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Castor • Central Diagnostic Dictionary

191 Verified Codes in Database

Castor Error Codes & Diagnostics

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

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

CodeAppliancesFault / DiagnosticsRepair InstructionsAction

AL5

Dishwasher

Water Level Pressure Switch & Air Dome

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water fill failure AL5 (legacy EDW1500 alphanumeric); inlet valve open but required water level not reached.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Closed supply tap, blocked inlet filter, defective 230V solenoid valve coil (nominal 3.8–4.4 kΩ), or airlock in water softener matrix.

Verify tap water pressure. Clean mesh filter in inlet fitting. Measure solenoid coil resistance (expected 3.8–4.4 kΩ). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

AL6

Dishwasher

Heating Element, Thermostat & Safety Fuse

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water heating failure AL6 (legacy EDW1500 alphanumeric); wash temperature fails to rise.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Open heating element (nominal 25–28 Ω), tripped Klixon safety thermostat on heater casing, or open heating relay contact on PCB.

Measure resistance across heating element terminals (25–28 Ω). Check continuity of safety Klixon (< 1 Ω). Resolder relay contacts on PCB. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

C1

Dishwasher

Water Level Pressure Switch & Air Dome

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water inlet timeout alarm C1 (legacy DIVA alphanumeric); filling duration exceeds maximum safety limit.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Closed water tap, kinked inlet hose, clogged valve filter screen, defective 230V solenoid valve coil (3.8–4.4 kΩ), or air trap restriction.

Open household water tap. Unscrew inlet connection and clean mesh strainer under running water. Measure valve resistance (3.8–4.4 kΩ). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

C2

Dishwasher

Drainage System & Drain Pump

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water drainage timeout alarm C2 (legacy DIVA alphanumeric); tub fails to drain water before next cycle step.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Drain filter clogged by food residue, pump impeller jammed with broken glass, kinked drain hose, or drain pump motor open (160–220 Ω).

Remove sump filter assembly and clean thoroughly. Check that pump impeller rotates freely. Measure pump resistance (160–220 Ω). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

C3

Dishwasher

Drainage System & Drain Pump

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: AquaControl flood protection active C3 (legacy DIVA alphanumeric); base float switch raised, continuous drain.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Internal water leakage into bottom tray, loose hose clamp on sump or circulation pump, split tub bellow, or leaking dispenser gasket.

Unplug dishwasher and shut water tap. Mop up all water from bottom drip tray. Inspect hoses under pressure to locate and repair leak. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

C9

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Motor speed control alarm C9 (legacy alphanumeric); motor fails to rotate or tachometer signal is missing.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Worn carbon brushes (< 12 mm length), motor thermal protector tripped, detached tachometer magnet, or burnt motor drive triac.

Check carbon brush length (replace if < 12 mm). Measure tachometer coil (130–220 Ω) and reset C9 by turning selector from off to 95°C cottons while holding Start and Option. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

CF

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Configuration checksum error in EEPROM CF (legacy alphanumeric); board parameters invalid.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Microprocessor detected corrupted configuration table in non-volatile memory or new unprogrammed replacement board installed.

Reprogram 16-character hexadecimal configuration code in service mode. If memory fails to write and retain code, replace main control board. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E0

Hob / Cooktop

Electronic Control Board (PCB) & Bus Communications

Castor CIE Series / Piano Cottura Induzione Cooktop: Electronic sub-bus communication error E0; communication between left and right induction generator modules fails.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Loose internal LIN-bus ribbon cable, oxidized molex pins, or missing 5V DC auxiliary power rail on secondary induction slave board.

Isolate hob from mains. Open casing and inspect interconnecting LIN ribbon cable. Measure continuity (< 1 Ω) and verify 5V DC on connector pin 1. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E01

Refrigerator / Freezer

Refrigeration Compressor, Defrost Heater & PTC Relay

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: Motorized air damper flap malfunction E01; damper flap fails to calibrate position, leading to incorrect fridge temperatures.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Frozen ice locking damper baffle door, stripped gear teeth in 12V DC stepper motor gear train (winding resistance ~350–450 Ω), or optical switch dirty.

Inspect air damper assembly located in duct between freezer and fridge. Defrost ice obstruction. Measure stepper motor windings (~400 Ω). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E1

Hob / Cooktop

General System & Mechanical Integration

Castor CIE Series / Piano Cottura Induzione Cooktop: Touch control surface blocked E1; continuous touch actuation detected for longer than 10 seconds, disabling burners.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Liquid boiling over touch keys, damp cloth placed over glass controls, metal lid resting on sensor area, or optical contamination.

