Safety first: Unplug the appliance before working at the rear.

Steps to address E7:

Access rear compartment: Remove the lower rear cover to expose the condenser coil, condenser fan, and compressor.
Clean condenser: Use a soft brush and vacuum to remove dust from the condenser fins. Blocked airflow can overheat the system.
Inspect fan: Check if the fan blades are obstructed by debris or bent. Spin the blades by hand; they should move freely.
Check wiring: Ensure the fan motor connector is fully seated and wires are intact.
Test fan motor: Measure resistance across the fan motor leads. An open circuit indicates a failed motor. Replace if defective.
Replace condenser fan: Install a new condenser fan motor assembly compatible with Siemens wine coolers, ensuring correct airflow direction through the condenser.

If E7 persists after fan replacement and cleaning, the main PCB may not be supplying power to the fan and should be checked by a professional.

Display shows E7; condenser fan at the rear may not run, cabinet gets warm, and compressor runs hot.

Possible Causes