Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your AEG ÖKO SANTO OSK5O88ES refrigerator. Please read these instructions carefully before use and keep them for future reference.
Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and injury.
- Ensure the appliance is properly grounded.
- Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
- Keep ventilation openings clear of obstruction.
- Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.
Setup and Installation
Unpacking
Carefully remove all packaging materials. Inspect the appliance for any damage. Report any damage to your retailer immediately.
Placement
The refrigerator is designed for built-in integration. Ensure adequate ventilation around the appliance. Refer to the installation diagram for precise dimensions and clearances.

Figure 1: Installation dimensions for the AEG OSK5O88ES refrigerator. The appliance measures 873x548x549 mm (HxWxD) and requires an installation niche of 880x560x550 mm (HxWxD). Minimum ventilation areas of 200 cm² are required at the top and bottom.
Electrical Connection
Connect the appliance to a properly grounded electrical outlet. The refrigerator operates on 230-240 Volts with a connection value of 100 Watts. The power cord length is 2.4 meters.
Door Reversal
The door hinge is factory-set to the right but is reversible. Consult a qualified technician or the full service manual for detailed instructions on changing the door swing direction.
Operating Instructions
Temperature Control
The AEG OSK5O88ES features mechanical temperature control. Adjust the thermostat dial inside the refrigerator to set the desired cooling level. Higher numbers typically indicate colder temperatures.
Internal Features
The refrigerator is equipped with LED interior lighting for clear visibility. It includes 3 glass shelves, 1 fruit and vegetable drawer, and an egg tray for 6 eggs.

Figure 2: Interior view of the AEG OSK5O88ES refrigerator, showing the arrangement of glass shelves, door bins, and the fruit/vegetable drawer.

Figure 3: Close-up of the transparent fruit and vegetable drawer, designed to keep produce fresh.
Maintenance and Cleaning
Cleaning the Interior
Before cleaning, always unplug the appliance. Clean the interior regularly with a soft cloth and a mild, non-abrasive detergent. Rinse with clean water and dry thoroughly. Avoid using harsh chemicals or abrasive cleaners.
Cleaning the Exterior
Wipe the exterior surfaces with a soft, damp cloth. For stubborn marks, use a mild detergent. Ensure no water enters the electrical components.
Troubleshooting
Before contacting service, review the following common issues and solutions:
- Appliance does not operate: Check if the power cord is properly plugged in and if there is power to the outlet. Ensure the temperature control is not set to 'off'.
- Temperature is not cold enough: Verify the temperature setting. Avoid frequent door openings. Ensure the door seal is intact and the appliance is not overloaded.
- Unusual noise: The refrigerator operates at a noise level of 36 dB. Some operational sounds (e.g., refrigerant circulation, compressor) are normal. Ensure the appliance is level and not touching walls or other objects.
If the problem persists after checking these points, please contact customer support.
Specifications
| Feature | Specification |
|---|---|
| Model | OSK5O88ES |
| Type | Built-in Refrigerator (without freezer compartment) |
| Total Net Capacity | 142 Liters |
| Dimensions (HxWxD) | 873 x 548 x 549 mm |
| Niche Dimensions (HxWxD) | 880 x 560 x 550 mm |
| Energy Efficiency Class | E |
| Annual Energy Consumption | 93 kWh/annum |
| Airborne Acoustical Noise Emission | 36 dB(A) re 1 pW |
| Noise Emission Class | C |
| Climate Class | SN-N-ST-T |
| Control Type | Mechanical |
| Power Connection | 100 Watts |
| Voltage | 230-240 Volts |
| Cable Length | 2.4 meters |
| Door Hinge | Right, reversible |
| Lighting | LED |
For detailed energy information, please refer to the energy label and the EPREL database:

Figure 4: Energy label for the AEG OSK5O88ES, showing an energy efficiency class of E, annual energy consumption of 93 kWh, and a noise level of 36 dB.
EPREL Database Link: https://eprel.ec.europa.eu/qr/1629773
Warranty and Support
Warranty Information
Your AEG ÖKO SANTO OSK5O88ES refrigerator comes with a manufacturer's warranty. Please refer to the warranty card included with your purchase or visit the official AEG website for specific terms and conditions applicable in your region.
Customer Support
For technical assistance, spare parts, or service requests, please contact AEG customer support. Have your model number (OSK5O88ES) and serial number ready when contacting support.
Contact details can typically be found on the AEG official website or in your purchase documentation.

