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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

E72

Tumble Dryer

NTC Temperature Sensor & Thermistor

Castor CDE Series / Secca Rapido Condenser Dryer: Condenser / evaporator NTC error E72; heat pump exchanger temperature monitoring signal lost or invalid.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: Dislodged evaporator clip sensor, moisture ingress into thermistor capsule causing short to ground, or open wire harness in bottom chassis.

Access heat pump lower tray and check evaporator clip NTC probe. Measure sensor resistance (~10 kΩ or ~5 kΩ depending on platform). Ensure secure mechanical contact. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E72

Washing Machine

NTC Temperature Sensor & Thermistor

Castor CWF Series / Master Lavatrice Front Load Washer: Drying condenser NTC sensor fault E72 on washer-dryer; condenser temperature feedback signal missing.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Drying condenser NTC thermistor open or shorted (nominal 4.8–6.0 kΩ at 20°C), broken wiring harness to rear condenser, or disconnected plug.

Access rear condenser duct. Unplug NTC and measure resistance with multimeter (expected 4.8–6.0 kΩ at 20°C). Check wiring continuity. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E73

Tumble Dryer

NTC Temperature Sensor & Thermistor

Castor CDE Series / Secca Rapido Condenser Dryer: Compressor discharge NTC sensor fault E73; high temperature safety monitoring for heat pump compressor inactive.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: High-temperature NTC sensor on compressor discharge copper pipe open or shorted, harness connector oxidized by condensate, or sensor cable pinched.

Locate sensor strapped to compressor discharge line. Measure resistance with multimeter (typically ~20 kΩ at 25°C). Inspect wiring harness. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E73

Washing Machine

NTC Temperature Sensor & Thermistor

Castor CWF Series / Master Lavatrice Front Load Washer: Drying air duct NTC sensor fault E73 on washer-dryer; hot air process temperature signal out of range.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Drying air duct NTC sensor open or shorted, thick lint blanket insulating sensor tip, or overheated wiring harness near drying heater box.

Dismantle upper drying heater duct. Clean lint from sensor tip. Measure NTC resistance (4.8–6.0 kΩ at 20°C). Replace if out of range. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E74

Washing Machine

NTC Temperature Sensor & Thermistor

Castor CWF Series / Master Lavatrice Front Load Washer: Wash NTC sensor misplaced or loose in tub pocket E74; temperature reading does not correlate with heater activation.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: NTC sensor slipped backward out of heating element rubber bracket, measuring external air temperature instead of tub wash water.

Push NTC sensor fully into rubber bracket until locking rim clips firmly against heater flange. Verify temperature increases during wash. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E80

Tumble Dryer

General System & Mechanical Integration

Castor CDE Series / Secca Rapido Condenser Dryer: Program cycle selector encoder error E80; cycle knob position not recognized or erratic positions detected.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: Mechanical wear in rotary potentiometer/encoder switch contacts, spilled detergent residue entering front fascia, or fractured solder joints.

Disassemble front fascia panel. Clean rotary selector tracks with isopropyl contact cleaner. Check resistance steps across switch pins while rotating knob. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E80

Washing Machine

Heating Element, Thermostat & Safety Fuse

Castor CWF Series / Master Lavatrice Front Load Washer: Program selector dial general fault E80; program selection signal invalid or unstable.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Rotary encoder wiper contacts oxidized, foreign liquid spilled inside console, or damaged resistor ladder on selector switch board.

Clean rotary switch encoder contacts with isopropyl alcohol. Check binary continuity across encoder pins in all positions. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E82

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Program selector position encoding error E82; binary code position not recognized by control microprocessor.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Selector knob shaft cracked causing misaligned detent position, cracked solder joints on rotary switch, or corrupted selector lookup table.

Inspect rotary knob shaft for mechanical splits. Resolder rotary switch pins on user interface PCB or replace UI module. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E83

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Program selector reading error while cycle in progress E83; position changes unexpectedly during active wash.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Intermittent contact bounce on rotary encoder wipers, mechanical vibration rattling the selector board, or loose ribbon cable.

Check mounting clips securing user interface PCB to front fascia. Secure flat ribbon interconnect cable between UI and main board. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E84

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Recirculation wash pump triac sensing circuit faulty E84; feedback voltage out of range.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Recirculation pump motor winding open circuit (nominal 180–240 Ω), damaged sensing diode on PCB, or disconnected recirculation harness.

