--- title: "Lynx SmartGrill knob lights sweeping: the grill is starting up" description: "What Knob LEDs sweep back and forth means on Lynx SmartGrill knob lights sweeping: the grill is starting ups, what to check before booking, and when it is not a…" url: "https://bbqgrillrepair.center/error-codes/lynx-knob-leds-oscillating/" --- # Lynx SmartGrill knob lights sweeping: the grill is starting up The SmartGrill starts up like a computer. ## What Knob LEDs sweep back and forth actually means. The SmartGrill starts up like a computer. While it boots or loads, the lights around the knobs oscillate so you know it is working, and it answers commands once it is ready. Lynx grill display What to do when Knob LEDs sweep back and forth shows on the grill ### Kind of code Mode, not a failure Nothing on the grill has failed; the controller is showing a state it was put in on purpose. A shutdown cycle keeps the fan running to burn off the last pellets before the grill goes quiet, a keep-warm setting holds the cook box low, a demo mode lights the display without feeding fuel, and a pairing screen waits for a phone to connect. No part is needed; the button sequence in the manual, or simply letting the cycle finish, returns it to normal. ### Usually leads to No repair Wait for the lights to settle; after a power cycle Lynx allows up to a minute. ### Shows up as Grill Error Code on a Pellet Controller or Digital Panel A grill error code shows as letters and numbers on a pellet grill controller, a flashing light on a digital control panel, or an alert in the maker's app paired with the grill. ### Make Lynx A Lynx grill visit opens with the lid raised and every burner lit once, so the tech sees which ports burn blue and which ones sputter. ### Source SmartGrill by Lynx care and use / installation manual (SMART30, SMART36, SMART42 and F models) SmartGrill by Lynx built-in and freestanding heads (SMART30, SMART36, SMART42, with F suffix on the cart versions) speak this line through the grill and send the same text to the app. Lynx Professional and Sedona grills with ordinary knobs have no such messages. ## Before you book, in this order. Each step comes from Lynx's own guidance for Knob LEDs sweep back and forth on its grills. Follow it to the end: the last card says whether this is a visit. 01 Wait for the lights to settle; after a power cycle Lynx allows up to a minute. 02 Listen for SmartGrill is ready before pressing the power button. 03 If the lights keep sweeping for several minutes and the grill never becomes ready, unplug it, plug it back in and book a visit if that does not help. ### Cleared? The code is gone from the controller, the grill climbs to its set heat and holds it through a full cook, the pellets keep dropping and the probe readings stay believable, all without a new part. If the same code comes back within a week, or after the next rain, mention it when you book. ### What not to do Sweeping knob lights are not a warning. A SmartGrill with no knob lights at all is a power problem instead, starting with the plug and the GFCI outlet. ## What you may notice with it. The grill problems Knob LEDs sweep back and forth tends to arrive with. Answer these at the grill before anyone is booked. [All problems](https://bbqgrillrepair.center/problems/) Before you call ### [Grill Error Code on a Pellet Controller or Digital Panel](https://bbqgrillrepair.center/problems/grill-error-code/) [All 7 causes, cheapest first](https://bbqgrillrepair.center/problems/grill-error-code/) It also comes with - [**Grill Lights Not Working: Dark Knob Lights and Hood