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Siemens • Central Diagnostic Dictionary
44 Verified Codes in Database

Siemens Error Codes & Diagnostics

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

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum
CodeAppliancesFault / DiagnosticsRepair InstructionsAction
E5121
Oven / Microwave
Drive Motor, Inverter & Tachometer Sensor

Pyrolytic cleaning aborted / Door fault

There is a fault with the door contact switch or the door locking motor during a pyrolytic cycle.

Allow the oven to cool completely. Power cycle the appliance. If the fault persists during the next attempt, a service technician is required.

Diagnose
F0
Hob / Cooktop
General System & Mechanical Integration

Siemens F0: Operational cycle fault detected during Hob / Cooktop program execution.

The hob has detected a non-specific internal error in its electronics.

Disconnect the hob from the mains power for 30 minutes to reset it. If the error returns upon reconnection, a service engineer is needed.

Diagnose
F2
Hob / Cooktop
General System & Mechanical Integration

Hob has overheated and switched off

The internal electronics of the hob have become too hot due to prolonged use on high power or blocked ventilation slots.

Turn off the hob and allow it to cool down completely for at least 30 minutes. Ensure the ventilation slots underneath are not obstructed.

Diagnose
F4
Hob / Cooktop
General System & Mechanical Integration

Cooking zone has overheated and switched off

The hob has detected an overheated cooking zone and has switched off as a safety measure. Could also be a sensor issue.

Remove the cookware from the affected zone. Let the hob cool down. If the error persists even when cold, there is a fault with the control electronics.

Diagnose
F8
Hob / Cooktop
General System & Mechanical Integration

Cooking zone turned off after long use

The hob has been operating continuously for an extended period, and the automatic safety switch-off has been activated.

This is a normal safety feature. To continue cooking, simply turn the cooking zone on again.

Diagnose
F16
Washing Machine
Door Lock Mechanism & Safety Interlock

Door is not closed properly

The door latch is not correctly engaged in the lock mechanism, or the door lock is faulty.

Open the door and close it again firmly. Check for any clothing caught in the door. If the error continues, the door lock assembly may need replacement.

Diagnose
F21
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Motor fault / Drum not turning

The motor's carbon brushes are worn out, or there is a fault with the motor or the control module.

Requires a technician. The motor's carbon brushes likely need to be replaced. Check motor connections and test motor.

Diagnose
F37
Washing Machine
NTC Temperature Sensor & Thermistor

Temperature sensor (NTC) fault

The temperature sensor that measures the water temperature is faulty, providing incorrect readings.

Requires a technician to test the sensor's resistance and wiring. The sensor will likely need to be replaced.

Diagnose
F43
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Motor cannot turn drum / Drum is blocked

An object is stuck between the drum and the tub, the motor is blocked, or the motor tacho sensor is faulty.

Attempt to turn the drum by hand (with power off). If it's blocked, an object needs to be removed. Otherwise, it's a motor or electronics fault requiring a technician.

Diagnose
Key Symbol
Oven / Microwave
General System & Mechanical Integration

Controls are locked, oven won't respond

The child safety lock is activated.

Press and hold the button with the key symbol for approximately 4 seconds until the symbol disappears from the display.

Diagnose
SAFE
Oven / Microwave
General System & Mechanical Integration

'SAFE' appears on the display after a power outage

The oven has entered a safety mode following a power interruption.

This is a normal state. You must reset the clock to the current time to clear the 'SAFE' message and enable oven functions.

Diagnose
Tap Symbol
Dishwasher
General System & Mechanical Integration

Water supply fault indicator is lit

Indicates an issue with the water supply. Water tap may be off, inlet hose kinked, or inlet filter blocked.

Check that the water tap is fully open. Straighten the inlet hose. Clean the filter at the connection point to the machine.

Diagnose
U400
Hob / Cooktop
General System & Mechanical Integration

Hob incorrectly connected to mains supply

The hob has been wired with incorrect voltage or phasing during installation.

Immediately disconnect the appliance from the power. The connection must be checked and corrected by a qualified electrician.

Diagnose
Flashing Symbol (e.g., '0')
Hob / Cooktop
General System & Mechanical Integration

Cooking zone not working, power level flashing

No pan is on the cooking zone, the pan is not suitable for induction, or the pan is too small for the zone.

Place a suitable, induction-compatible pan in the center of the cooking zone. Ensure the base is flat and covers the zone markings.

Diagnose
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Siemens — Complete Error Code Catalog

44 Verified Error Codes

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

Dishwasher12

E04E06E09E11E14E15E19E22E24E25E27Tap Symbol

Washing Machine12

E17E18E20E23E29E32E61E67F16F21F37F43

Oven / Microwave7

E01E011E106E0532E5121Key SymbolSAFE

Hob / Cooktop8

dEE9F0F2F4F8U400Flashing Symbol (e.g., '0')

Refrigerator / Freezer5

ALDemo ModeE1E2E4

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