You strike the igniter, you hear the click, you smell the gas — and nothing happens. A gas grill that won’t light is one of the most common problems we see at BBQ Repair Doctor, and the good news is that most of the time the cause is one of seven specific issues you can identify in under ten minutes. Below we walk through each one in the order our Los Angeles, Orange County, and Ventura County technicians check them when they arrive at a customer’s home.
If you’d rather skip the troubleshooting and have a certified BBQ technician handle it the same day, call us at 818-392-8666. Otherwise, read on — and please be careful: gas leaks are dangerous. Stop the moment you smell a strong propane or natural gas odor and call us or your gas utility instead.
1. Your propane tank is empty (or the valve isn’t fully open)
It sounds obvious, but on a residential propane grill this is the single most common cause of “my grill won’t light.” Lift the tank — if it feels noticeably light, it’s empty. If the tank still feels heavy, make sure the tank valve is fully open by turning it counterclockwise until it stops. Some safety valves require you to open them slowly: open it fast, and the over-pressure regulator trips into bypass mode, choking gas flow even though the tank is full.
2. The regulator is in bypass mode (the “low flame” trap)
If your grill ignites but only produces a low, weak flame on every burner — no matter what you set the dials to — your regulator is almost certainly in bypass. To reset it: turn off all the burners, close the tank valve, disconnect the regulator from the tank, wait 30 seconds, reconnect, open the tank valve slowly, then re-light. If the problem keeps coming back, the regulator itself needs replacing; that’s a $40-$120 part plus labor on most residential grills.
3. The igniter is dead
Hold a long match or a butane lighter near a burner port and turn the dial on. If the grill lights with the match but not with the igniter, the ignition system has failed. On battery-powered electronic igniters (most Weber, Char-Broil, and Napoleon models) start by replacing the AA or AAA battery in the housing under the control panel — that fixes the problem about a third of the time. On piezo igniters (the kind that make a clicking sound), the ceramic striker module or the wires running to the burner electrode may need replacing. On high-end Lynx, DCS, and Twin Eagles grills the ignition system is more complex (hot-surface igniters, glow plugs, transformer modules), and a professional diagnosis is faster than trial-and-error replacement.
4. Burner ports are clogged with grease or insects
In Los Angeles especially, spiders love to build webs inside grill burner tubes during the cooler months. A single web inside the venturi can block enough gas to prevent ignition entirely or cause the flame to “flash back” inside the tube — which sounds like a soft whoosh and is a sign the burner needs immediate cleaning. Remove the burner per your owner’s manual and clear each port with a small wire brush or an unfolded paper clip. If the burner is heavily rusted or has holes burned through it, replace it; trying to repair a corroded burner is rarely worth the labor.
5. The gas hose has a kink, a leak, or a failed safety check
Inspect the hose visually for cracks, kinks, or pinched sections. Then, with the tank valve open and burners off, brush a 50/50 mix of dish soap and water along every fitting and connection. Bubbles mean a leak — shut the tank off immediately and replace the affected component. Do not use a grill with a confirmed gas leak; we recommend calling a professional rather than improvising a repair on a gas line.
6. The natural gas shut-off valve is closed
If you have a built-in grill plumbed for natural gas (common on Southern California outdoor kitchens), check the dedicated shut-off valve at the gas hookup behind the grill or in the cabinet below. After any household gas work, plumbers sometimes leave the grill’s branch valve closed. The handle should be parallel to the pipe to be “open,” perpendicular to the pipe to be “closed.”
7. The control valves themselves have failed
On older grills (10+ years), the brass control valves behind each knob can corrode internally and stop opening fully. Symptoms: a knob that turns easily with no resistance, a burner that lights only on “high” and immediately goes out on “low,” or a knob that turns past the off position. Valve replacement requires partially disassembling the control panel and properly torquing the new valve to spec, so this is usually where DIY troubleshooting ends and a service call begins.
When should you call a professional instead of troubleshooting?
Call us if any of the following are true: you smell gas and can’t find the source; you’ve replaced the battery and cleaned the burner and it still won’t light; the grill is a high-end model (Wolf, Lynx, DCS, Alfresco, Twin Eagles, Kalamazoo, TEC Sterling) where parts cost $150+ and you don’t want to guess wrong; the grill is part of a built-in outdoor kitchen and removing components risks damaging the surround; or you simply don’t want to spend a Saturday on it. A diagnostic visit from BBQ Repair Doctor is typically $89, applied to the repair if you proceed.
How long will it take to fix?
Most ignition and burner repairs are completed in a single visit, often in under an hour. If a part needs to be ordered — common for older Wolf or DCS models — we’ll quote you the part cost upfront and schedule a follow-up. We carry the most common replacement parts (igniter modules, burners, regulators, valves, hose assemblies) for major brands directly in our service trucks.
Schedule a same-day BBQ repair visit
BBQ Repair Doctor serves Los Angeles County, Orange County, and Ventura County with factory-trained, certified technicians on all major BBQ brands. Same-day and next-day appointments are usually available. Call 818-392-8666 or fill out our short contact form and we’ll get a technician out to you. We also offer deep cleaning and full restoration if your grill needs more than a quick fix.