Lamps**](https://bbqgrillrepair.center/problems/grill-lights-not-working/) Problem ### Grill Error Code on a Pellet Controller or Digital Panel 7 causes, cheapest first No repair indicated ## Nothing to repair. Nothing on the grill has failed; the controller is showing a state it was put in on purpose. A shutdown cycle keeps the fan running to burn off the last pellets before the grill goes quiet, a keep-warm setting holds the cook box low, a demo mode lights the display without feeding fuel, and a pairing screen waits for a phone to connect. No part is needed; the button sequence in the manual, or simply letting the cycle finish, returns it to normal. [How to read what your grill is telling you](https://bbqgrillrepair.center/problems/grill-error-code/) ## Lynx grills. A Lynx grill visit opens with the lid raised and every burner lit once, so the tech sees which ports burn blue and which ones sputter. [Lynx grill repair](https://bbqgrillrepair.center/brands/lynx/) More Lynx codes [Igniter failed to start](https://bbqgrillrepair.center/error-codes/lynx-igniter-failed-to-start/) [Burner N failed to ignite](https://bbqgrillrepair.center/error-codes/lynx-burner-failed-to-ignite/) [Burner N failed to stabilize](https://bbqgrillrepair.center/error-codes/lynx-burner-failed-to-stabilize/) [Burner N cannot reach target temperature](https://bbqgrillrepair.center/error-codes/lynx-cannot-reach-target-temperature/) [Burner N has no flame](https://bbqgrillrepair.center/error-codes/lynx-burner-has-no-flame/) [Burner N turned on unexpectedly](https://bbqgrillrepair.center/error-codes/lynx-burner-turned-on-unexpectedly/) [Burner N temperature not steady](https://bbqgrillrepair.center/error-codes/lynx-temperature-not-steady/) [Error encountered. Please unplug and re-plug SmartGrill power cable.](https://bbqgrillrepair.center/error-codes/lynx-error-encountered/) [Ambient temperature too high](https://bbqgrillrepair.center/error-codes/lynx-ambient-temperature-too-high/) [Burner N knob has malfunctioned](https://bbqgrillrepair.center/error-codes/lynx-burner-knob-has-malfunctioned/) [Burner N gas valve has malfunctioned](https://bbqgrillrepair.center/error-codes/lynx-burner-gas-valve-has-malfunctioned/) [BurnerN gas valve has short circuited](https://bbqgrillrepair.center/error-codes/lynx-gas-valve-short-circuit/) [All 15 Lynx codes](https://bbqgrillrepair.center/error-codes/#codes-lynx) Mode, not a failure on other makes [Alfresco - - - (target temperature)](https://bbqgrillrepair.center/error-codes/alfresco-target-dashes/) [Broil King RES](https://bbqgrillrepair.center/error-codes/broil-king-res/) [DCS Dial light white](https://bbqgrillrepair.center/error-codes/dcs-dial-light-white/) [Fire Magic Standby Mode (display off)](https://bbqgrillrepair.center/error-codes/fire-magic-standby-mode/) [Kalamazoo Flashing white bezel light](https://bbqgrillrepair.center/error-codes/kalamazoo-flashing-white-bezel-light/) [Twin Eagles STAND BY](https://bbqgrillrepair.center/error-codes/twin-eagles-stand-by/) [Coyote Red flame icon](https://bbqgrillrepair.center/error-codes/coyote-red-flame-icon/) [All 23 codes of this kind](https://bbqgrillrepair.center/error-codes/#family-mode) Lynx builds this ### Built-in gas grill A stainless grill head dropped into a masonry or steel island, fed by a tank or the house gas line, with its burners, knobs and lid working in open weather. Lynx builds this ### Freestanding gas grill A gas grill on its own cart with wheels, side shelves and a propane tank below, or a hose to a house gas outlet, rolled into place on the patio. Lynx builds this ### Infrared grill Grills that cook with radiant heat: ceramic or mesh infrared burners, sear stations beside the main burners, and radiant glass or emitter plates over a gas flame. ## In Lynx's own words > Any time the grill is loading or booting, the knob LEDs will oscillate back and forth letting you know the grill is busy. [SmartGrill by Lynx care and use / installation manual (SMART30, SMART36, SMART42 and F models)](https://www.lynxgrills.com/upload/files/Product%20Documents/Care%20and%20Use%20Manuals/Manual_SmartGrill.