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OEM VERIFIED BENCH
OFFICIAL FAULT CODEi70
Castor
Castor // OFFICIAL DIAGNOSTIC BENCH

Castor i70

DishwasherNTC Temperature Sensor & Thermistor
Premium built-in dishwasher with open illuminated stainless steel interior and precision spray arms
Dishwasher
Other Brands Sharing Code i70:ElectroluxI70AEGI70ZanussiI70Arthur MartinI70SchulthessI70FaureI70ZoppasI70

Symptom / Description

FAULT

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

TELEMETRY // LIVESIG: FAULT_DETECTED

Root Cause

ROOT CAUSE

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.

CIRCUIT // SUBSYSTEMLOGIC: ROOT_ISOLATED

Repair Instructions

UNLOCKED
1Measure 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.
AI diagnostic workshop engine analyzing appliance circuit schematics and error telemetry in real time
AI WORKSHOP PROTOCOL ENGINE
Direct extraction from OEM factory manuals & wiring schematics

Field Actions

DISPATCH
Need Help? Call a Certified TechnicianWorldwide Castor Parts Finder
Electrical & Safety Protocol

Always disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.

CALIBRATED BENCH PROTOCOL // CAT III 600V

Workshop Verification & Safety Checklist

WORKSHOP VERIFICATION PROTOCOLNTC Temperature Sensor & ThermistorDishwasher
2. Multimeter & Electrical Bench Tests (Ω)
MODE: OHMMETER (Ω)AUTO-RANGE
Precision digital multimeter probes measuring electrical resistance in Ohms on an appliance control board
CALIBRATED METROLOGY RESISTANCE BENCH (CAT III)
Nominal Resistance (Ω)
4.8kΩ–12kΩ (at 20°C–25°C)NOMINAL
0 Ω (SHORT)CALIBRATED BAND∞ OL (OPEN)
▲ NOMINAL OPERATING WINDOW
Target Component:NTC Temperature Sensor Probe (Thermistor)
Test Pins & Connections
PROBE (+)
PROBE (-)
Across sensor pins 1-2 (unplugged harness)
Tolerance & Diagnostic CriteriaNegative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit.
1. Pre-Intervention Electrical Safety Protocols
  • !Electrical Safety Protocol: Disconnect 230V electrical mains power before removing appliance side or rear panels.
  • !Ensure tub water or heating chamber has cooled below 30°C before unclipping thermistor probe.
  • !Use CAT III 600V/1000V insulated test probes when tng at PCB edge connectors.
3. Preliminary Mechanical & Visual Checks
  • Inspect sensor immersion sleeve for calcification, limescale scale, or thermal paste degradation.
  • Check wiring harness for pinch points, chafing against chassis metal, and terminal pin oxidation.
  • Verify probe is firmly seated in its rubber grommet or bracket inside the water/air circuit.
Perform these diagnostic steps before triggering AI Deep Search or replacing boards.Certified Workshop Routine

Frequently Asked Questions: Castor I70

FAQ TREE
What does error code I70 mean on a Castor appliance?

Castor error code I70 indicates: Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Wash tub NTC temperature thermistor open or short circuit i70; temperature measurement circuit inoperative..

What is the root cause of Castor error code I70?

The primary root cause for Castor code I70 is: 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..

How do I fix or resolve Castor error code I70?

To resolve error code I70: 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.

Is it safe to clear Castor error code I70 by resetting power?

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Castor code I70 persists, the physical component causing 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. must be inspected or replaced.

How do I test electrical resistance for Castor code I70 using a multimeter?

Set a digital multimeter to ohms (Ω). Disconnect power and test NTC Temperature Sensor Probe (Thermistor) across Across sensor pins 1-2 (unplugged harness). Expected nominal reading is 4.8kΩ–12kΩ (at 20°C–25°C). Tolerance: Negative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit..

What safety protocol must be followed before servicing Castor code I70?

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.

Community Verification

COMMUNITY

Did this solution resolve the issue?

SEMANTIC KNOWLEDGE GRAPH // CASTOR

Related Castor Dishwasher Error Codes

Diagnostic Link Mesh14 OEM Cross-References

Cross-referenced diagnostic codes for technicians inspecting similar component subsystems.

i80Electronic Control Board (PCB) & Bus Communications
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: EEPROM communication fault or confi...
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i90Electronic Control Board (PCB) & Bus Communications
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iA0Drive Motor, Inverter & Tachometer Sensor
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iB0General System & Mechanical Integration
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iC0Electronic Control Board (PCB) & Bus Communications
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iD0Drive Motor, Inverter & Tachometer Sensor
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iF0Water Inlet Valve, Aquastop & Flowmeter
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water fill timeout due to slow flow...
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iF1Water Level Pressure Switch & Air Dome
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water level overfill warning detect...
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AL5Water Level Pressure Switch & Air Dome
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water fill failure AL5 (legacy EDW1...
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AL6Heating Element, Thermostat & Safety Fuse
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water heating failure AL6 (legacy E...
Inspect Protocol
C1Water Level Pressure Switch & Air Dome
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water inlet timeout alarm C1 (legac...
Inspect Protocol
C2Drainage System & Drain Pump
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water drainage timeout alarm C2 (le...
Inspect Protocol
C3Drainage System & Drain Pump
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: AquaControl flood protection active...
Inspect Protocol
i10Water Level Pressure Switch & Air Dome
Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Water fill timeout error i10; appli...
Inspect Protocol
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