Measure resistance across recirculation pump terminals (expected 180–240 Ω). Check wiring continuity to main PCB connector. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E85

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Recirculation pump triac damaged or motor blocked E85; pump fails to spray water onto wash load.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Lint or thread jammed inside recirculation pump impeller, triac short-circuited on PCB, or impeller detached from motor rotor.

Dismantle recirculation pump and clear debris from impeller chamber. Verify impeller turns freely and replace pump if seized. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E90

Tumble Dryer

Electronic Control Board (PCB) & Bus Communications

Castor CDE Series / Secca Rapido Condenser Dryer: Electronic communication general fault E90; interface board and power module fail to establish data handshake.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: Corroded edge-connectors on communication ribbon cable, 5V DC / 12V DC auxiliary power rail fluctuation, or corrupted configuration memory.

Inspect wiring harness connecting user interface to main power board. Verify steady 5V DC and 12V DC supply rails with voltmeter. Re-seat connectors. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E90

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Electronic control configuration general malfunction E90; system configuration parameters corrupted.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: EEPROM memory checksum mismatch, unconfigured replacement PCB installed without 16-character hex code, or severe electrical mains surge.

Re-enter authoritative 16-character hexadecimal configuration code printed on the machine rating label via diagnostic mode. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E91

Tumble Dryer

Electronic Control Board (PCB) & Bus Communications

Castor CDE Series / Secca Rapido Condenser Dryer: User interface board communication timeout E91; front panel display flickers or freezes with unresponsive buttons.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: Loose serial communication cable between display PCB and main motherboard, electromagnetic interference, or failed transceiver chip on display module.

Check wiring continuity on serial bus wires between UI and main board (< 1 Ω). Clean gold edge contacts with contact cleaner. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E91

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: UI to main board communication error E91; display board loses data link with main EWM control board.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Loose flat ribbon cable connecting display to motherboard, corroded copper tracks from condensation inside console, or power rail dropout.

Unplug ribbon cable, inspect for green copper corrosion, and clean with contact spray. Reseat cable firmly at both connector ends. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E92

Tumble Dryer

Electronic Control Board (PCB) & Bus Communications

Castor CDE Series / Secca Rapido Condenser Dryer: Firmware protocol mismatch E92; communication software versions between display board and main motherboard are incompatible.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: Replacement board installed with incorrect firmware revision, mismatched PNC spare parts, or corrupted flash memory contents.

Verify matching PNC numbers on appliance data rating plate and spare part order. Reprogram board via service tool or install matched board pair. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E92

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Protocol incongruence between UI and main board E92; incompatible software versions installed.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Mismatched replacement board installed (e.g. EWM2100 UI paired with EWM1000 main board), or flash memory corrupted during firmware flash.

Verify spare part PNC numbers on both boards to confirm electronic chassis compatibility. Replace with matching platform module. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E93

Tumble Dryer

Electronic Control Board (PCB) & Bus Communications

Castor CDE Series / Secca Rapido Condenser Dryer: Configuration checksum error E93; appliance configuration code stored in EEPROM memory is corrupted or unprogrammed.

On Castor (Castor CDE Series / Secca Rapido Condenser Dryer) models: Power blackout during drying cycle causing partial EEPROM write, memory cell degradation, unconfigured universal replacement PCB.

Enter diagnostic service mode. Re-enter 16-digit alphanumeric configuration code printed on appliance serial sticker or service documentation. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E93

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Configuration code mismatch E93; appliance configuration checksum in EEPROM does not match hardware.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Incorrect 16-character hexadecimal code entered during manual programming, or unconfigured factory virgin motherboard installed.

Enter service diagnostic mode. Read 16-character hex code from chassis rating sticker and re-enter each 2-character byte sequentially. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E94

Washing Machine

Electronic Control Board (PCB) & Bus Communications

Castor CWF Series / Master Lavatrice Front Load Washer: Cycle configuration parameter error E94; selected wash programme parameters outside firmware safety bounds.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Corrupted cycle profile memory block in flash ROM, partial configuration byte corruption, or incompatible option button combination.

Perform complete factory reset in service test mode. If cycle profiles remain corrupted, reprogram main PCB using Sidekick tool. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E95

Washing Machine

Heating Element, Thermostat & Safety Fuse

Castor CWF Series / Master Lavatrice Front Load Washer: Microprocessor EEPROM communication fault E95; I2C bus error reading/writing non-volatile memory.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Defective EEPROM IC chip (damaged I2C bus lines SDA/SCL), damaged pull-up resistors on bus lines, or power dip during memory write.