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. SmartGrill by Lynx built-in and freestanding heads (SMART30, SMART36, SMART42, with F suffix on the cart versions) speak this line through the grill and send the same text to the app. Lynx Professional and Sedona grills with ordinary knobs have no such messages. ## Lynx Knob LEDs sweep back and forth grill repair, where we come out. The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered. [All service areas](https://bbqgrillrepair.center/locations/) [Tampa Bay](https://bbqgrillrepair.center/locations/tampa-bay/) FL · 31 areas - [Hyde Park](https://bbqgrillrepair.center/locations/tampa-bay/hyde-park/) - [Davis Islands](https://bbqgrillrepair.center/locations/tampa-bay/davis-islands/) - [Palma Ceia](https://bbqgrillrepair.center/locations/tampa-bay/palma-ceia/) - [Westchase](https://bbqgrillrepair.center/locations/tampa-bay/westchase/) - [Carrollwood](https://bbqgrillrepair.center/locations/tampa-bay/carrollwood/) - [Belleair](https://bbqgrillrepair.center/locations/tampa-bay/belleair/) - [St. Pete Beach](https://bbqgrillrepair.center/locations/tampa-bay/st-pete-beach/) - [Palm Harbor](https://bbqgrillrepair.center/locations/tampa-bay/palm-harbor/) [Orlando](https://bbqgrillrepair.center/locations/orlando/) FL · 30 areas - [Winter Park](https://bbqgrillrepair.center/locations/orlando/winter-park/) - [Windermere](https://bbqgrillrepair.center/locations/orlando/windermere/) - [Dr. Phillips](https://bbqgrillrepair.center/locations/orlando/dr-phillips/) - [Bay Hill](https://bbqgrillrepair.center/locations/orlando/bay-hill/) - [Lake Nona](https://bbqgrillrepair.center/locations/orlando/lake-nona/) - [Heathrow](https://bbqgrillrepair.center/locations/orlando/heathrow/) - [Celebration](https://bbqgrillrepair.center/locations/orlando/celebration/) [Miami / South Florida](https://bbqgrillrepair.center/locations/south-florida/) FL · 47 areas - [Brickell](https://bbqgrillrepair.center/locations/south-florida/brickell/) - [Coconut Grove](https://bbqgrillrepair.center/locations/south-florida/coconut-grove/) - [Coral Gables](https://bbqgrillrepair.center/locations/south-florida/coral-gables/) - [Pinecrest](https://bbqgrillrepair.center/locations/south-florida/pinecrest/) - [Key Biscayne](https://bbqgrillrepair.center/locations/south-florida/key-biscayne/) - [Aventura](https://bbqgrillrepair.center/locations/south-florida/aventura/) - [Sunny Isles Beach](https://bbqgrillrepair.center/locations/south-florida/sunny-isles-beach/) - [Bal Harbour](https://bbqgrillrepair.center/locations/south-florida/bal-harbour/) - [Miami Beach](https://bbqgrillrepair.center/locations/south-florida/miami-beach/) - [Golden Beach](https://bbqgrillrepair.center/locations/south-florida/golden-beach/) - [Weston](https://bbqgrillrepair.center/locations/south-florida/weston/) - [Boca Raton](https://bbqgrillrepair.center/locations/south-florida/boca-raton/) - [Palm Beach](https://bbqgrillrepair.center/locations/south-florida/palm-beach/) [New York Metro](https://bbqgrillrepair.center/locations/new-york/) NY · 75 areas - [Upper East Side](https://bbqgrillrepair.center/locations/new-york/upper-east-side/) - [Upper West