H-Koenig ICE-04

H-Koenig error code ICE-04 indicates: H.Koenig KB12 / KB14 / KB15 / KB20 Fast Automatic Ice Cube Maker Machine: Diagnostic fault code ICE-04 registered by the microcomputer controller. Evaporator finger temperature sensor NTC open circuit or disconnected.

The primary root cause for H-Koenig code ICE-04 is: On H.Koenig appliances engineered with R600a compressor ice-making module, copper nickel-plated evaporator finger grid, 12V DC water circulation pump, synchronous ice pusher motor, and infrared bin sensors: repeated thermal contraction cycles fractured copper tube sensor sleeve Metrological tolerance verification: evaporator NTC resistance 10 kΩ at 25°C (~32.6 kΩ at 0°C, ~65.8 kΩ at -15°C)..

To resolve error code ICE-04: Disconnect mains power before servicing. Unplug the harness at the main PCB and use a calibrated digital multimeter: unplug sensor from PCB; test resistance curve in crushed ice bath; replace sensor assembly. Inspect contacts for pin oxidation or loose terminals. Replace defective part if out of tolerance, re-energize and clear error: unplug the power cord for 2 minutes, empty water basin completely using drain plug beneath, refill with fresh cold water to Max mark, and hold Power for 5 seconds.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if H-Koenig code ICE-04 persists, the physical component causing On H.Koenig appliances engineered with R600a compressor ice-making module, copper nickel-plated evaporator finger grid, 12V DC water circulation pump, synchronous ice pusher motor, and infrared bin sensors: repeated thermal contraction cycles fractured copper tube sensor sleeve Metrological tolerance verification: evaporator NTC resistance 10 kΩ at 25°C (~32.6 kΩ at 0°C, ~65.8 kΩ at -15°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.