Knobs and bezels
The knob is what you turn. It slides onto the flat or D-shaped stem of the gas valve behind the control panel. The bezel is the ring or plate behind the knob that shows the heat settings and sometimes holds an LED for illuminated knobs. Some bezels also serve as the heat shield that keeps the knob from getting too hot.
Knobs come in zinc, stainless, chrome-plated plastic and plain plastic. Plastic and plated knobs are the most likely to crack, melt or lose their finish.
Common problems
Most common first.
Melted or warped knobs
Usually from heat rolling out the front of the grill with the hood closed, or from a grease fire.
Learn moreKnob spins without turning the valve
The insert inside the knob that grips the valve stem has stripped or cracked.
Faded or peeling finish
Sun and heat break down plating and printed markings. Common on grills in full LA sun.
Cracked or missing bezel
Heat, impact or corrosion. Missing bezels often mean the settings are just guesses.
Knob is very stiff
Often the valve itself, not the knob. Stiff valves need attention.
Learn moreKnob lights out
On illuminated knobs, the LED, wiring or power supply has failed.
Learn moreWhat you can safely do
- Make sure all burners are off and the grill is cool.
- Pull a damaged knob straight off its stem. Most just pull off; some have a set screw or clip.
- Look at the valve stem. It should be straight, clean and not wobble.
- Find your model number before ordering, since knobs that look alike often fit differently.
- Push the new knob straight on, lined up with the flat of the stem. Don't force it.
- Turn each knob through its full range and confirm the burner responds.
Why knobs melt, and how to stop it
Melted knobs are a symptom. The heat that melts them usually comes from grease burning in the front of the firebox, a hood that doesn't seal and vents heat forward, or a damaged heat shield behind the control panel. Replacing the knob without fixing the cause means it'll melt again. We look at the hood seal, the firebox and the shielding when we see melted knobs, and a deep cleaning often takes care of the root cause.
How we replace knobs and bezels
- 1
Match parts
We match by model number or by the valve stem and bezel style. OEM where available.
- 2
Check the valves
With the knobs off, we check each valve stem for stiffness, wobble or leaks.
- 3
Replace bezels
Bezels are removed and replaced, and any heat shield behind them inspected.
- 4
Install and test
Knobs go on, and each burner is lit and run through its full range.
Parts for older grills
Knobs for older or discontinued grills can be hard to find. Universal knobs fit many valve stems and work fine, though they may not match the original look. On brands like Lynx, Viking, DCS and Fire Magic, OEM knobs are often still available. Our guides on OEM vs. universal parts and discontinued grill parts go into the options.
Knob and bezel questions
Are grill knobs universal?
Some are. Many grills use a standard D-shaped valve stem, and universal knobs fit those. Premium grills often use brand-specific knobs and bezels.
Why did my knobs melt?
Usually heat escaping from the front of the grill, often from grease buildup or a hood that doesn't seal. The cause should be fixed along with the knobs.
My knob spins freely. Is the valve broken?
Usually it's the knob insert that has stripped. Pull the knob off and turn the stem gently by hand. If the stem turns normally, a new knob fixes it.
Can you replace just one knob?
Yes, though if the rest are faded, a new one will stand out. Many people replace the set.
How much does knob replacement cost?
It depends on the brand and number of knobs. Send a photo of your control panel and model tag and we'll quote it.
Related guides
BBQ Grill Repair
On-site repair for gas grills: ignition, burners, valves, regulators, gas leaks and the hardware that wears out, with common parts carried on the truck.
Care & how-toFinding Your Grill's Model and Serial Number
Where grill makers hide the rating plate, how to read it when it's faded, and what to do if it's gone. Saves time and wrong parts on any repair.
Buying adviceOEM vs. Universal Grill Parts
Which grill parts are fine to buy universal, which should always be original, and how to measure so a replacement actually fits.
Care & how-toFinding Parts for Discontinued Grills
A step-by-step approach to tracking down parts for older and discontinued grills, and how to know when a grill can't reasonably be kept running.
Knobs cracked or melted?
Call or text us, or send a photo of your control panel. We'll match the parts and check the valves while we're at it.