Remove all cookware and foreign objects from touch zone. Clean ceramic glass surface with specialized scraper and microfiber cloth. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E02

Refrigerator / Freezer

Heating Element, Thermostat & Safety Fuse

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: Automatic ice maker harvest error E02; ice mold ejector blades or twist tray mechanism fails to complete harvest cycle.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Deformed ice cube jamming ejector fingers, defective harvest gear motor (~2.2–3.0 kΩ coil resistance), or open ice mold heater element.

Clear jammed ice from mold. Run diagnostic ice maker test cycle. Measure harvest motor coil resistance (~2.5 kΩ) and mold heater resistance (~80–120 Ω). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E2

Hob / Cooktop

NTC Temperature Sensor & Thermistor

Castor CIE Series / Piano Cottura Induzione Cooktop: Induction coil overheating alarm E2; induction zone temperature sensor exceeds allowable safety cutoff limit (> 240°C).

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Empty pan boiled dry at maximum boost power, non-induction pan with thin base concentrating extreme heat, or degraded silicone heat-sink paste on coil NTC.

Switch off cooking zone and allow hob to cool down for 20 minutes. Inspect cookware suitability with a magnet. Verify coil NTC resistance (~100 kΩ at 25°C). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E03

Refrigerator / Freezer

Refrigeration Compressor, Defrost Heater & PTC Relay

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: Defrost condensate drain line frozen E03; water pools in bottom freezer drawer during defrost cycles.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Defrost drain pan heating probe open or missing aluminum heat-sink conductor strip down into drain funnel, causing re-freezing of melted water.

Flush drain funnel with hot water and clean silicone duckbill valve at rear compressor tray. Verify drain heater continuity (~1.2–1.8 kΩ). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E3

Hob / Cooktop

General System & Mechanical Integration

Castor CIE Series / Piano Cottura Induzione Cooktop: Mains over-voltage detected E3; supply line voltage exceeds safe operating ceiling (> 275V AC), tripping safety shutdown.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Accidental 400V 2-phase connection due to lost or disconnected neutral wire in terminal connection block, or grid lightning power surge.

Immediately disconnect hob. Check junction box with multimeter across L1-N and L2-N (must read ~230V AC; if ~400V, fix floating neutral wire). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E3A

Washing Machine

Water Level Pressure Switch & Air Dome

Castor CWF Series / Master Lavatrice Front Load Washer: Heating element relay sensing circuit failure linked to pressure switch E3A on main motherboard.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Safety heater relay coil open on PCB, feedback sensing resistor burnt, or firmware communication error between relay driver and level logic.

Inspect heating element relay on main PCB (check 12V DC coil resistance ~400 Ω). Verify soldering joints on relay terminals. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E04

Refrigerator / Freezer

Refrigeration Compressor, Defrost Heater & PTC Relay

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: High temperature alarm in freezer compartment E04; freezer temperature rises above -9°C for sustained duration.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Refrigerant leak (loss of R600a charge), inefficient compressor valves, door left ajar, or severe frost buildup restricting airflow through evaporator.

Check magnetic door seal alignment. Inspect evaporator frost pattern (even frost coating indicates healthy charge; bare pipe indicates leak). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E4

Hob / Cooktop

General System & Mechanical Integration

Castor CIE Series / Piano Cottura Induzione Cooktop: Mains under-voltage detected E4; electrical supply drops below minimum operating threshold (< 180V AC).

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Heavy power sag during neighborhood grid overload, undersized power supply cables causing high voltage drop under full load, or loose terminal screw.

Verify tight clamping on all terminal block screws. Measure incoming AC line voltage at terminal block under cooking load with true-RMS voltmeter. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E05

Refrigerator / Freezer

Door Lock Mechanism & Safety Interlock

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: Door open sensor switch fault E05; interior LED lighting or open door chime stays on continuously.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Stuck magnetic reed switch inside control frame, dislodged door magnet on inner door profile, or worn push-button microswitch.

Test door switch continuity with door closed (< 1 Ω). Test reed switch by passing a handheld neodymium magnet over the sensor location. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5

Hob / Cooktop

NTC Temperature Sensor & Thermistor

Castor CIE Series / Piano Cottura Induzione Cooktop: Induction power module heatsink over-temperature E5; cooling duct temperature sensor exceeds 95°C.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Inlet cooling fan failed or obstructed by cutlery drawer beneath hob, blocked ventilation slot in kitchen worktop, or dust accumulation on fins.

Check clearance under hob (minimum 5mm front slot, 20mm rear airflow channel). Ensure cooling fan spins freely and blowers clear dust. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5A

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Inverter module heat sink overheating alarm E5A; IGBT thermal sensor exceeds 88°C threshold.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Inverter housing air vents blocked with lint and dust, dried thermal paste between IGBT module and aluminum heat sink, or excessive ambient heat.