Side](https://bbqgrillrepair.center/locations/new-york/upper-west-side/) - [Tribeca](https://bbqgrillrepair.center/locations/new-york/tribeca/) - [SoHo](https://bbqgrillrepair.center/locations/new-york/soho/) - [Greenwich Village](https://bbqgrillrepair.center/locations/new-york/greenwich-village/) - [Battery Park City](https://bbqgrillrepair.center/locations/new-york/battery-park-city/) - [Brooklyn Heights](https://bbqgrillrepair.center/locations/new-york/brooklyn-heights/) - [Park Slope](https://bbqgrillrepair.center/locations/new-york/park-slope/) - [DUMBO](https://bbqgrillrepair.center/locations/new-york/dumbo/) - [Forest Hills](https://bbqgrillrepair.center/locations/new-york/forest-hills/) - [Great Neck](https://bbqgrillrepair.center/locations/new-york/great-neck/) - [Southampton](https://bbqgrillrepair.center/locations/new-york/southampton/) - [Scarsdale](https://bbqgrillrepair.center/locations/new-york/scarsdale/) [Houston](https://bbqgrillrepair.center/locations/houston/) TX · 36 areas - [River Oaks](https://bbqgrillrepair.center/locations/houston/river-oaks/) - [Memorial](https://bbqgrillrepair.center/locations/houston/memorial/) - [Tanglewood](https://bbqgrillrepair.center/locations/houston/tanglewood/) - [Greater Heights](https://bbqgrillrepair.center/locations/houston/greater-heights/) - [Kingwood](https://bbqgrillrepair.center/locations/houston/kingwood/) - [Bellaire](https://bbqgrillrepair.center/locations/houston/bellaire/) - [Bunker Hill Village](https://bbqgrillrepair.center/locations/houston/bunker-hill-village/) - [Piney Point Village](https://bbqgrillrepair.center/locations/houston/piney-point-village/) - [Hunters Creek Village](https://bbqgrillrepair.center/locations/houston/hunters-creek-village/) - [Sugar Land](https://bbqgrillrepair.center/locations/houston/sugar-land/) - [Cinco Ranch](https://bbqgrillrepair.center/locations/houston/cinco-ranch/) - [The Woodlands](https://bbqgrillrepair.center/locations/houston/the-woodlands/) - [West University](https://bbqgrillrepair.center/locations/houston/west-university/) [Chicago](https://bbqgrillrepair.center/locations/chicagoland/) IL · 50 areas - [Lincoln Park](https://bbqgrillrepair.center/locations/chicagoland/lincoln-park/) - [Near North Side](https://bbqgrillrepair.center/locations/chicagoland/near-north-side/) - [West Loop / Near West Side](https://bbqgrillrepair.center/locations/chicagoland/west-loop-near-west-side/) - [Wilmette](https://bbqgrillrepair.center/locations/chicagoland/wilmette/) - [Winnetka](https://bbqgrillrepair.center/locations/chicagoland/winnetka/) - [Glencoe](https://bbqgrillrepair.center/locations/chicagoland/glencoe/) - [River Forest](https://bbqgrillrepair.center/locations/chicagoland/river-forest/) - [Oak Park](https://bbqgrillrepair.center/locations/chicagoland/oak-park/) - [Hinsdale](https://bbqgrillrepair.center/locations/chicagoland/hinsdale/) - [Lake Forest](https://bbqgrillrepair.center/locations/chicagoland/lake-forest/) - [Highland Park](https://bbqgrillrepair.center/locations/chicagoland/highland-park/) - [Gold Coast](https://bbqgrillrepair.center/locations/chicagoland/gold-coast/) - [Lakeview](https://bbqgrillrepair.center/locations/chicagoland/lakeview/) [Los Angeles](https://bbqgrillrepair.center/locations/los-angeles/) CA · 95 areas - [Beverly Hills](https://bbqgrillrepair.center/locations/los-angeles/beverly-hills/) - [Bel Air](https://bbqgrillrepair.center/locations/los-angeles/bel-air/) - [Holmby Hills](https://bbqgrillrepair.center/locations/los-angeles/holmby-hills/) - [Brentwood](https://bbqgrillrepair.center/locations/los-angeles/brentwood/) - [Pacific