Electrolux Dishwasher Error Code i66

i66Electrolux Dishwasher

What this code means

Heating system error 2 — likely causes: burned/stuck neutral relay on circuit board, or damaged wiring harness/connector.

First step from the service manual

Check neutral relay on PCB and wiring harness/connectors; cycle continues, alarm stored in service mode only.

Next steps: diagnose the root cause

1
Verify the error code is active

Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.

2
Get the full diagnostic procedure

Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.

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What’s available for Electrolux dishwasher models

Access Electrolux dishwasher service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.

Related Electrolux dishwasher error codes

01-09Hour(s) delay before start (delay start countdown).ALL LEDs solidAll LEDs illuminated solid indicates a power failure has occurred.b0Turbidity sensor faultCdDisplayed once the program has been entered, START/CANCEL is pressed, and after…CEConfiguration errorCLDisplayed when wash cycle has been completed and SANITIZE was not selected or…CLEANShows completion of cycle; indicator light will switch off when door is opened.DRYINGDrying portion of cycle is active.E1Water inlet time too longE2Drain time too longE3Drain time too longE4Heating time too long without reaching the required temperatureE5Abnormal temperatureErMembrane switch failureEr 01Leak detector activatedEr 02ThermistorEr 03Wash PumpEr 04Drying DamperEr 05Upper FanEr 06Lower FanEr 07Drain ValveEr 08Tactile or touch switchEr 09CommunicationsEr 10Mains RelayEr 11Drain valveEr 12Drain ValveEr 13System FailureEr 14System ErrorF0Pressure switch signal does not stabilize on FULL within dynamic fill time (T.SF1Temperature stop faultF2OverfillingF3Thermistor fault (heater control)F4Water intake faultF5Valve leakageF6Pressure sensor faultF7Pumping out faultF8Blocked filterF9Circulation faultFATurbidity sensor faultFBSpray arm divider faultHdIndicates a water heat delayHOHeat delayhsThe control has sensed a problem with the Hall effect sensor in the wash motor.i0Spray arm blockedi0 (10 blinks)Spray arm blockedi0 (11 blinks)Turbidity sensor faulti0 (12 blinks)Communication errori0 (13 blinks)Tacho errori0 (14 blinks)Fill time errori0 (2 blinks)Drain pump faulti0 (3 blinks)Aqua-Control activatedi0 (5 blinks)Circulation pump triac short circuiti0 (6 blinks)Heater faulti0 (7 blinks)NTC temperature sensor short circuit or open circuit.i0 (8 blinks)EEPROM communication errori0 (9 blinks)Checksum error MCF/CCFi00Low or near-zero supply voltage detected; electronics pause all operations when…i10Water fill time-outi11Water tap closed or low fill detected during dynamic fillingi20Slow or no drain problemi30Intervention of anti-flooding system (the drain pump switches on); the cycle is…i40Analogue Pressure Sensor problemi41No pressure sensor signali42Calibration invalidi43Analog pressure sensor signal too highi44Analog pressure sensor signal too lowi45Pressure sensor calibration invalidi46Pressure sensor calibration invalidi50Motor triac short-circuitedi51AC wash pump motor problemi52Wash pump BLDC motor abnormal high current detectedi53WP BLDC (3-phase) motori54Wash pump BLDC motor will not follow / rotor is lockedi55DCLink low voltagei56DCLink overvoltagei57MCB Vbat voltage plausibility / ADC faulti58WP motor connectori59Wash pump current read ADC faulti5APlatform-dependent: DIVA2i5BWP/DP current problem suspectedi5CDrain pump BLDC motor abnormal high current detectedi5DDrain pump BLDC motor high current (software)i5EDrain pump BLDC motor will not follow / rotor is lockedi5FDP motor connectori60Overheatingi61Heating over temperaturei62Heater relay damagedi63Heating system error 1 (newer platforms: PB100, PB101, PB150 R110+)i64Heater unit resettablei65Heater unit failed (newer platforms)i67Heating system error 3i69Water temperature too highi6AHeater NTC sensor measurement value out of allowed range.i6BTemperature timeouti6CHeat exchanger efficiency lowi70NTC thermistor value out of rangei80Auto door opener malfunctioni81Automatic door opener warningi82Water recycling valve warningi90Software configuration problemi91MCF checksum errori92CCF checksum errori93UIDATA checksum errori94UIDATA version mismatchi95UIDATA checksum type mismatchiA0No spray arm detectioniB0Turbidity sensor problemiB1Turbidity sensor communication lostiB2Turbidity sensor insufficient energy for calibrationiB3Turbidity sensor out-of-range calibration erroriB4Turbidity sensor too noisy during calibrationiC0Communication problemiC1MACS bus communication problemiC2ADSI communication problemiC3Communication between circuit boards failedid0Problems with the washing motoriD1Wash motor tacho critical signaliE0Flow diverter position error (spray arm level)iF0Water replenishment time-out (3 times during the T.SiF1High water levelLD10 blinking (PPD)Drain failureLD10 flashingDischarge pump errorLD10+LD11 (no displays)Programming error when forming machine modelsLD10+LD11 lit permanentlyNTC sensor errorLD11 lit permanentlyHeating errorLD9 blinking (PPD)Water fill failureLD9 flashingWater tap closedLD9:off LD10:off LD11:onHeating errorLD9:off LD10:on LD11:offDischarge pump errorLD9:off LD10:on LD11:onTacho errorLD9:on LD10:off LD11:offWater tap closedLD9:on LD10:off LD11:onNTC Sensor errorLD9:on LD10:on LD11:offAqua-Control errorLD9:on LD10:on LD11:onRecycling pump Triac short-circuitLD9+LD10 flashingAqua-Control activatedLD9+LD11 flashingRecycling pump triac short circuitLD9+LD11 lit permanentlyTacho errorLOThe control has received a signal from the rinse aid dispenser that the rinse…LocChild Lock is engaged; all buttons except AIR DRY are disabled and no new…LSRinse aid emptyNo displays (LD9:off LD10:off LD11:off)Programming error when forming machine modelsOPTION LED's FlashingAll option LEDs flashing indicates a power failure has occurred; the control…PADoor not properly closed.PFPower failurerAThe control has sensed a problem with the reed switch in the rinse aid…SADisplayed when SANITIZE option was selected and dishwasher has reached sanitize…SANITIZEDThe sanitization criteria has been met; indicator light switches off when door…SiOverheatingSSSalt supply depletedSTART LED flashingThe START LED will flash when the door is opened during a cycle.STATUS LED's FlashingThe STATUS LEDs that were lit when the door was opened will flash and stay lit…STATUS LEDs flashingAn error has occurred.tuThe control has sensed a failure in the turbidity (soil) sensor while in the…uFIn the dry mode, the control does not receive proper feedback from the vent…uoThe control does not receive the proper indication that the vent is closed…WASHINGWashing portion of cycle is active.
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