Introduction
The Weber Genesis II S-435 is a high-performance 4-burner liquid propane grill designed for outdoor cooking. This manual provides essential information for the safe and efficient operation, maintenance, and care of your grill. Featuring a powerful grilling engine and impressive features, this grill is built to enhance your outdoor cooking experience.

Image: The Weber Genesis II S-435 Liquid Propane Grill, stainless steel finish, positioned in an outdoor patio area.
Key Features
The Genesis II S-435 grill incorporates several advanced features for an optimal grilling experience:
- GS4 High Performance Grilling System: This system ensures consistent heat, reliable ignition, and efficient grease management.
- 4 Main Burners: Provides ample cooking power and versatility.
- Side Burner: Ideal for simmering sauces or sautéing vegetables while grilling.
- Sear Station: Creates an intense heat zone for quickly adding sear marks to meat.
- 7mm Stainless Steel Rod Cooking Grates: Designed for superior heat retention and durability.
- Tuck-Away Warming Rack: Keeps food warm while the main course finishes cooking.
- Grease Management System: Helps prevent flare-ups and simplifies cleanup.
- iGrill 3 Compatibility: Integrated port for the iGrill 3 thermometer (sold separately) to monitor food temperature.

Image: A close-up view of the Weber Genesis II S-435 control panel, highlighting the GS4 High Performance Grilling System logo and the ignition button.

Image: A close-up of the integrated port for the iGrill 3 thermometer, located on the side table of the grill.
Setup and Assembly
Your Weber Genesis II S-435 grill requires assembly. For detailed, interactive 3D assembly instructions, download the free BILT app on your mobile device. The app provides step-by-step guidance to ensure correct and efficient setup.
Video: A 3D interactive assembly guide for the Weber Genesis II grill, demonstrating the step-by-step process using the BILT app.
Ensure all components are present and undamaged before beginning assembly. Refer to the parts list provided with your grill. It is recommended to have at least two people for certain assembly steps.
Operating Instructions
Ignition
- Ensure the liquid propane tank is connected and the gas supply is open.
- Open the grill lid.
- Turn the first main burner control knob to the START/HIGH position.
- Press and hold the ignition button until the burner ignites.
- Once the first burner is lit, you can turn on additional main burners to your desired setting.
Using the Side Burner
The side burner is located on the right side table. Lift the cover to access the burner. Turn the side burner control knob to the desired heat setting and ignite using the integrated ignition system.
Using the Sear Station
The Sear Station burner is designed to create an intense heat zone for searing. Turn the Sear Station control knob to the HIGH position to preheat for searing. After searing, move food to a cooler part of the grill to finish cooking.

Image: A close-up view of the control knobs for the main burners, side burner, and sear station on the Weber Genesis II S-435 grill.
Maintenance
Regular maintenance ensures the longevity and performance of your grill.
Cleaning Cooking Grates
After each use, while the grates are still warm, brush them clean with a stainless steel grill brush. For deeper cleaning, remove the grates and wash with warm, soapy water.
Grease Management System
The grease management system consists of a grease tray and a catch pan. Regularly check and clean the grease tray and replace the disposable catch pan when it is full to prevent grease fires and maintain cleanliness.

Image: A hand demonstrating the removal of the grease tray from the bottom cabinet of the Weber Genesis II S-435 grill.
Exterior Care
Clean the stainless steel exterior with a non-abrasive stainless steel cleaner and a soft cloth. Avoid using abrasive cleaners or pads that can scratch the surface. Cover the grill when not in use to protect it from the elements.
Troubleshooting
If you encounter issues with your grill, consider the following common solutions:
- Burner Fails to Ignite: Check the liquid propane tank for sufficient fuel. Ensure the gas line is properly connected and the tank valve is fully open. Clean any debris from the burner ports.
- Low Heat Output: Verify the gas tank is not low. Check for kinks in the gas hose. Ensure all burner tubes are clear of obstructions.
- Flare-ups: Regularly clean the grease management system. Trim excess fat from meats before grilling. Avoid excessive oil or marinade.
For persistent issues, consult the full owner's manual or contact Weber customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Weber |
| Model Name | Genesis II S-435 |
| Model Number | 62006001 |
| Fuel Type | Liquid Propane |
| Main Burner Count | 4 |
| Side Burner Count | 1 |
| Heating Power | 19800 British Thermal Units (Main Burners) |
| Cooking Surface Area | 646 Square Inches |
| Grill Configuration | 4-burner |
| Material Type | Stainless Steel |
| Product Dimensions (D x W x H) | 65"D x 29"W x 47"H |
| Item Weight | 176 Pounds |
| Special Feature | Warming Rack, Sear Station |
| Included Components | iGrill 3 thermometer port, side burner, sear station burner, warming rack, grease management system |
Warranty
The Weber Genesis II S-435 Liquid Propane Grill comes with a 10-year warranty, backed by a 100% Weber guarantee. Please refer to the full warranty documentation included with your product for specific terms and conditions.
Support
For assembly assistance, download the free BILT app for interactive 3D instructions. For product inquiries, troubleshooting, or to purchase accessories, visit the official Weber website or contact Weber customer support.
Online Resources: Visit the Weber Store on Amazon