How to Maintain Your Weber Genesis Gas Grill

So you have a Weber Genesis Gas Grill and your not sure if you want to keep it or get yourself a new barbecue grill. Well I’m here to tell you that I have worked on hundreds if not thousands of Weber Grills and still think that the older ones were one of the best grills made. Now is that showing a bit of bias, well yeah I have a Genesis on my deck that I have rebuilt a number of times. It actually doubles as my camping barbecue (never could get the hang of the little ones) and believe me it gets a workout when we are in a ball tourney. So I know a little about maintaining a Weber Gas Grill.
Now all Weber’s are pretty easy to maintain but I think the Genesis is the easiest on the market to keep working at its peak performance.

Now before we start this project I need to add a little disclaimer: You are going to be working around a gas source whether propane or natural gas as well as sharp objects and possibly some power tools. If you are not sure whether you can do this please call someone and have them maintain your barbecue for you. I have a lot of customers who prefer that I maintain their grills, so don’t go above your capabilities.

Before We Start Make Sure That You Have Turned Off the Gas Source

What do I need to maintain my Genesis Grill?

So here are the items I take to maintain mine or my customers Weber Genesis Gas Grill.

    1. Corded or cordless grill
    2. #2 Phillips Screw Driver
    3. 4″ round brass bristled brush for drill or a brass bristled bbq brush
    4. Shop vac
    5. Bucket with soapy water
    6. Newspaper or plastic
    7. Gloves(for handling the parts)
    8. Paint scraper or putty knife
    9. Garbage bag

Now I also have my toolbox with me because there is a certain amount of disassembly involved, not much but a little. A phillips screwdriver, a socket set or wrench set and a pair of pliers.

Okay Let’s get Started

Because this job can be a little bit messy you may want to put paper or plastic under the barbecue to catch any of the debris.

These Instructions are for pre 2010 models I will give instructions for the latest Weber Genesis Grills in a different post.
Removing the Control Panel
To start remove the knobs from the control panel they will just pull straight up but if your grill is older they may be pretty tight.

Next remove the control panel this will be different depending on the age of the grill, If your grill has a black porcelain control panel then you will find either two plugs or screws on the right side of the panel that will need to be removed.
If your Weber Genesis Grill has a stainless control panel on the side then use stainless cleaner or vinegar and baking soda to clean the shelf while still on the barbecue.
Place the control panel in the soapy water for cleaning. And don’t forget to clean the knobs.
If you require instruction then email me at but to keep this as short as possible I will assume that you have gotten that far.

Now is where we need the paper or plastic, remove the cooking grills and the flavor bars and put those aside for future cleaning.

Cleaning the Burners

If you have read my barbecue terminology for barbecues then you know what the burners are and look like. If not refer to it now. All Weber Genesis Barbecues utilize three burners, until 2011 they also had a crossover burner between the three main burners. I like to inspect the burners and crossover burner for damage at this stage. The burners are very long lasting but depending on the age of the barbecue the crossover burner may need replacing.

Now to clean the burners you can use a pin and bbq brush or a drill and 4″ round brass bristled brush which attaches to the drill.

Here is where we need another disclaimer: If you are using the drill and 4″ round brush then be very careful when cleaning the burner or other parts. That sucker can rip the skin off your arm or knuckle real quick. Also watch that your clothing is not loose as the drill could tangle in it.

Now simply run the brush up and down the burners and that’s about it, make sure the burner ports are clear and use the pin the open any that were stubborn.

Checking the Igniter Electrode and Switch

  • This is a good time to check the ignition system. If the controls for the barbecue are on the right side shelf then the procedure is basically the same.
  • If you have a grill with the porcelain control panel then the igniter electrode and box are mounted the casting next to the front burner. Check for wear to the box and that the wires are in good shape. Replace if worn. Follow the wires and you will see the push button for the igniter, check that it works smoothly, you should hear a click when depressing the button.
  • On the Weber Genesis Grills with the stainless steel control panel there were two types of electrodes used, originally they used the same type as the older genesis with the collector box mounted on the casting. The later models used an electrode mounted directly to the front burner.
  • These models also introduced a battery powered electronic ignition module to create the spark, the battery needs to be replaced occasionally, I recommend every year. This module was susceptible to water damage which caused the unit to corrode. If there is no spark first replace the battery and look for water damage or leakage from the battery. If damaged replace.

Cleaning the Cook box and Lid

How far you go in cleaning the cook box and lid is your personal preference, I am only going to give a quick maintenance guide. If you really want to get down and dirty and spend the time then you can use whatever chemicals you want, just remember if they are caustic you are best to remove the burners so as not to damage them.

For our purposes simply scrape the cook box with the paint scrapper(I don’t like to use any chemicals). Scrape the inside of the lid to remove the carbon buildup. Vacuum the casting with the shop vac or brush the residue with a small brush into the drip pan. Scrape the flavor bars and clean the grills with a brush or if you have a vise you can use the drill and brush.

There is a catch tray located on rails under the barbecue, remove and empty the catch tray which pulls from the front of the barbecue. Use the scraper to clean the pan or if you want to clean the pan more thoroughly use soap and water, replace the foil pan in the grease catcher.

Cart and Shelves

Before you reassemble everything and check for gas leaks you may want to just wipe down the cart and doors(if present). Also wipe down the shelves with some vinegar and baking soda which in my opinion is still the best cleaner and much better for the environment than chemicals.

Resassemble and your done. If you made it this far then congratulations, light it up and enjoy.

Note: If you are going to use any chemicals then make sure you are in a very well ventilated area and use lots of water to rinse the parts, there is nothing worse than the taste of chemicals in the food.

Filed under: Barbecue MaintenanceWeber Genesis Barbecue Maintenance

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