Palisades](https://bbqgrillrepair.center/locations/los-angeles/pacific-palisades/) - [Santa Monica](https://bbqgrillrepair.center/locations/los-angeles/santa-monica/) - [Hancock Park](https://bbqgrillrepair.center/locations/los-angeles/hancock-park/) - [Studio City](https://bbqgrillrepair.center/locations/los-angeles/studio-city/) - [Calabasas](https://bbqgrillrepair.center/locations/los-angeles/calabasas/) - [Manhattan Beach](https://bbqgrillrepair.center/locations/los-angeles/manhattan-beach/) - [Palos Verdes Estates](https://bbqgrillrepair.center/locations/los-angeles/palos-verdes-estates/) - [Pasadena](https://bbqgrillrepair.center/locations/los-angeles/pasadena/) - [San Marino](https://bbqgrillrepair.center/locations/los-angeles/san-marino/) - [Malibu](https://bbqgrillrepair.center/locations/los-angeles/malibu/) [San Diego](https://bbqgrillrepair.center/locations/san-diego/) CA · 31 areas - [La Jolla](https://bbqgrillrepair.center/locations/san-diego/la-jolla/) - [Carmel Valley](https://bbqgrillrepair.center/locations/san-diego/carmel-valley/) - [Point Loma](https://bbqgrillrepair.center/locations/san-diego/point-loma/) - [Del Mar](https://bbqgrillrepair.center/locations/san-diego/del-mar/) - [Rancho Santa Fe](https://bbqgrillrepair.center/locations/san-diego/rancho-santa-fe/) - [Coronado](https://bbqgrillrepair.center/locations/san-diego/coronado/) - [Encinitas](https://bbqgrillrepair.center/locations/san-diego/encinitas/) - [Solana Beach](https://bbqgrillrepair.center/locations/san-diego/solana-beach/) [San Francisco Bay Area](https://bbqgrillrepair.center/locations/bay-area/) CA · 74 areas - [Pacific Heights](https://bbqgrillrepair.center/locations/bay-area/pacific-heights/) - [Presidio Heights](https://bbqgrillrepair.center/locations/bay-area/presidio-heights/) - [Russian Hill](https://bbqgrillrepair.center/locations/bay-area/russian-hill/) - [Noe Valley](https://bbqgrillrepair.center/locations/bay-area/noe-valley/) - [Sea Cliff](https://bbqgrillrepair.center/locations/bay-area/sea-cliff/) - [Hillsborough](https://bbqgrillrepair.center/locations/bay-area/hillsborough/) - [Atherton](https://bbqgrillrepair.center/locations/bay-area/atherton/) - [Woodside](https://bbqgrillrepair.center/locations/bay-area/woodside/) - [Palo Alto](https://bbqgrillrepair.center/locations/bay-area/palo-alto/) - [Los Altos Hills](https://bbqgrillrepair.center/locations/bay-area/los-altos-hills/) - [Tiburon](https://bbqgrillrepair.center/locations/bay-area/tiburon/) - [Piedmont](https://bbqgrillrepair.center/locations/bay-area/piedmont/) - [Marina](https://bbqgrillrepair.center/locations/bay-area/marina/) For the heart of your home. ## Questions about Knob LEDs sweep back and forth. ### Can I clear Knob LEDs sweep back and forth myself? Wait for the lights to settle; after a power cycle Lynx allows up to a minute. ### How long do the Lynx SmartGrill knob lights sweep when I turn it on? Until the computer has booted, which Lynx puts at 20 to 60 seconds after a restart. The grill says it is ready when it has finished. ### Can I turn a SmartGrill knob while the lights are sweeping? Wait until it is ready. The controller reads the knobs, and while it is loading it may not act on them. ### My SmartGrill knob lights are dark. Is that the same thing? No. Dark lights mean no power, so check that the grill is plugged in and that the GFCI outlet has not tripped. --- **[Read on the site: Lynx SmartGrill knob lights sweeping: the grill is starting up](https://bbqgrillrepair.center/error-codes/lynx-knob-leds-oscillating/)** **[Book a visit with BBQGrillRepair.center](https://bbqgrillrepair.center/schedule/)**