Disconnect power for 15 minutes to allow complete capacitor discharge. If I2C bus failure persists, replace main electronic control PCB. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E97

Washing Machine

General System & Mechanical Integration

Castor CWF Series / Master Lavatrice Front Load Washer: Program selector knob configuration mismatch E97 with loaded firmware program map.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Incorrect selector knob positions defined in configuration byte (e.g. 14-position knob programmed as 16-position knob).

Check configuration byte 15 in service menu and verify it matches exact selector knob type on the physical fascia. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

E98

Washing Machine

Drive Motor, Inverter & Tachometer Sensor

Castor CWF Series / Master Lavatrice Front Load Washer: Incongruence between inverter software version and main motherboard firmware E98.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Inverter board (FCV) replaced with incompatible revision or firmware build not supported by the existing main motherboard EWM software.

Verify matching hardware and software version index on inverter and main motherboard barcode labels. Install matching FCV module. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EA

Hob / Cooktop

NTC Temperature Sensor & Thermistor

Castor CIE Series / Piano Cottura Induzione Cooktop: Induction coil temperature sensor circuit open EA; zone electronics cannot monitor burner ceramic temperature.

On Castor (Castor CIE Series / Piano Cottura Induzione Cooktop) models: NTC sensor spring contact detached from coil center, fractured leads on glass thermistor bead, or disconnected 2-pin molex on board.

Access defective induction coil assembly. Measure sensor resistance with ohmmeter (~100 kΩ at 25°C). Ensure spring presses sensor firmly against glass. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EA0

Washing Machine

General System & Mechanical Integration

Castor CWF Series / Master Lavatrice Front Load Washer: Drum positioning sensor (DSP) general failure EA0; top-loader drum stops away from top access door position.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Reed sensor or optical phototransistor open circuit, magnet fallen off outer drum pulley, or cut wire in top-loader harness.

Check drum pulley on side of tub: confirm positioning magnet is present in rim pocket. Test Reed switch continuity with magnet (< 1 Ω). Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EA1

Washing Machine

General System & Mechanical Integration

Castor CWF Series / Master Lavatrice Front Load Washer: DSP missing signal pulses EA1 while drum is rotating; top-loader electronics cannot determine position.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Excessive gap between DSP sensor bracket and drum pulley magnet (> 5 mm), loose bracket mounting, or defective Reed switch.

Adjust DSP bracket position to ensure 2 to 3 mm clearance from pulley magnet. Measure voltage pulses at sensor output during manual drum rotation. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EA6

Washing Machine

Heating Element, Thermostat & Safety Fuse

Castor CWF Series / Master Lavatrice Front Load Washer: Drum lid opening obstruction alarm EA6; top-loader drum flaps open inside tub during wash cycle.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Damaged spring latch on drum opening doors, worn flap catch mechanism, or mechanical jam against tub bottom heater element.

Carefully retrieve drum flaps through tub opening without forcing. Inspect door spring mechanism and replace flap latch if worn. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EB0

Washing Machine

General System & Mechanical Integration

Castor CWF Series / Master Lavatrice Front Load Washer: Mains electrical supply voltage instability warning EB0; appliance pauses cycle to protect electronic components.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Fluctuating mains grid voltage, loose neutral wire in home switchboard, high impedance in extension cords, or failing EMC line filter.

Connect washing machine directly to wall socket (never use extension leads). Measure mains voltage with True-RMS multimeter under load. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EF0

Washing Machine

Drainage System & Drain Pump

Castor CWF Series / Master Lavatrice Front Load Washer: Protective intervention warning EF0; safety system activated (anti-leak, excessive foam, or filter obstruction).

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Water collected in bottom drip tray activating AquaControl float, severe detergent overdosing, or extended slow draining.

Inspect base pan for water leaks. Clean lower lint filter. If excessive suds are visible, perform cold rinse cycle without detergent. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

EF1

Washing Machine

Drainage System & Drain Pump

Castor CWF Series / Master Lavatrice Front Load Washer: Drain filter partially clogged warning EF1; draining duration exceeds target calibration time.

On Castor (Castor CWF Series / Master Lavatrice Front Load Washer) models: Lint, coins, hair clips, or socks partially restricting drain pump chamber, or partially blocked household drain standpipe.

Open lower maintenance flap, unscrew circular coin trap filter, and clean under running water. Check that pump impeller spins freely. 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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