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AEG • Central Diagnostic Dictionary

191 Verified Codes in Database

AEG Error Codes & Diagnostics

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

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum

CodeAppliancesFault / DiagnosticsRepair InstructionsAction

i5B

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter DC bus overvoltage alarm i5B; rectified bus voltage exceeds 430V DC.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Mains electrical grid voltage surge, rapid deceleration of heavy wash arm water momentum, or defective DC bus capacitor bank.

Measure incoming AC line voltage (nominal 230V AC ± 10%). Disconnect power for 10 minutes to discharge capacitors, then retest. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i5C

Dishwasher

Heating Element, Thermostat & Safety Fuse

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter DC bus undervoltage alarm i5C; rectified bus voltage drops below 175V DC under load.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Sag in mains AC voltage during heater activation, high contact resistance on power cord plug, or failing input bridge rectifier.

Measure wall outlet voltage under load while dishwasher heater and motor run simultaneously. Inspect power plug blades for burns. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i5D

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter communication line timeout i5D; main motherboard loses UART link with inverter.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Loose 4-wire serial communication cable between main board and motor inverter, cut wire, or missing logic power supply to inverter.

Check continuity of 4-wire serial interconnect harness. Verify 12V DC auxiliary logic power supply arriving at inverter board. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i5E

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter microcontroller hardware defect i5E; DSP chip fails power-on self-test.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Internal DSP memory corruption, failed timing crystal oscillator, or damaged 3.3V voltage regulator on inverter module.

Perform complete 10-minute mains power discharge. If i5E returns upon power-up, replace circulation pump inverter electronic module. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i5F

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter continuous reset condition i5F; watchdog timer resets processor repeatedly.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: High DC ripple on 3.3V logic rail caused by failing electrolytic capacitors, power brownout, or corrupted motor parameters.

Inspect inverter PCB for bulging capacitors. Verify clean DC voltages with oscilloscope or replace circulation inverter module. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i10

Dishwasher

Water Inlet Valve, Aquastop & Flowmeter

AEG Favorit / ProClean / ComfortLift Series: Water fill timeout error i10; appliance fails to reach operational water fill level within 180 seconds.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Closed water tap, kinked supply hose, clogged inlet filter, defective AquaStop solenoid valve (nominal 3.8–4.4 kΩ), or blocked pressure sensor hose.

Check water tap pressure. Clean mesh filter in AquaStop coupling. Measure solenoid valve coil resistance with multimeter (3.8–4.4 kΩ). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i11

Dishwasher

Water Inlet Valve, Aquastop & Flowmeter

AEG Favorit / ProClean / ComfortLift Series: Water fill timeout during active wash phase i11; flowmeter detects inadequate water intake volume.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Low dynamic water pressure (< 0.8 bar), water softener resin matrix restricting flow, or failing flowmeter impeller sensor.

Verify dynamic water flow rate into bucket (> 5 L/min). Inspect flowmeter reed switch wiring and verify pulse signal on oscilloscope/multimeter. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i20

Dishwasher

Drainage System & Drain Pump

AEG Favorit / ProClean / ComfortLift Series: Water drain timeout error i20; wash water remains in sump after 90 seconds of drain pump activation.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Clogged fine mesh filter in tub sump, lemon seeds or broken glass jammed in drain impeller, kinked waste hose, or drain pump coil open (160–220 Ω).

Remove sump filter cylinders and clean under hot water. Check drain pump impeller through sump cavity. Measure pump motor resistance (160–220 Ω). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i22

Dishwasher

Drainage System & Drain Pump

AEG Favorit / ProClean / ComfortLift Series: Siphon pressure sensor alarm i22; analog sensor detects back-pressure after drain cycle completes.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Kitchen sink siphon spigot not drilled out on new installation, grease blockage in drain hose non-return flap, or restricted wall pipe.

Inspect connection spigot under kitchen sink (ensure plastic membrane was drilled out). Clean rubber non-return flap in sump outlet. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i23

Dishwasher

Drainage System & Drain Pump

AEG Favorit / ProClean / ComfortLift Series: Drain pump triac failure or feedback sensing mismatch i23 on main electronic motherboard.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Triac destroyed by short-circuited drain pump stator coil, moisture on pump spade terminals, or open sensing resistor on motherboard.

Measure drain pump coil resistance (must be 160–220 Ω; if < 150 Ω replace pump first!). Inspect PCB for burned triac package. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i24

Dishwasher

Drainage System & Drain Pump

AEG Favorit / ProClean / ComfortLift Series: Drain pump circuit feedback incongruence i24; drain pump current draws outside operating window.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Pump running dry with zero hydraulic load (airlock), broken impeller decoupled from shaft, or high-resistance spade terminal connection.

