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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
i70
Dishwasher
NTC Temperature Sensor & Thermistor

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Wash tub NTC temperature thermistor open or short circuit i70; temperature measurement circuit inoperative.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: NTC sensor internal pellet open or shorted (nominal 4.8–6.0 kΩ at 20°C; ~1.2 kΩ at 60°C), broken wiring harness in door hinge bend, or plug loose.

Measure NTC resistance directly at sensor terminals (4.8–6.0 kΩ at 20°C). Check continuity of 2-wire harness through door hinge flex point. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
i80
Dishwasher
Electronic Control Board (PCB) & Bus Communications

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: EEPROM communication fault or configuration checksum error i80; control board memory read failure.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Damaged EEPROM integrated circuit, unprogrammed replacement motherboard, or electrical surge corrupting stored parameters.

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

Diagnose
i90
Dishwasher
Electronic Control Board (PCB) & Bus Communications

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: User interface display board communication failure i90 with main EDW control motherboard.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Broken data wire in door harness flex zone, loose ribbon connector on display backplate, or missing 5V DC supply rail from main board.

Inspect wiring harness where it bends under door hinge. Test continuity of each wire with multimeter. Verify 5V DC rail at UI plug. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
iA0
Dishwasher
Drive Motor, Inverter & Tachometer Sensor

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Lower spray arm rotation sensor missing pulses iA0; lower wash arm is stalled or rotation blocked.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Tall plates, cutting boards, or cutlery handles protruding through basket blocking spray arm, missing arm magnet, or defective Hall sensor.

Rearrange lower basket loading so dishes do not contact spray arm. Inspect lower spray arm tip to confirm embedded magnet is present. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
iB0
Dishwasher
General System & Mechanical Integration

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Turbidity optical sensor calibration failure iB0; clear water optical baseline out of specification.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Grease film or milk residue coating turbidity sensor optical prism in sump, failed infrared emitter diode, or detached turbidity sensor harness.

Remove sump filters and clean optical prism window with alcohol wipe. Measure 5V DC supply at turbidity plug. Replace sensor if cloudy. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
iC0
Dishwasher
Electronic Control Board (PCB) & Bus Communications

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: User interface logic protocol mismatch iC0; communication packets rejected between UI and motherboard.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Incompatible display board revision fitted, corrupted communication baud-rate settings in EEPROM, or electrical interference on bus lines.

Check PNC spare part compatibility on both electronic boards. Reconfigure appliance configuration code in service mode. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
iD0
Dishwasher
Drive Motor, Inverter & Tachometer Sensor

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Tachometer signal missing from variable speed wash motor iD0; inverter fails to verify motor rotation.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Tachometer pickup coil open circuit (nominal 110–135 Ω on inverter motor), detached sensor magnet, or broken connector lead.

Measure tachometer resistance across motor pins 4 and 5 (nominal 110–135 Ω). Verify wiring continuity back to inverter board. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
iF0
Dishwasher
Water Inlet Valve, Aquastop & Flowmeter

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water fill timeout due to slow flow rate iF0; filling takes more than 4 minutes to satisfy pressure reference.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Partially closed stopcock, clogged AquaStop mesh filter, lime-restricted water softener matrix, or low building water mains pressure.

Open supply valve fully. Unscrew inlet connection and clean strainer with brush. Check that filling flow rate reaches at least 3 L/min. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
iF1
Dishwasher
Water Level Pressure Switch & Air Dome

Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water level overfill warning detected by analog pressure sensor iF1; tub water level exceeds maximum safety mark.

On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: AquaStop solenoid valve leaking water past its seat when unpowered, triac on main PCB shorted, or high detergent foam triggering false level.

Disconnect power: if water continues filling tub, replace defective AquaStop inlet valve. If water stops, inspect filling triac on PCB. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
SY EF
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: System evaporator fan circuit failure SY EF; electronic control module detects no rotation speed feedback from evaporator blower.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Ice accumulation freezing the fan blades, defective 12V DC brushless motor windings, severed connector lead, or blown fan driver IC on main motherboard.

Remove freezer back panel. Spin fan blade to verify free rotation. Measure 12V DC across fan red and black wires, and verify pulsing feedback on yellow wire. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
5Y EF
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

Castor CRB Series / Frigo Ventilato Refrigerator-Freezer: System evaporator fan circuit failure 5Y EF; alternative 7-segment display rendering of SY EF error code on user console.

On Castor (Castor CRB Series / Frigo Ventilato Refrigerator-Freezer) models: Ice accumulation freezing the fan blades, defective 12V DC brushless motor windings, severed connector lead, or blown fan driver IC on main motherboard.

Inspect evaporator fan behind freezer back wall. Remove frost with warm air. Measure 12V DC motor supply and verify tacho feedback signal. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Diagnose
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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

AL5AL6C1C2C3i5Ai5Bi5Ci5Di5Ei5Fi10i11i20i22i23i24i30i40i41i43i44i50i51i52i53i54i55i56i57i58i59i60i61i63i64i70i80i90iA0iB0iC0iD0iF0iF1

Washing Machine57

C9CFE3AE5AE5CE5DE5EE5FE5HE6HE9CE9EE10E11E12E13E20E21E22E23E24E25E33E34E35E38E40E41E42E43E44E45E66E68E69E74E82E83E84E85E94E95E97E98EA0EA1EA6EB0EF0EF1EF2EF3EF4EF5EH1EH2EH3

Tumble Dryer25

E30E31E32E50E51E52E53E54E57E58E59E60E61E62E63E70E71E72E73E80E90E91E92E93EH0

Oven / Microwave12

F101F102F103F104F105F106F107F108F109F110F111F112

Hob / Cooktop12

E0E1E2E3E4E5E6E7E8E9EAF

Refrigerator / Freezer16

E01E02E03E04E05E06E07F1F2F3F4F5F6F7SY EF5Y EF

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