Vacuum dust from inverter module aluminum heat sink fins. Reapply thermal grease between power bridge and heat sink if detached. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5C

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Inverter DC bus overvoltage alarm E5C; internal rectified DC voltage exceeds 430V DC safety limit.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Mains electrical grid voltage surge (> 275V AC), regenerative braking energy not absorbed during rapid spin deceleration, or damaged snubber diodes.

Measure mains AC voltage with true-RMS multimeter (should be 220–240V AC). If mains voltage is normal, inspect inverter DC bus electrolytic capacitors. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5D

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Inverter serial communication timeout E5D; main motherboard loses UART data connection with motor inverter.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Broken data wire in serial communication cable loom, loose Molex connector pins, or missing 12V/5V DC logic power supply to inverter micro.

Check continuity of 4-wire serial communication cable between main board and inverter. Verify 12V DC auxiliary supply rail at inverter plug. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5E

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Inverter microcontroller internal communication fault E5E; DSP processor self-diagnostic fails on boot.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Internal corruption of DSP firmware memory, crystal oscillator timing failure, or damaged internal logic voltage regulator on inverter board.

Perform complete 10-minute mains power discharge. If E5E persists on restart, replace defective motor inverter board (FCV module). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5F

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Inverter module continuous reset condition E5F; hardware watchdog timer resets inverter processor continuously.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Unstable 3.3V DC logic rail on inverter board, high ripple noise from dried switch-mode capacitors, or corrupted bootloader code.

Check for swollen electrolytic capacitors on inverter board. Verify clean 3.3V DC / 5V DC output with multimeter or replace inverter module. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E5H

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Inverter DC bus undervoltage alarm E5H; internal DC rail voltage drops below 175V DC during load.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Mains voltage sag (< 185V AC), high resistance in house electrical wall outlet, or failing rectifier bridge on inverter board.

Verify wall outlet voltage under load with washing machine running heating cycle. Check power cord plug blades for thermal pitting. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E06

Refrigerator / Freezer

Door Lock Mechanism & Safety Interlock

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: Door dispenser communication error E06; water and ice dispenser touchscreen fails to send dispense commands.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Cable harness pinched or broken inside bottom door hinge bushing from repeated door openings, or oxidized dispenser connector.

Remove lower hinge cover plate. Inspect wire harness running through hinge pin. Check continuity of data and 12V supply lines (< 1 Ω). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E6

Hob / Cooktop

Drive Motor, Inverter & Tachometer Sensor

Castor CIE Series / Piano Cottura Induzione Cooktop: Induction power inverter IGBT short circuit E6; power transistors on generator module damaged, tripping household breaker.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: IGBT semiconductor punch-through breakdown from thermal overload, failed resonant capacitors, or shorted copper induction coil windings.

Remove hob and open casing. Measure Collector-Emitter resistance of all IGBTs with multimeter (expected > 100 kΩ; if 0 Ω, replace module or IGBTs). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E6H

Washing Machine

Heating Element, Thermostat & Safety Fuse

Castor CWF Series / Master Lavatrice Front Load Washer: Heating relay feedback sensing circuit anomaly E6H; motherboard detects relay status mismatch on power-up.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Failing auxiliary sensing contacts on safety heater relay, micro-cracks in PCB copper traces connecting relay to MCU, or defective optocoupler.

Inspect main PCB under magnifying glass for cracked solder joints around safety heater relay. Re-solder terminals or replace control board. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E07

Refrigerator / Freezer

Refrigeration Compressor, Defrost Heater & PTC Relay

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: Condenser cooling fan motor failure E07; machine compartment cooling blower stopped, causing compressor overheating.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Heavy dust matting obstructing condenser fins and fan blades, failing 230V shaded-pole or 12V DC motor, or seized sleeve bearings.

Vacuum compressor compartment thoroughly. Clean condenser coils with a radiator brush. Spin fan blades by hand to verify free movement. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E7

Hob / Cooktop

Drive Motor, Inverter & Tachometer Sensor

Castor CIE Series / Piano Cottura Induzione Cooktop: Hob cooling fan motor fault E7; internal 12V DC cooling fan does not run or tachometer pulse signal is absent.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: Defective brushless fan motor, fan blades seized by stray wire or foreign debris, unseated fan connector, or blown fan driver circuit on PCB.

Inspect fan assembly. Spin blades by hand to verify smooth rotation. Measure 12V DC across fan pins during zone operation. Replace fan if seized. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

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Castor — 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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