical resistance for Ardo code E5 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 Ardo code E5?

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 // ARDO

Related Ardo Dishwasher Error Codes

Diagnostic Link Mesh14 OEM Cross-References

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

E6NTC Temperature Sensor & Thermistor
Temperature probe (NTC) error
Inspect Protocol
E7Water Level Pressure Switch & Air Dome
Ardo E7: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum ope...
Inspect Protocol
F9Drive Motor, Inverter & Tachometer Sensor
Ardo F9: Motor drive or inverter rotation anomaly in Dishwasher; drum/motor fails to spin at...
Inspect Protocol
HHeating Element, Thermostat & Safety Fuse
Ardo H: Water/air heating failure in Dishwasher; heating circuit does not reach set temperat...
Inspect Protocol
AL01General System & Mechanical Integration
Ardo AL01: Operational cycle fault detected during Dishwasher program execution.
Inspect Protocol
AL05Drainage System & Drain Pump
Drain pump electrical fault
Inspect Protocol
E1Water Inlet Valve, Aquastop & Flowmeter
Water inlet timeout / Aquastop active
Inspect Protocol
E3Drainage System & Drain Pump
Ardo E3: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water wit...
Inspect Protocol
E4Heating Element, Thermostat & Safety Fuse
Water heating element fault
Inspect Protocol
ER03General System & Mechanical Integration
Stuck button on touch control
Inspect Protocol
F01NTC Temperature Sensor & Thermistor
Temperature sensor open circuit
Inspect Protocol
F02NTC Temperature Sensor & Thermistor
Temperature sensor short circuit
Inspect Protocol
F03NTC Temperature Sensor & Thermistor
Ardo F03: NTC temperature sensor signal out of range (open or short circuit) in Oven / Micro...
Inspect Protocol
F04Electronic Control Board (PCB) & Bus Communications
Ardo F04: Operational cycle fault detected during Oven / Microwave program execution.
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