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
Alaska • Central Diagnostic Dictionary
30 Verified Codes in Database

Alaska Error Codes & Diagnostics

Access our premium database of error codes, common faults, and professional repair solutions for Alaska appliances.

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum
CodeAppliancesFault / DiagnosticsRepair InstructionsAction
E01
Washing Machine
Door Lock Mechanism & Safety Interlock

Alaska E01: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.

The door is not closed properly, the door lock mechanism is faulty, or there is a wiring issue to the lock.

Ensure the door is firmly closed. Check the door lock for damage. Inspect wiring between the lock and the main control board. Replace the door lock if faulty.

Diagnose
E1
Hob / Cooktop
General System & Mechanical Integration

Alaska E1: Water/air heating failure in Hob / Cooktop; heating circuit does not reach set temperature.

The internal temperature of the hob's electronics is too high. This could be due to a blocked cooling vent or a faulty cooling fan.

Ensure that the ventilation space underneath the hob is clear and not obstructed. Check if the internal cooling fan is running. Allow the hob to cool down completely.

Diagnose
E02
Washing Machine
Water Inlet Valve, Aquastop & Flowmeter

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

The machine is not filling with water within the expected time. This could be due to a closed water tap, a kinked inlet hose, a blocked filter in the inlet valve, or a faulty pressure sensor.

Check that the water supply is on and the hose is not kinked. Clean the filter in the water inlet valve. If the problem persists, the pressure sensor or inlet valve may need replacement.

Diagnose
E2
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

Alaska E2: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment temperature deviation.

The temperature sensor for the freezer compartment has failed.

The compressor may run continuously to prevent thawing. The freezer temperature sensor needs to be replaced.

Diagnose
E03
Washing Machine
Drainage System & Drain Pump

Alaska E03: Water drainage failure detected in Washing Machine; drain pump cannot evacuate water within safety time limit.

The machine is not draining water correctly. The drain filter is blocked, the drain hose is kinked or blocked, or the drain pump is faulty.

Clean the drain pump filter located at the bottom front of the machine. Check the drain hose for kinks or blockages. Test the drain pump for operation; replace if it's not working.

Diagnose
E3
Hob / Cooktop
General System & Mechanical Integration

Alaska E3: Operational cycle fault detected during Hob / Cooktop program execution.

The hob has detected that the incoming mains voltage is too high for safe operation.

Have a qualified electrician check your home's electrical supply. The hob will not operate until the voltage returns to a safe level.

Diagnose
E04
Washing Machine
Water Level Pressure Switch & Air Dome

Overfill error / Too much water

The water level sensor (pressure switch) has detected too much water in the drum. This is often caused by a faulty pressure sensor or a stuck-open water inlet valve.

Disconnect from power to reset. If the error repeats, inspect the pressure sensor and its connecting hose for blockages or damage. The inlet valve might also need to be replaced if it's letting water in when it shouldn't.

Diagnose
E4
Hob / Cooktop
General System & Mechanical Integration

Alaska E4: Operational cycle fault detected during Hob / Cooktop program execution.

The incoming mains voltage is too low for the hob to operate correctly.

An electrician should check the household electrical supply. This can be caused by issues in the local power grid or faulty home wiring.

Diagnose
E05
Washing Machine
NTC Temperature Sensor & Thermistor

Alaska E05: NTC temperature sensor signal out of range (open or short circuit) in Washing Machine.

The water is not heating up to the required temperature. The heating element has failed, or the NTC temperature sensor is faulty or disconnected.

Test the heating element for continuity with a multimeter. Check the NTC sensor's resistance and its wiring. Replace the faulty component.

Diagnose
E5
Hob / Cooktop
NTC Temperature Sensor & Thermistor

Cooking zone temperature sensor failure

The temperature sensor for a specific cooking zone has failed.

The hob will likely disable the affected cooking zone. The sensor is part of the induction coil or radiator assembly and requires replacement by a technician.

Diagnose
E06
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Alaska E06: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to spin at target RPM.

A fault with the main drive motor has been detected, often related to the motor's tacho sensor which measures speed. Could also be worn motor brushes.

Check the motor's electrical connections and carbon brushes for wear. Inspect the tacho coil and its magnet. Replace brushes or the entire motor if necessary.

Diagnose
E6
Hob / Cooktop
Electronic Control Board (PCB) & Bus Communications

Communication error with power module

The user interface board has lost communication with the power board that controls the cooking zones.

This indicates an internal electronic fault. Check internal wiring connections. The power module or the interface may need to be replaced.

Diagnose
E7
Dishwasher
NTC Temperature Sensor & Thermistor

Temperature sensor (NTC) short circuit

The temperature sensor is providing an incorrect, short-circuited reading to the main control board.

The NTC sensor has failed and must be replaced.

Diagnose
E08
Washing Machine
Door Lock Mechanism & Safety Interlock

Alaska E08: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.

The laundry inside the drum is not distributed evenly, preventing the machine from reaching high spin speeds safely.

Stop the machine, open the door, and redistribute the laundry more evenly. Avoid washing single heavy items like a bath mat on its own. Restart the spin cycle.

Diagnose
E8
Dishwasher
Drive Motor, Inverter & Tachometer Sensor

Alaska E8: Motor drive or inverter rotation anomaly in Dishwasher; drum/motor fails to spin at target RPM.

The appliance is unable to direct water to the correct spray arm. The diverter valve, which switches water flow between the upper and lower arms, is stuck or faulty.

Inspect the diverter valve motor and mechanism for blockages or failure. It may need to be cleaned or replaced.

