The Zanussi ZX 55/4 W, ZX 55/4 SI Refrigerator has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your Zanussi might be giving you.
The appliance is not receiving power, which may be due to a power outage or an issue with the electrical socket.
The light inside the appliance is not illuminating, possibly due to a blown fuse or bulb, or a jammed door light switch.
The cooling compartments are not maintaining the desired temperature, which could be due to incorrect settings or ambient conditions.
The freezer door is difficult to open, potentially due to a vacuum seal or obstruction.
The compressor is operating without stopping, indicating a possible issue with temperature settings or a seal leak.
Unusual sounds are coming from the appliance, which may be normal operational noises or indicate a problem.