Access our premium database of error codes, common faults, and professional repair solutions for Airlux appliances.
Outdoor tube sensor open or short circuit
The defrost heater has failed, meaning the appliance cannot melt the ice off the evaporator coils.
Inspect or replace outdoor coil (tube) temperature sensor.
Exhaust sensor open or short circuit
The door locking mechanism is faulty, jammed, or has an electrical issue.
Inspect or replace compressor exhaust temperature sensor.
Over load limit / drop frequency
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Check unit for overload conditions or dirty coils.
Over current limit / drop frequency
A heating element has failed or there is a fault in its wiring circuit.
1. Isolate mains 230V power. 2. Unplug heating element terminals. 3. Measure heating element resistance with multimeter (nominal: 20Ω–32Ω). 4. Check safety thermostat / thermal fuse for continuity (0Ω cold; OL = open/blown). 5. Inspect chassis earth insulation (>2MΩ). 6. Reset: Power cycle reset: Disconnect appliance from 230V mains for 3 minutes. Press and hold Start/Power for 10 seconds while unplugged, then reconnect power.
High exhaust temperature limit / drop frequency
Debris or foreign object blocking drain pump impeller, open circuit on synchronous pump motor winding, pinched outlet hose, or control PCB triac failure.
Check compressor exhaust conditions and refrigerant level.
Over tube temperature drop frequency
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Coil temperature too high, system reducing frequency.
Airlux FC: Operational cycle fault detected during Air Conditioner / Heat Pump program execution.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Power cycle reset: Disconnect appliance from 230V mains for 3 minutes. Press and hold Start/Power for 10 seconds while unplugged, then reconnect power.
Compressor overload sensor malfunction
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Check compressor overload protector and sensor connections.
Anti-freezing limit / drop frequency
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Indoor coil getting too cold, system reducing frequency to prevent freeze.
An 'H' is displayed for a cooking zone, even when off
This is the residual heat indicator, warning that the cooking zone is still hot to the touch.
This is a normal safety feature, not an error. Wait for the zone to cool down, and the 'H' will disappear automatically.
Heating anti-high temperature drop frequency
Defective Immersion / Air Heating Element & Klixon Thermostat, open/short circuit in the wiring harness, or faulty connector on the heating element, thermostat & safety fuse.
Unit is dropping frequency to prevent over-temperature in heating mode.
Airlux H1: Operational cycle fault detected during Air Conditioner / Heat Pump program execution.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Normal operation. System is in defrost mode. Wait for it to finish.
Static clearing dust protection
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
1. Disconnect 230V mains power for 3 minutes. 2. Inspect wire harness and edge connectors on control board for loose pins or oxidation. 3. Inspect mechanical linkages and sensors associated with subsystem. 4. Reset: Power cycle reset: Disconnect appliance from 230V mains for 3 minutes. Press and hold Start/Power for 10 seconds while unplugged, then reconnect power.
Compressor over load protection
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Check compressor draw and ensure normal heat dissipation.
System abnormal protection
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
General system error. Restart unit, check all parameters if error returns.
Airlux H5: Motor drive or inverter rotation anomaly in Air Conditioner / Heat Pump; drum/motor fails to spin at target RPM.
Defective 3-Phase Motor Windings / Tacho Generator / Carbon Brushes, open/short circuit in the wiring harness, or faulty connector on the drive motor, inverter & tachometer sensor.
Intelligent Power Module error. Check outdoor inverter board.
No feedback of indoor fan motor
Defective 3-Phase Motor Windings / Tacho Generator / Carbon Brushes, open/short circuit in the wiring harness, or faulty connector on the drive motor, inverter & tachometer sensor.
Check indoor fan motor, wiring harness, and main control board.
Compressor loss step protection
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Check compressor functionality and driver board.
Airlux HC: Motor drive or inverter rotation anomaly in Air Conditioner / Heat Pump; drum/motor fails to spin at target RPM.
Defective 3-Phase Motor Windings / Tacho Generator / Carbon Brushes, open/short circuit in the wiring harness, or faulty connector on the drive motor, inverter & tachometer sensor.
Power Factor Correction error. Check inverter driver board.
Compressor demagnetization protection
Defective 3-Phase Motor Windings / Tacho Generator / Carbon Brushes, open/short circuit in the wiring harness, or faulty connector on the drive motor, inverter & tachometer sensor.
Check compressor internal condition or replace inverter board.
Airlux I10: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum operational level.
No water is entering the appliance. This can be due to a closed tap, kinked hose, or blocked inlet valve filter.
Verify the water supply tap is fully open. Straighten any kinks in the inlet hose. Unscrew the hose and clean the small mesh filter inside the connection.
Airlux I20: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water within safety time limit.
The appliance has failed to drain the water within the set time. The filters, pump, or hose are blocked.
Pause the cycle and check the main filter and microfilter inside the tub. Inspect the drain hose for kinks. Check the drain pump for foreign objects.
Anti-flood device has been activated
A water leak has been detected in the base of the machine, triggering the safety float switch.
Disconnect from power. Locate and repair the source of the leak (e.g., split hose, bad seal). Dry the base of the machine to reset the float switch.
The hob is locked and controls do not respond
The child safety lock is activated.
Press and hold the key or lock symbol for several seconds until the 'L' disappears. The exact procedure may vary, so consult the user manual.
Outdoor DC fan motor malfunction
Defective 3-Phase Motor Windings / Tacho Generator / Carbon Brushes, open/short circuit in the wiring harness, or faulty connector on the drive motor, inverter & tachometer sensor.
Check outdoor fan motor and rotation.
Airlux LC: Operational cycle fault detected during Air Conditioner / Heat Pump program execution.
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Compressor failed to start. Check capacitors, wiring, and compressor windings.
Compressor loss of phase protection
Defective 3-Phase Motor Windings / Tacho Generator / Carbon Brushes, open/short circuit in the wiring harness, or faulty connector on the drive motor, inverter & tachometer sensor.
Check compressor phase connections and inverter output.
Compressor locked rotary protection
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Compressor may be seized mechanically.
Over compressor phase current protection
Component fatigue, sensor feedback out of tolerance, wiring harness connector discontinuity, or electronic control board glitch.
Check compressor winding resistance and power supply.
Communication failure between main board and driver board
Defective PCB Power Supply Rails & DC Bus Filter Capacitors, open/short circuit in the wiring harness, or faulty connector on the electronic control board (pcb) & bus communications.
Check internal wiring between PCBs in outdoor unit.