Access our premium database of error codes, common faults, and professional repair solutions for H-Koenig appliances.
H-Koenig E01: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.
The machine has detected that the door is not closed or the door lock mechanism is faulty.
Ensure the door is firmly shut. Check the door lock for damage or obstruction. The door interlock switch may need to be replaced.
Refrigerator compartment sensor fault
The main control board has detected an open or shorted circuit in the refrigerator's temperature sensor.
The air sensor inside the fresh food compartment needs to be tested and likely replaced.
H-Koenig E02: Water inlet / filling timeout in Washing Machine; appliance fails to fill to minimum operational level.
The machine failed to fill with water in the expected time. This could be due to a closed water tap, kinked inlet hose, low water pressure, or a faulty inlet valve.
Check that the water supply tap is fully open. Straighten the inlet hose. Clean the filter in the end of the inlet hose. If the problem persists, check the water inlet valve.
Freezer compartment sensor fault
The main control board has detected an open or shorted circuit in the freezer's temperature sensor.
The air sensor inside the freezer compartment needs to be tested and likely replaced.
H-Koenig E03: Water drainage failure detected in Washing Machine; drain pump cannot evacuate water within safety time limit.
The machine has failed to drain the water. The drain pump filter is likely blocked, the drain pump is faulty, or the drain hose is blocked or kinked.
Switch off the appliance. Check and clean the drain pump filter, usually located behind a small flap at the bottom front. Ensure the drain hose is not kinked.
H-Koenig E3: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment temperature deviation.
The sensor attached to the evaporator coil, which monitors the defrost cycle, is faulty.
The faulty defrost sensor will prevent the No Frost system from working correctly, leading to ice buildup. The sensor needs to be replaced.
Overfill or leak detected
The pressure switch may be faulty or the water inlet valve is stuck open.
Turn off the water and power supply immediately. Check the pressure switch and its hose. The inlet valve may need replacing.
H-Koenig E4: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.
The flood protection switch in the base of the dishwasher has been activated by water.
Unplug the appliance and tip it forward to drain the water from the base. Locate and fix the source of the leak before restarting.
Temperature sensor (NTC) fault
The machine cannot read the water temperature correctly due to a faulty NTC sensor or wiring.
Test the NTC sensor with a multimeter. If the reading is incorrect (usually should be around 4-6 kOhms at room temp), replace the sensor. Check wiring.
H-Koenig E06: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to spin at target RPM.
A fault has been detected with the main drive motor. This is often caused by worn motor carbon brushes or a faulty tacho coil on the motor.
Inspect the motor's carbon brushes. If they are shorter than 15mm, they need to be replaced. Check all motor connections.
H-Koenig E21: Water drainage failure detected in Washing Machine; drain pump cannot evacuate water within safety time limit.
The water is draining too slowly. This is a more specific drain fault than E03, indicating a partial blockage or weak pump.
Perform a thorough cleaning of the pump filter, sump hose (connecting drum to pump), and the drain hose. Check the pump impeller for obstructions.
Oven temperature sensor error
The oven's main control board is not receiving a correct reading from the temperature sensor (NTC/probe).
Check the connection of the temperature sensor at the control board. If the connection is good, the sensor likely needs to be replaced.
H-Koenig F2: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water within safety time limit.
The dishwasher cannot drain the waste water due to blocked filters, a kinked drain hose, or a faulty drain pump.
Clean the filters in the bottom of the dishwasher. Check the drain hose for blockages. Inspect the drain pump impeller for debris.
H-Koenig F3: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum operational level.
The water inlet valve is stuck open, causing the dishwasher to fill with water continuously.
Turn off the water supply to the appliance immediately. The water inlet valve needs to be replaced.
H-Koenig F5: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.
The water level sensor has detected that there is not enough water in the machine to run the cycle.
Check water supply pressure. Clean the mesh filter on the inlet hose. Clean the main filter and spray arms inside the dishwasher.
Door lock mechanism error
Fault with the motorized door lock, often occurring during or after a self-clean (pyrolytic) cycle.
Turn off power to the oven for 5 minutes to reset. If the door remains locked after cooling, the lock mechanism may need to be manually released and replaced.
H-Koenig H: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment temperature deviation.
The internal temperature of a compartment is too high. This can be caused by the door being left open, loading a large amount of warm food, or a cooling system failure.
Ensure the door is closed properly and that seals are clean. Wait several hours for the temperature to stabilize. If the alarm persists, it may indicate a system fault.