Schulthess Error Codes & Diagnostics
Complete B2B dictionary of fault codes, troubleshooting steps, and repair manuals for Schulthess home appliances, including Washing Machines, Dishwashers, Ovens, Dryers, and Refrigerators.
47 Verified Codes in Database
Are you a Certified Technician?Stamp unverified codes below to earn +10 Reputation Points.
(Only available for users logged in with a Google account)
(Only available for users logged in with a Google account)
| Code | Fault / Diagnostics | Appliances | Action |
|---|---|---|---|
| AL01 | Leakage detected in base Info: The AquaStop system has been activated by water in the base tray of the machine. | Washing Machine | |
| AL02 | Door is open Info: The program cannot start because the door is not detected as being securely closed and locked. | Washing Machine | |
| AL03 | Drain pump blocked Info: The drain pump is obstructed by debris, preventing the machine from emptying. | Washing Machine | |
| AL04 | Water tap closed Info: The machine is not receiving water from the supply. | Washing Machine | |
| AL05 | Motor error Info: A fault has been detected with the drive motor, often related to the carbon brushes or an overload condition. | Washing Machine | |
| Clean Fluff Filter | Reminder light or message to clean the filter is on Info: The lint filter is full of fluff, which obstructs airflow and reduces drying performance. | Tumble Dryer | |
| Clean Heat Exchanger | Indicator for cleaning the heat exchanger is lit Info: The heat exchanger (condenser unit) at the bottom of the dryer is clogged with lint, affecting efficiency. | Tumble Dryer | |
| Empty Water Tank | Indicator light for the water container is on and the dryer stops Info: The condensate water container is full and needs to be emptied. | Tumble Dryer | |
| E01 | NTC sensor fault (drying) Info: The temperature sensor for the drying circuit is faulty or has a bad connection. | Tumble Dryer | |
| E03 | Condensate pump error Info: The pump that removes condensed water is blocked, the container is full, or the level switch is faulty. | Tumble Dryer | |
| E04 | Restricted airflow Info: The fluff/lint filters or the heat exchanger/condenser are clogged, preventing proper airflow. | Tumble Dryer | |
| F1 | Temperature sensor (NTC) error Info: The NTC temperature sensor is defective, or its wiring is disconnected or damaged. | Washing Machine | |
| F2 | Heating circuit fault Info: The heating element has failed, or there is an issue with the wiring or the heater relay on the main control board. | Washing Machine | |
| F3 | Water level sensor error Info: The pressure switch (level sensor) is faulty, or the pressure hose connected to it is blocked, kinked, or has come off. | Washing Machine | |
| F4 | Drainage fault Info: The drain pump is blocked, the filter is clogged, the drain hose is kinked or blocked, or the pump itself has failed. 5 Elite Techs Verified | Washing Machine | |
| F5 | Motor tacho generator error Info: The motor's speed sensor (tacho) is faulty or has a poor connection, preventing the control board from reading the motor speed. | Washing Machine | |
| F6 | Motor fault Info: General motor error, which could be worn carbon brushes (on older models), a faulty motor winding, or a motor control board issue. | Washing Machine | |
| F7 | Door lock mechanism fault Info: The door lock is not engaging or disengaging correctly, or the control board is not receiving the correct signal from the lock. | Washing Machine | |
| F8 | Communication error with motor electronics Info: There is a communication breakdown between the main control board and the motor control module. | Washing Machine | |
| F9 | Main board software/EEPROM error Info: The main control board has a software corruption or a memory (EEPROM) failure. | Washing Machine | |
| F10 | Water inlet timeout Info: The machine has failed to fill with water in the allotted time. The water tap may be closed, the inlet hose kinked, or the inlet valve filter blocked. | Washing Machine | |
| F11 | Communication error between modules Info: A communication fault has occurred between the main control board and the display/user interface board. | Washing Machine | |
| F13 | Water inlet valve fault Info: The water inlet solenoid valve is defective (stuck open or closed) or its wiring is faulty. | Washing Machine | |
| F23 | Leakage detected / AquaStop activated Info: Water has collected in the base pan of the appliance, tripping the flood protection float switch. | Washing Machine | |
| F24 | Overflow error Info: The pressure switch has detected a water level that is too high, often due to a stuck water inlet valve. | Washing Machine | |
| F34 | Door cannot be locked Info: The door lock mechanism has failed to engage, possibly due to a faulty lock, a misaligned door, or a control board issue. | Washing Machine | |
| F37 | NTC sensor fault (out of range) Info: The temperature sensor is providing an implausible reading (e.g., short circuit or open circuit), indicating a sensor or wiring failure. | Washing Machine | |
| F40 | Mains voltage error Info: The incoming AC power supply voltage is too high or too low for the appliance to operate safely. | Washing Machine | |
| F43 | Motor control unit error Info: The triac or relay that controls the motor on the control board has short-circuited or failed. | Washing Machine | |
| F50 | Motor or electronic control fault Info: This is a general fault indicating a problem with either the motor or the electronics that control it. | Washing Machine |