Weber Grill Igniter Not Working: Diagnostic & Repair

On Weber Summit S-series and Genesis II permanent installations, the four most common causes our techs see at Same Day Appliance Repair are: (1) battery exhausted — Summit uses a 9V battery in the control knob, Genesis II uses an AA battery in each individual burner igniter button, year 1 to 3 typical; (2) ignition module failure year 4 to 6, $30 to $60 module part plus labor; (3) electrode tip cracked or fouled with grease year 5 to 8, $40 to $80 per zone; (4) burner cap or crossover tube misaligned after cleaning, no-parts resolution at $89 diagnostic. We test battery first, then continuity at the igniter module, then visual on electrodes. About 25 to 35 percent of 'won't light' calls on Weber permanent installs resolve at the diagnostic with battery swap or cap re-seat, no parts charged.

Across our Weber service calls in LA: (1) ignition issues 55 to 60 percent — battery, module, electrode, crossover lighting failure; (2) burner heat issues 20 to 25 percent — burner port clog, manifold drift, regulator pressure low; (3) flavor bar / heat distribution 10 to 15 percent — burner cap warping, ceramic radiant degradation on Summit S-series; (4) gas supply / regulator issues 5 to 10 percent. Most Summit and Genesis II built-in failures cluster at year 4 to 7. Our techs at Same Day Appliance Repair carry common Weber Summit igniter modules and AA / 9V batteries on the truck for same-day completion in coastal LA branches.

Honest answer — no. We don't service portable Weber Q, Weber Smokey Joe charcoal, or freestanding Spirit II carts under $800 retail. Reason: replacement is cheaper than service-call labor on those units. A new Weber Q runs $300 to $500; our $89 outdoor diagnostic plus $60 to $120 in parts and labor approaches replacement value. What we do service is permanent Weber installations — Summit S-series and Genesis II built into outdoor kitchen enclosures with natural gas plumbing and stone or stainless cabinetry. Those are appliances designed for 12 to 18 year service life and repair makes sense every time.

Inland West Hollywood, Beverly Hills, Encino, Pasadena installations: ignition module typically reaches replacement curve at year 5 to 8. Coastal Malibu, Newport Coast, Pacific Palisades, Manhattan Beach installations: year 3 to 5 because of salt deposits on electrode insulators and inside the igniter module casing. Batteries on Summit S-series 9V or Genesis II AA: year 1 to 3 regardless of location. Electrode ceramic insulators: year 6 to 10 inland, year 4 to 6 coastal. Our techs see Weber Summit ignition modules fail predictably; we recommend annual inspection on coastal installations and battery swap every other season.

Click without spark on Weber Summit S-series usually means the igniter module is generating the audio pulse but the spark isn't completing the circuit at the electrode. Three causes in order of frequency: (1) electrode insulator cracked, allowing spark to ground out before reaching the burner — $40 to $80 per zone replacement; (2) igniter wire harness corroded at the spade terminal, no spark transmission — $30 to $60 wire harness; (3) electrode tip fouled with grease and salt buildup — we clean at diagnostic, no parts. About 40 percent of 'clicks but no spark' Summit calls our techs run in coastal LA resolve at electrode cleaning during the $89 diagnostic visit.

Weber Summit S-series ignition module $30 to $60 part, $180 to $280 all-in with labor. Weber Genesis II individual burner igniter button $40 to $80 part, $200 to $320 all-in per zone. Electrode replacement $40 to $80 part per zone, $200 to $320 all-in. Wire harness $30 to $60, $180 to $260 all-in. AA battery on Genesis II: $5, swapped at the diagnostic with no separate parts charge. 9V battery on Summit S-series: $5, also no separate charge. Multi-zone work on a 4-burner Summit: $480 to $720 typical for full ignition refresh.

Salt deposits accumulate on the ceramic electrode insulators, on the igniter module spade terminals, and inside the wire harness connectors. Corrosion accelerates 2 to 3 times the inland rate, with electrical resistance climbing year over year until the spark voltage drops below the threshold needed to jump the electrode gap. Symptom: gradual weakening of spark intensity until ignition fails entirely. Our techs at Same Day Appliance Repair see Weber Summit ignition module failure at year 3 to 5 on Malibu PCH and Newport Coast addresses, year 6 to 8 on Encino and West Hollywood inland addresses. We stock Weber Summit modules in West Hollywood, Thousand Oaks, and Irvine branches for coastal same-day work.

Yes, absolutely. The battery is consumer-serviceable on both Weber Summit S-series (9V in the control knob, twist-off cap) and Weber Genesis II (AA in each individual burner igniter button, twist-off cap). $5 part at any hardware store. Most owners don't know the battery exists — it's the single most common DIY-resolvable failure we'd diagnose on a service call. If you can find the battery cap and the unit still won't spark with a fresh battery, that's when you call us. Then we know the issue is downstream of the battery — module, wire harness, or electrode.

Yes. Weber Genesis II permanently built into an outdoor kitchen enclosure with natural gas plumbing falls under our built-in grill service scope. Same as Lynx, Fire Magic, DCS, Twin Eagles, Hestan, Wolf, or Kalamazoo built-ins we service across LA. Diagnostic is $89 outdoor, waived with repair. We carry Genesis II individual burner igniter buttons and AA batteries on the truck for same-day completion. Just to be clear: we don't service the freestanding Genesis II cart version (the wheels-on cart $800 to $1,500 retail) because replacement math on a portable cart is different than on a built-in install.

Often, yes. Weber Summit and Genesis II use a crossover tube (also called the lighting tube) that runs along the back of the burner array and lets adjacent burners light from one ignited zone. When the crossover tube clogs with grease, corrodes through, or sits misaligned after cleaning, the burner-to-burner light spread fails. Customer reports lighting Zone 1 fine, but Zone 2 and Zone 3 won't take the light. Diagnostic: visual inspection plus controlled gas flow test. Repair: crossover tube replacement $40 to $90 part, $180 to $260 all-in. We see this 2 to 4 times a month from Summit owners in LA, usually after annual cleaning when the tube didn't get re-seated correctly.

Different mechanism. Spark and ignition working but flame failing to sustain points to gas supply, regulator pressure, or burner-level issues — not the igniter circuit. Causes our techs see: (1) regulator pressure low or stuck at 'safety' mode after fast-flow trigger (the OPD on propane tanks) — reset the regulator by closing the tank, waiting 60 seconds, and reopening slowly; (2) burner port clog restricting gas flow — $180 to $280 deep cleaning typically resolves; (3) burner pinhole formation on coastal units — $90 to $180 burner replacement. Diagnostic is the same $89 outdoor, but the repair path is different than igniter work. See our sister page on regulator issues for more.

Most Weber ignition diagnostics complete in 30 to 50 minutes. Battery test, electrode visual, igniter module continuity, wire harness inspection, crossover tube check. About 25 to 35 percent of calls resolve at the diagnostic visit with battery swap, electrode cleaning, or cap re-seat — no parts charge, $89 outdoor diagnostic only. Real component repairs (module, electrode, wire harness, crossover tube) typically complete on the same visit if our techs have the part on the truck, or scheduled for second visit within 3 to 7 days for special-order parts. Coastal branches carry common Weber Summit parts for same-day completion.

90 days SDAR labor and parts warranty on every repair we perform. Weber component warranties (module, electrode) where applicable processed through Weber's authorized service network — we coordinate when the failure is within Weber's warranty window. BHGS Registration #A49573 (California Bureau of Household Goods and Services). EPA 608 Universal certified #1346255700410. CSLB C-20 HVAC. BBB Accredited Business. See our licensing page for full credentials.