Verify impeller is firmly fixed to motor shaft. Pour 2 liters of water into sump to prime pump cavity. Check spade crimp terminals. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i30

Dishwasher

Drainage System & Drain Pump

AEG Favorit / ProClean / ComfortLift Series: AquaControl flood protection active i30; base drip tray float triggered, drain pump runs continuously.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Internal water leak onto bottom pan, leaking door lower perimeter gasket, split circulation pump casing, or overflowing dispenser.

Disconnect power and shut water tap. Sponge out water from metal base pan. Inspect sump gasket, hoses, and door bottom seal for moisture. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i40

Dishwasher

General System & Mechanical Integration

AEG Favorit / ProClean / ComfortLift Series: Analog pressure sensor general malfunction i40; uncalibrated or out-of-bounds pressure reading.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Fat deposit clogging pressure sensor trap at bottom of sump, defective transducer diaphragm, or broken 5V DC/GND/Signal wiring harness.

Clean sump pressure cavity with hot water and degreaser syringe. Measure 5V DC supply at sensor plug. Replace analog pressure sensor if faulty. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i41

Dishwasher

Water Level Pressure Switch & Air Dome

AEG Favorit / ProClean / ComfortLift Series: Analog pressure sensor signal out of range i41; frequency or voltage exceeds operating window.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Pressure switch internal piezoelectric element failure, water entered sensor housing, or corroded connector terminal pins.

Inspect pressure switch pins for green corrosion. Measure output signal with multimeter. Replace analog pressure transducer if defective. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i43

Dishwasher

Water Level Pressure Switch & Air Dome

AEG Favorit / ProClean / ComfortLift Series: Dynamic water level fluctuations alarm i43; abnormal pressure oscillations detected during circulation.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Spray arms jammed against tall plates or cutlery, lower spray arm clogged with lemon seeds, or foaming from rinse aid overfill.

Ensure upper and lower spray arms rotate freely by hand. Clean clogged spray arm nozzle orifices with a needle. Check for excessive foam. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i44

Dishwasher

General System & Mechanical Integration

AEG Favorit / ProClean / ComfortLift Series: Pressure sensor zero calibration error at cycle start i44; sensor fails to establish atmospheric zero reference.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Water remaining in tub from previous cancelled cycle, pressure sensor pipe holding hydraulic head, or drifted sensor calibration.

Bail out all standing water from sump with a sponge. Blow gently into pressure sensor rubber hose to equalize pressure. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i50

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation wash pump motor general alarm i50; wash motor fails to circulate water through spray arms.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Circulation pump motor capacitor failed (if single-phase), BLDC inverter stator winding open, jammed motor rotor, or triac/inverter driver fault.

Measure motor winding resistance across phases (balanced 40–90 Ω on BLDC motor). Check run capacitor (~2.5–3.5 µF) if fitted. Ensure free rotation. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i51

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump motor triac short circuit i51 on main motherboard; motor runs uncontrolled at full speed.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Circulation pump motor winding internal short circuit causing power triac breakdown, or water splashing onto main PCB connectors.

Measure circulation pump stator resistance before replacing PCB. Replace damaged motor and replace or repair triac circuit. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i52

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump motor tachometer signal missing i52; motor starts, vibrates, and shuts down after 3 seconds.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Tachometer generator coil open circuit (nominal 200–260 Ω on tachometer equipped models), detached rear magnet, or broken wiring in harness.

Measure tachometer coil resistance across motor tachometer terminals (200–260 Ω). Check magnet integrity on rear rotor shaft. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i53

Dishwasher

Heating Element, Thermostat & Safety Fuse

AEG Favorit / ProClean / ComfortLift Series: Circulation pump triac sensing circuit faulty i53; voltage feedback out of range on motherboard.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Sensing divider resistor drifted on main PCB, cracked solder joints around triac terminals, or optocoupler feedback failure.

Inspect main PCB circuit around circulation pump triac. Resolder cracked joints or replace main electronic control board. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i54

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump motor rotor blocked or mechanically jammed i54; wash pump draws locked rotor current.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Toothpick, olive pit, or broken glass shard jammed between pump impeller and casing, or seized ceramic rotor bushings.

Dismantle circulation pump head casing and clear obstruction from impeller vanes. Verify free manual rotation before reassembly. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i55

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter overcurrent detected i55; phase current exceeds peak threshold during wash.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Stator winding phase-to-phase partial short circuit, failing IGBT inverter bridge transistor, or high water viscosity from detergent gelatin.

Measure winding resistance across all 3 phases (must be strictly balanced within 5%: nominal ~45–65 Ω). Replace pump if unbalanced. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i56

Dishwasher

NTC Temperature Sensor & Thermistor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter thermal cutoff / motor overheating i56; internal thermistor exceeds safety cutoff.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Extended cycle with hot water intake (> 65°C), inadequate motor cooling in enclosed bottom base, or heavy bearing friction.

