--- title: "When the pilot will not stay lit after you let go of the button" description: "The safety valve needs a hot sensor before it trusts the flame." url: "https://pizzaovenrepair.center/guides/when-the-pilot-will-not-stay-lit/" date_modified: "2026-09-26" --- Troubleshooting # When the pilot will not stay lit after you let go of the button A pizza oven pilot light, or a main burner with a flame sensor, goes out on release when the thermocouple or thermopile has not heated enough to hold the safety valve open. Hold the knob or button for the time the manual gives, 10 to 30 seconds, keep wind off the mouth and wait five minutes between tries. A pilot that still drops needs a technician. By [PizzaOvenRepair.center technical team](https://pizzaovenrepair.center/authors/technical-team/) Published September 26, 2026 ## At a glance. A flame that catches while you hold the knob and dies the moment you let go is a safety valve doing its job: it has not been convinced the flame is there. The question is why, and the answer runs from how long the button was held to a worn sensor that only a technician should replace. Read the whole guide ### Hold time, outdoor gas ovens 10 to 20 seconds after ignition Lynx and Kalamazoo, while the thermocouple warms. ### Hold time, deck ovens About 30 seconds Blodgett 1060 and Bakers Pride floor models. ### Wait after a failed try Five minutes Knob off, so unburned gas can clear first. ### Deck oven pilot in normal service Left lit day and night Bakers Pride says it prolongs the safety valve's life. In this guide 1. What keeps a flame lit once you let go 2. Relighting by the plate, with a wait between tries 3. Wind, draft and slamming doors 4. A weak pilot flame or a tired sensor 5. Pizza ovens with no standing pilot 6. Questions ## What keeps a flame lit once you let go Standing pilots and many outdoor burners use a thermocouple, or on some deck ovens a thermopile: a metal tip that sits in the flame and makes a tiny current when hot. That current holds a small magnet in the gas valve open. Until the tip is hot, the valve is held open only by your thumb on the knob or button, and the instant you release it early, the gas stops. So the first suspect is simply time. Lynx asks owners of its Napoli oven to keep the knob pressed for ten to twenty seconds after ignition; Kalamazoo says at least ten, and explains that its lower and upper burners each have their own thermocouple. On deck ovens the wait is longer: Blodgett's 1060 has the red pilot button held for about thirty seconds after the pilot lights, and Bakers Pride gives the same half minute for its floor models. ### Hold times from the makers' manuals - Lynx Napoli: knob held in 10 to 20 seconds after the burner lights. - Kalamazoo Artisan Fire: at least 10 seconds for each burner. - Blodgett 1060 deck: red pilot button held about 30 seconds. - Bakers Pride floor deck: red button about 30 seconds; the main valve opens fully one to two minutes later. Source: [Lynx — Napoli outdoor oven use and install guide](https://www.lynxgrills.com/file/12995) — Keep the knob in 10 to 20 seconds after ignition while the thermocouple heats; releasing early shuts the gas; no flame in 5 seconds: off and wait 5 minutes; [Kalamazoo — Artisan Fire pizza oven use and care guide](https://cdn.shopify.com/s/files/1/0957/4006/8119/files/Kalamazoo-Artisan-Fire-Pizza-Oven-Use-and-Care-Guide-North-America-English.pdf?v=1770872374) — Hold at least 10 seconds; each burner has its own thermocouple; wait 5 minutes after a failed attempt; do not place the oven where the door opening faces strong wind; [Blodgett — 1060 gas deck oven installation, operation, maintenance](https://www.blodgett.com/custom/PDF/manuals/1060-man-english.pdf) — After the pilot lights, keep the red button depressed about 30 seconds ## Relighting by the plate, with a wait between tries Deck ovens carry lighting instructions on or near the valve, and they are worth following word for word. Bakers Pride's sequence starts with the red handle on the gas shutoff turned off and a five-minute wait so any gas in the burner compartment can escape, then the red button is pressed and the pilot lit and held. If the pilot fails to light or will not stay lit, the manual says to repeat those same steps from the beginning, wait included. Outdoor ovens follow the same logic. Lynx and Kalamazoo both say that when the flame does not appear within about five seconds the knob goes to off for five minutes. Keep your face away from the mouth while lighting, and stop after two or three careful tries; a pilot that will not hold after that is telling you something a fourth attempt will not change. ### A knob that goes in too far Alfa lists one mechanical cause worth checking on its gas ovens: if the knob is pushed in so far that it hits, the pilot may not get the gas it needs to light. A knob that has slipped on its shaft, or a bezel that has shifted after cleaning, can cause the same thing. Look at whether the knob sits square and at the same depth as its neighbor; do not pull the valve or panel apart to find out. Source: [Lynx — Napoli outdoor oven use and install guide](https://www.lynxgrills.com/file/12995) — Keep the knob in 10 to 20 seconds after ignition while the thermocouple heats; releasing early shuts the gas; no flame in 5 seconds: off and wait 5 minutes; [Kalamazoo — Artisan Fire pizza oven use and care guide](https://cdn.shopify.com/s/files/1/0957/4006/8119/files/Kalamazoo-Artisan-Fire-Pizza-Oven-Use-and-Care-Guide-North-America-English.pdf?v=1770872374) — Hold at least 10 seconds; each burner has its own thermocouple; wait 5 minutes after a failed attempt; do not place the oven where the door opening faces strong wind; [Bakers Pride — Y600/Y800 series deck ovens operation manual](https://bakerspride.com/wp-content/uploads/2021/01/y600-y800-series-deck-ovens-ops-manual-min.pdf) — Shutoff off and wait five minutes, then hold the red button about 30 seconds; valve