Ice maker stops shortly after startup and displays E1 on the control panel; compressor does not run or runs only briefly.

Safety first: Unplug the Clatronic ice maker from the mains before opening any panels. Do not work on the unit while it is connected to power.

• Power reset: Disconnect the ice maker for 10–15 minutes, then plug it back in and check if E1 clears. Sometimes a temporary sensor reading error can be reset.
• Access the sensor: Remove the rear or side service panel (depending on model) to access the evaporator area. The NTC sensor is usually clipped or strapped to the evaporator plate or embedded in a small metal sleeve.
• Inspect wiring: Check the thin two‑wire cable from the NTC sensor to the main control PCB for cuts, pinches, or melted insulation. Reseat the connector on the PCB and at the sensor (if removable).
• Check sensor resistance: With the unit unplugged, disconnect the sensor and measure resistance with a multimeter. Typical NTC sensors read between 5–50 kΩ at room temperature (exact value depends on model). An open circuit (OL) or 0 Ω indicates a failed sensor.
• Replace the NTC sensor: If readings are out of range or intermittent, replace with a compatible Clatronic NTC temperature sensor for your model. Clip or strap it firmly back onto the evaporator surface and route the cable away from moving parts and hot components.
• Evaluate the PCB: If a known‑good sensor still triggers E1, the temperature input circuit on the main control PCB may be defective. Inspect for burnt components or corrosion. Replacement of the main control PCB is usually required and is best done by a qualified technician.