Allow motor to cool down for 30 minutes. Check inlet water temperature (max 60°C). Inspect motor bearings for friction or seizing. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i57

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump inverter phase current imbalance i57; unequal current distribution across stator coils.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: High-resistance connection on one motor phase pin, partial insulation breakdown between windings, or defective inverter driver channel.

Disconnect motor plug and inspect pins for discoloration. Measure DC resistance of all 3 phase pairs with high-precision multimeter. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i58

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

AEG Favorit / ProClean / ComfortLift Series: Circulation pump motor phase disconnected or stator open circuit i58; inverter senses missing phase current.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Cut wire in three-phase motor cable harness, terminal pin backed out of plastic housing, or open stator winding inside motor.

Test electrical continuity of each phase lead from inverter board to motor terminals (< 0.5 Ω). Replace motor if winding is open (infinite Ω). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i59

Dishwasher

Water Level Pressure Switch & Air Dome

AEG Favorit / ProClean / ComfortLift Series: Circulation pump motor speed runaway or tachometer mismatch i59; rotor speed exceeds command target.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Cavitation in pump chamber caused by zero water intake or excessive foam, loose tachometer magnet, or inverter PWM control breakdown.

Check tub water level (must submerge sump filter base). Check for excessive foam from detergent. Verify tachometer magnet mounting. Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i60

Dishwasher

NTC Temperature Sensor & Thermistor

AEG Favorit / ProClean / ComfortLift Series: Water heating general malfunction i60; wash water fails to heat to target temperature within cycle window.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Flow-through heating element open circuit (nominal 25–28 Ω, ~2000W), tripped Klixon safety thermostat, heating relay contact burnt on PCB, or NTC failure.

Measure resistance across heater element terminals with multimeter (nominal 25–28 Ω). Check continuity of inline thermal fuses (< 1 Ω). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i61

Dishwasher

NTC Temperature Sensor & Thermistor

AEG Favorit / ProClean / ComfortLift Series: Heating timeout or insufficient heating rate i61; water heating speed is less than 0.25°C per minute.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Thick limescale encrustation inside heating tube, low mains voltage (< 200V AC), or defective wash tub NTC sensor with upward resistance drift.

Descale dishwasher using professional citric descaler. Test wash water temperature with probe. Measure NTC resistance (4.8–6.0 kΩ at 20°C). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i63

Dishwasher

NTC Temperature Sensor & Thermistor

AEG Favorit / ProClean / ComfortLift Series: Water heating temperature safety limit exceeded i63; wash water temperature exceeds 78°C.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Heating relay contacts welded closed on main PCB (continuous unswitched heating), wash NTC thermistor short-circuited, or MCU driver failure.

Turn dishwasher off immediately. Check voltage across heater element with cycle paused (must be 0V AC; if 230V AC replace stuck relay / PCB!). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

i64

Dishwasher

Heating Element, Thermostat & Safety Fuse

AEG Favorit / ProClean / ComfortLift Series: Heating element relay contacts welded or continuous heat signal i64 detected during initial cold pre-wash phase.

On AEG (AEG Favorit / ProClean / ComfortLift Series) models: Safety heater relay on main control board stuck closed prior to cycle start, or feedback sensing resistor network shorted to VCC.

Measure contact resistance across relay normally-open contacts with power disconnected (must be open circuit / infinite resistance ∞ Ω). Rotate selector to 12 o'clock (OFF), press and hold Start/Pause and Exit simultaneously for 4 seconds until the diagnostic LED sequence resets error memory.

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AEG — Complete Error Code Catalog

167 Verified Error Codes

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

Dishwasher45

AL5 AL6 C1 C2 C3 i5A i5B i5C i5D i5E i5F i10 i11 i20 i22 i23 i24 i30 i40 i41 i43 i44 i50 i51 i52 i53 i54 i55 i56 i57 i58 i59 i60 i61 i63 i64 i70 i80 i90 iA0 iB0 iC0 iD0 iF0 iF1

Washing Machine57

C9 CF E3A E5A E5C E5D E5E E5F E5H E6H E9C E9E E10 E11 E12 E13 E20 E21 E22 E23 E24 E25 E33 E34 E35 E38 E40 E41 E42 E43 E44 E45 E66 E68 E69 E74 E82 E83 E84 E85 E94 E95 E97 E98 EA0 EA1 EA6 EB0 EF0 EF1 EF2 EF3 EF4 EF5 EH1 EH2 EH3

Tumble Dryer25

E30 E31 E32 E50 E51 E52 E53 E54 E57 E58 E59 E60 E61 E62 E63 E70 E71 E72 E73 E80 E90 E91 E92 E93 EH0

Oven / Microwave12

F101 F102 F103 F104 F105 F106 F107 F108 F109 F110 F111 F112

Hob / Cooktop12

E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA F

Refrigerator / Freezer16

E01 E02 E03 E04 E05 E06 E07 F1 F2 F3 F4 F5 F6 F7 SY EF 5Y EF

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