Scholtès Refrigerator / Freezer ER dS

Scholtès error code ER DS indicates: Scholtès Pure Cold Built-in Total NoFrost Refrigerator: Diagnostic code ER dS indicates defrost NTC thermistor open or short circuit; defrost cycle duration strictly time-limited..

The primary root cause for Scholtès code ER DS is: On Scholtès refrigerators (Scholtès Haute Horlogerie Culinaire sensors and micro-electronic platform architecture): Water penetration into sensor epoxy head, wire corrosion, or internal resistor failure (2.7 kΩ at 25°C, 15.0 kΩ at -10°C)..

To resolve error code ER DS: Disconnect power. Measure resistance across sensor wires: nominal 15.0 kΩ at -10°C. If sensor reads infinite Ω or < 1.0 kΩ while frosted, replace NTC sensor capsule. Press and hold Alarm Reset pad for 5 seconds, verify compartment display stops blinking, and allow 12h for complete stabilization.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Scholtès code ER DS persists, the physical component causing On Scholtès refrigerators (Scholtès Haute Horlogerie Culinaire sensors and micro-electronic platform architecture): Water penetration into sensor epoxy head, wire corrosion, or internal resistor failure (2.7 kΩ at 25°C, 15.0 kΩ at -10°C). must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test Compressor Motor Windings (Run/Start) & Defrost Heater across Across 3 compressor pins (Common, Run, Start): R(C-S) + R(C-R) = R(S-R). Winding to earth: >20MΩ (OL).. Expected nominal reading is 15Ω–25Ω (Run C-R), 20Ω–35Ω (Start C-S), 200Ω–400Ω (Defrost Heater). PTC Relay: 10Ω–30Ω at 25°C.. Tolerance: ±10%. Any low insulation resistance to casing (<2MΩ) trips the breaker. Defrost bimetal reads <0.5Ω when sub-zero..

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.