Diagnose
E9
Refrigerator / Freezer
Electronic Control Board (PCB) & Bus Communications

Alaska E9: Operational cycle fault detected during Refrigerator / Freezer program execution.

A fault has been detected with the automatic icemaker module.

Check that the icemaker is turned on and properly seated. Inspect for any ice blockages. The icemaker module itself may need replacement.

Diagnose
E10
Washing Machine
Electronic Control Board (PCB) & Bus Communications

Alaska E10: Operational cycle fault detected during Washing Machine program execution.

A communication failure has occurred between the main control board and the display board.

Check the wiring harness and connectors between the main PCB and the user interface/display board for loose connections or damage. The fault may be with either board.

Diagnose
E21
Washing Machine
Drainage System & Drain Pump

Draining system obstructed

Similar to E03, but specifically points to a severe blockage in the drain system that the pump is struggling against.

Perform a thorough check and cleaning of the drain filter, pump impeller chamber, and the entire length of the drain hose.

Diagnose
E30
Washing Machine
Door Lock Mechanism & Safety Interlock

Alaska E30: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.

The door lock is detected as faulty or has failed to engage correctly when commanded.

Check for obstructions in the door latch. Inspect the door lock mechanism for physical damage or electrical failure. Replace the door lock assembly.

Diagnose
ER21
Oven / Microwave
NTC Temperature Sensor & Thermistor

Main board temperature sensor error

The temperature sensor located on the main control board itself has failed, which is a safety feature to prevent the electronics from overheating.

This error usually indicates that the entire main control board needs to be replaced.

Diagnose
F1
Oven / Microwave
NTC Temperature Sensor & Thermistor

Oven temperature sensor (NTC) failure

The oven's main temperature sensor is either shorted or has an open circuit, preventing accurate temperature control.

The NTC sensor needs to be tested with a multimeter for the correct resistance at room temperature. If out of spec, it must be replaced.

Diagnose
F2
Oven / Microwave
Electronic Control Board (PCB) & Bus Communications

Alaska F2: Operational cycle fault detected during Oven / Microwave program execution.

The oven has detected a temperature that is dangerously high. This could be due to a stuck relay on the control board or a faulty cooling fan.

Disconnect power immediately. Check that the cooling fan is operational. The issue is likely a faulty power/relay board that needs professional replacement.

Diagnose
F3
Oven / Microwave
Electronic Control Board (PCB) & Bus Communications

Alaska F3: Operational cycle fault detected during Oven / Microwave program execution.

An internal error or memory corruption has occurred on the main electronic control board (PCB).

Try disconnecting the oven from the power supply for 10-15 minutes to perform a hard reset. If the error returns, the control board will likely need to be replaced.

Diagnose
F4
Oven / Microwave
Drive Motor, Inverter & Tachometer Sensor

Door lock mechanism error

The motorized door lock, used for pyrolytic cleaning cycles, has failed to lock or unlock correctly.

Check for any obstruction preventing the lock from moving. The lock motor or its switches may have failed and will require replacement.

Diagnose
F5
Dishwasher
Water Level Pressure Switch & Air Dome

Alaska F5: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.

The dishwasher has detected that the water level is too low after the initial fill. This is often caused by low water pressure from the mains supply.

Check that your home's water pressure is adequate. Ensure the water inlet tap is fully open. Clean the inlet hose filter.

Diagnose
F6
Dishwasher
NTC Temperature Sensor & Thermistor

Heating Sensor (NTC) Error

The dishwasher has detected a fault with the temperature sensor (NTC), either an open or short circuit.

Test the NTC sensor with a multimeter. Check its wiring. Replace the sensor if it is out of specification.

Diagnose
F8
Oven / Microwave
Electronic Control Board (PCB) & Bus Communications

Circuit board communication error

The main power board and the user interface board are unable to communicate with each other.

Check the wiring harness between the two electronic boards for damage or loose connections. One of the boards may have failed.

Diagnose
H
Hob / Cooktop
General System & Mechanical Integration

Alaska H: Operational cycle fault detected during Hob / Cooktop program execution.

This is not an error but an indicator that the glass surface of a cooking zone is still hot to the touch after use.

Do not touch the cooking zone until the 'H' symbol disappears. This is a normal safety feature.

Diagnose
L
Hob / Cooktop
Door Lock Mechanism & Safety Interlock

Alaska L: Door lock safety interlock fault in Hob / Cooktop; door switch contact fails to close or open.

The child lock feature is engaged, preventing the hob controls from being used.

Refer to the user manual to find the correct key combination to deactivate the child lock. It is usually a long press on a specific key (often a key or lock symbol).

Diagnose
U
Hob / Cooktop
General System & Mechanical Integration

No pan detected / Unsuitable pan

The hob does not detect a pan on the cooking zone, or the pan is not compatible with induction cooking (e.g., glass, aluminum, copper).

Place a suitable, induction-compatible pan on the cooking zone. Use a magnet to test pans; if the magnet sticks firmly to the base, it is induction-compatible.

Diagnose

Alaska — Complete Error Code Catalog

30 Verified Error Codes

Server-side index of all verified manufacturer error codes for technicians and automated crawlers.

Dishwasher4

E7E8F5F6

Washing Machine10

E01E02E03E04E05E06E08E10E21E30

Oven / Microwave6

ER21F1F2F3F4F8

Hob / Cooktop8

E1E3E4E5E6HLU

Refrigerator / Freezer2

E2E9

Need Help? Call a Certified Technician

Our official certified partners service Alaska appliances in your area.

Electroassistance (Switzerland)Appliance Care UK (United Kingdom)
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