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 CODEF1055
Miele
Miele // OFFICIAL DIAGNOSTIC BENCH

Miele F1055

OvenNTC Temperature Sensor & Thermistor
Integrated luxury convection oven and induction cooktop with illuminated touch controls
Oven

Symptom / Description

FAULT

The machine displays a drying error and the temperature regulation inside the machine seems erratic.

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

The redundant internal air temperature sensor, which plays a crucial role in precisely controlling the drying process, is faulty or disconnected.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Turn off the device before any intervention. Locate the internal air temperature sensor in the ventilation duct. Examine its electrical connections. Test the sensor for continuity and ohmic resistance, then replace it if it is found to be faulty.
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 Miele 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 PROTOCOLNTC Temperature Sensor & ThermistorOven / Microwave
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)
4.8kΩ–12kΩ (at 20°C–25°C)NOMINAL
0 Ω (SHORT)CALIBRATED BAND∞ OL (OPEN)
▲ NOMINAL OPERATING WINDOW
Target Component:NTC Temperature Sensor Probe (Thermistor)
Test Pins & Connections
PROBE (+)
PROBE (-)
Across sensor pins 1-2 (unplugged harness)
Tolerance & Diagnostic CriteriaNegative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit.
1. Pre-Intervention Electrical Safety Protocols
  • !Electrical Safety Protocol: Disconnect 230V electrical mains power before removing appliance side or rear panels.
  • !Ensure tub water or heating chamber has cooled below 30°C before unclipping thermistor probe.
  • !Use CAT III 600V/1000V insulated test probes when tng at PCB edge connectors.
3. Preliminary Mechanical & Visual Checks
  • Inspect sensor immersion sleeve for calcification, limescale scale, or thermal paste degradation.
  • Check wiring harness for pinch points, chafing against chassis metal, and terminal pin oxidation.
  • Verify probe is firmly seated in its rubber grommet or bracket inside the water/air circuit.
Perform these diagnostic steps before triggering AI Deep Search or replacing boards.Certified Workshop Routine

Frequently Asked Questions: Miele F1055

FAQ TREE
What does error code F1055 mean on a Miele appliance?

Miele error code F1055 indicates: The machine displays a drying error and the temperature regulation inside the machine seems erratic..

What is the root cause of Miele error code F1055?

The primary root cause for Miele code F1055 is: The redundant internal air temperature sensor, which plays a crucial role in precisely controlling the drying process, is faulty or disconnected..

How do I fix or resolve Miele error code F1055?

To resolve error code F1055: Turn off the device before any intervention. Locate the internal air temperature sensor in the ventilation duct. Examine its electrical connections. Test the sensor for continuity and ohmic resistance, then replace it if it is found to be faulty.

Is it safe to clear Miele error code F1055 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Miele code F1055 persists, the physical component causing The redundant internal air temperature sensor, which plays a crucial role in precisely controlling the drying process, is faulty or disconnected. must be inspected or replaced.

How do I test electrical resistance for Miele code F1055 using a multimeter?

Set a digital multimeter to ohms (Ω). Disconnect power and test NTC Temperature Sensor Probe (Thermistor) across Across sensor pins 1-2 (unplugged harness). Expected nominal reading is 4.8kΩ–12kΩ (at 20°C–25°C). Tolerance: Negative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit..

What safety protocol must be followed before servicing Miele code F1055?

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 // MIELE

Related Miele Oven / Microwave Error Codes

Diagnostic Link Mesh14 OEM Cross-References

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

F1056NTC Temperature Sensor & Thermistor
Inconsistencies are observed in washing temperature; the cycle may be abnormally long or short.
Inspect Protocol
F1057NTC Temperature Sensor & Thermistor
The unit displays a system error code and refuses to start any cycle involving water tempera...
Inspect Protocol
F1058NTC Temperature Sensor & Thermistor
The drying program does not work correctly, the laundry remains damp or, conversely, is over...
Inspect Protocol
F1059NTC Temperature Sensor & Thermistor
The device reports an error and interrupts the current cycle, because the temperature inside...
Inspect Protocol
F1060NTC Temperature Sensor & Thermistor
The progress of the device cycle is disrupted, with intermittent errors linked to ambient te...
Inspect Protocol
F1061NTC Temperature Sensor & Thermistor
The appliance is experiencing water heating errors, cycles are interrupted, or wash temperat...
Inspect Protocol
F1062NTC Temperature Sensor & Thermistor
The appliance fails to produce steam or the water is not heated properly in the boiler.
Inspect Protocol
F1063NTC Temperature Sensor & Thermistor
The drying performance of the device is poor and an error code related to air circulation or...
Inspect Protocol
F1064Electronic Control Board (PCB) & Bus Communications
The device does not respond to any commands, does not start or certain specific functions ar...
Inspect Protocol
F1065Electronic Control Board (PCB) & Bus Communications
It is impossible to select a program, the rotary knob turns without effect or the program di...
Inspect Protocol
F1066General System & Mechanical Integration
The device does not detect the insertion of the cart or basket, preventing any cycle from st...
Inspect Protocol
F1067General System & Mechanical Integration
The device displays a critical error code and shuts down completely, often related to the dr...
Inspect Protocol
F1068General System & Mechanical Integration
The drying process is excessively slow or completely ineffective, and an airflow error messa...
Inspect Protocol
F1069Water Level Pressure Switch & Air Dome
No steam is produced and the device reports a water level or boiler filling fault.
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