Introduction
This manual provides essential instructions for the safe operation, maintenance, and troubleshooting of your Oster Blender Model 273952. Please read this manual thoroughly before using the appliance for the first time and retain it for future reference. Proper use and care will ensure optimal performance and extend the life of your blender.
Important Safety Instructions
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and/or injury to persons, including the following:
- Read all instructions before using the product.
- To protect against electrical shock, do not place cord, plug, or appliance in water or other liquid.
- Close supervision is necessary when any appliance is used by or near children.
- Unplug from outlet when not in use, before putting on or taking off parts, and before cleaning.
- Avoid contact with moving parts.
- Do not operate any appliance with a damaged cord or plug or after the appliance malfunctions, or has been dropped or damaged in any manner.
- The use of attachments not recommended or sold by the manufacturer may cause fire, electric shock, or injury.
- Do not use outdoors.
- Do not let cord hang over edge of table or counter, or touch hot surfaces.
- Keep hands and utensils out of the container while blending to prevent the possibility of severe injury to persons or damage to the blender. A scraper may be used but only when the blender is not running.
- Blades are sharp. Handle carefully.
- Always operate blender with lid in place.
- When blending hot liquids, use caution; sudden steam can cause burns.
Components
Familiarize yourself with the parts of your Oster Blender:

Image: The Oster Blender assembled, showing the motor base, blending jar, lid, and blade assembly. The jar contains various fruits and ice, illustrating its primary function.
- Lid: Seals the blending jar during operation.
- Blending Jar (6 Cups Capacity): Holds ingredients for blending.
- Blade Assembly: Stainless steel blades for efficient blending.
- Sealing Gasket: Ensures a leak-proof seal between the blade assembly and the jar.
- Motor Base: Contains the motor and control panel.
- Control Panel: Features various speed settings and functions.
Setup
Follow these steps to set up your blender for first use:
- Unpack: Carefully remove all components from the packaging.
- Clean: Wash the blending jar, lid, and blade assembly in warm, soapy water. Rinse thoroughly and dry. The motor base should be wiped with a damp cloth. Do not immerse the motor base in water.
- Assemble Blade: Place the sealing gasket onto the blade assembly. Screw the blade assembly onto the bottom of the blending jar until secure.
- Place Jar on Base: Position the assembled blending jar onto the motor base, ensuring it is seated correctly.
- Connect Power: Plug the power cord into a standard electrical outlet.
Operating Instructions
Your Oster Blender features multiple speeds for various blending tasks. Always ensure the lid is securely in place before operating.

Image: The Oster Blender showcasing its key features: the Crush Pro 4® Blade for pulverizing and chopping, and the Duralast™ All Metal Drive system, which is highlighted for its durability and 10-year warranty.
- Add Ingredients: Place ingredients into the blending jar. Do not fill past the maximum fill line.
- Secure Lid: Place the lid firmly on the blending jar.
- Select Speed: Choose the desired speed setting from the control panel. The blender offers 5 speeds, including specific functions like "Easy Clean," "Milkshake," "Smoothie," "Chop," "Puree," and "Extract."
- Start Blending: Press the corresponding button to start blending.
- Pulse Function: For short bursts of power, use the "Pulse" button. Release to stop.
- Stop Blending: To stop the blender, press the "OFF" button or turn the dial to the "OFF" position.
- Remove Jar: Once blending is complete, unplug the blender and carefully remove the blending jar from the motor base.
Recommended Speeds:
- LOW: For light mixing, stirring, and combining ingredients.
- MEDIUM: For general blending, sauces, and light batters.
- HIGH: For heavy blending, pureeing, and crushing ice.
- PULSE: For controlled chopping and quick bursts of power.
- Specific Functions (e.g., Smoothie, Milkshake): Use these pre-programmed settings for optimized results for those specific tasks.
Cleaning and Maintenance
Regular cleaning and maintenance will ensure your blender remains in good working condition.
- Unplug: Always unplug the blender before cleaning.
- Disassemble: Remove the blending jar, lid, and blade assembly.
- Wash Jar and Lid: Wash the blending jar and lid in warm, soapy water or place them on the top rack of a dishwasher.
- Wash Blade Assembly: Carefully wash the blade assembly. Blades are sharp; handle with caution.
- Clean Motor Base: Wipe the motor base with a damp cloth. Do not immerse the motor base in water or any other liquid.
- Dry: Ensure all parts are completely dry before reassembling or storing.
- Storage: Store the blender in a clean, dry place.
For quick cleaning, add 2 cups of warm water and a drop of dish soap to the blending jar. Secure the lid and run the blender on the "Easy Clean" setting or a low speed for 30 seconds. Rinse thoroughly.
Troubleshooting
Refer to the table below for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blender does not turn on. | Not plugged in; power outlet not working; jar not seated correctly. | Ensure plug is firmly in outlet; check outlet with another appliance; ensure jar is properly locked onto the motor base. |
| Motor stalls or slows down. | Too many ingredients; ingredients are too large or hard; not enough liquid. | Reduce quantity of ingredients; cut ingredients into smaller pieces; add more liquid. |
| Leaking from bottom of jar. | Blade assembly not tightened; gasket missing or improperly placed. | Tighten blade assembly securely; ensure gasket is correctly seated. |
| Loud noise during operation. | Jar not seated correctly; foreign object in jar; worn blade assembly. | Re-seat jar; check for foreign objects; replace blade assembly if worn. |
Specifications
| Brand | Oster |
| Model Number | 273952 |
| Color | White |
| Special Feature | Multiple Speeds |
| Capacity | 6 Cups |
| Included Components | Blending Jar, Lid, Base, Blade |
| Power Source | Corded Electric |
| Number of Speeds | 5 |
| Blade Material | Stainless Steel |
| Product Dimensions | 15.9 x 13.25 x 7.1 inches |
| Item Weight | 4.6 pounds |
| UPC | 034264493315 |
Warranty and Support
This Oster Blender Model 273952 comes with a Limited Warranty. Additionally, the Duralast™ All Metal Drive system is backed by a 10-year warranty, ensuring long-lasting durability.
For warranty claims, technical support, or to purchase replacement parts, please visit the official Oster website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty validation.
For more information, you may visit the Oster Store on Amazon.