opens fully after 1–2 minutes; pilot normally stays lit day and night; correct pilot flame size; thermopile out of the flame or defective; pilot position overnight Close on the pilot flame beside the burner of a deck pizza oven, a lower panel open. ## Wind, draft and slamming doors A pilot flame is small, and air moving past it can bend it away from the sensor tip or blow it out. Outdoors, Kalamazoo tells owners not to place its pizza oven where the door opening is likely to face strong wind. An oven that lights every calm evening and loses its flame on breezy ones is usually telling you about its placement, not about a part; a screen or a new spot out of the prevailing wind often ends it. Indoors the air moves too. A deck oven under a powerful hood, near a back door that swings open all evening or beside a fan can lose its pilot in a draft that nobody notices. Note whether it goes out at particular times: at opening, at the rush, when the delivery door is propped open. ### Habits that help an outdoor oven hold its flame - Light with the door off, as most manuals ask, then fit it once the burner is steady. - Stand upwind of the mouth, and move anything that funnels a breeze into it, such as a propped-up cover or an open gate. - Give a windy evening a longer hold on the knob before letting go. - Keep the burner area free of leaves and grit that disturb the flame. Source: [Kalamazoo — Artisan Fire pizza oven use and care guide](https://cdn.shopify.com/s/files/1/0957/4006/8119/files/Kalamazoo-Artisan-Fire-Pizza-Oven-Use-and-Care-Guide-North-America-English.pdf?v=1770872374) — Hold at least 10 seconds; each burner has its own thermocouple; wait 5 minutes after a failed attempt; do not place the oven where the door opening faces strong wind ## A weak pilot flame or a tired sensor The flame has to wrap the sensor tip. Bakers Pride stresses that the pilot flame must be the correct size and lists a thermopile sitting outside the pilot flame, or a thermopile that has failed, among the reasons the main burners will not light. On a busy deck, flour dust and grease settle in the tiny pilot orifice over the months and shrink the flame until it no longer reaches the tip. Sensors wear too. Every heat cycle ages a thermocouple, and its connection at the valve can loosen. Both are simple parts for a technician and not ones to bend, sand or tighten from the front of a live oven. Nothing should ever be used to hold the safety valve open: a jammed button or a weighted knob removes the one thing that stops raw gas when the flame goes out. ### Notes that speed up the visit How long you held the knob or button, whether the pilot flame looked small, yellow or lifting, whether it goes out at once or after minutes or hours, and whether wind, the hood or a door seems to be involved. On outdoor ovens with a flame sensor on the main burner, note whether the burner dies on release or after running for a while. Source: [Bakers Pride — Y600/Y800 series deck ovens operation manual](https://bakerspride.com/wp-content/uploads/2021/01/y600-y800-series-deck-ovens-ops-manual-min.pdf) — Shutoff off and wait five minutes, then hold the red button about 30 seconds; valve opens fully after 1–2 minutes; pilot normally stays lit day and night; correct pilot flame size; thermopile out of the flame or defective; pilot position overnight ## Pizza ovens with no standing pilot Many newer ovens light the burner directly with a spark or a hot-surface igniter and prove the flame electronically. When those lose their flame the symptom is a burner that lights and then shuts down, often with a message. Alfresco notes that if the power drops while its pizza oven is running, the safety gas valves close within ten to thirty seconds and the oven resumes once power returns, so a flicker on the circuit can look like a flame problem. Middleby Marshall's advice for a conveyor burner that does not light is to switch the oven off, restart it once and call for service if it still fails. Source: [Alfresco — AXE-PZA pizza oven care and use manual](https://alfrescogrills.com/wp-content/uploads/2021/07/AXE-PZA-CARE-AND-USE-MANUAL-SERIAL-N%C2%B0-18-00000-FORWARD.pdf) — If power is interrupted, the safety gas valves close within 10 to 30 seconds and the unit resumes when power returns; [Middleby Marshall — PS640 gas conveyor oven owner's manual](https://www.middlebymarshall.com/wp-content/uploads/2022/08/PS640G-IO-Manual-60251-Rev-J_NEW-2025.pdf) — Burner did not light: turn the oven off and restart; if it still does not light, call for service ## Where to stop Book a visit once the pilot or burner keeps going out after two or three careful tries with the full hold time, the five-minute wait and the wind kept off. Pilot flame adjustment, orifices, thermocouples, thermopiles and valves are technician work. Owners do not open a gas fitting, remove a panel over live wiring, check for leaks with a flame or wedge a valve open, and anyone who smells gas turns everything off, closes the supply and leaves the lighting for another day. Written by [PizzaOvenRepair.center technical team](https://pizzaovenrepair.center/authors/technical-team/). Technicians servicing backyard pizza ovens and pizzeria deck and conveyor ovens, drawing on field visits and oven manuals. Sources: [Lynx — Napoli outdoor oven use and install guide](https://www.lynxgrills.com/file/12995) · [Kalamazoo — Artisan Fire pizza oven use and care guide](https://cdn.shopify.com/s/files/1/0957/4006/8119/files/Kalamazoo-Artisan-Fire-Pizza-Oven-Use-and-Care-Guide-North-America-English.pdf?v=1770872374) · [Blodgett — 1060 gas deck oven installation, operation, maintenance](https://www.blodgett.com/custom/PDF/manuals/1060-man-english.pdf) · [Bakers Pride — Y600/Y800 series deck ovens operation manual](https://bakerspride.com/wp-content/uploads/2021/01/y600-y800-series-deck-ovens-ops-manual-min.pdf) · [Alfa Forni — User manual, domestic ovens (North America)](https://www.alfaforni.com/download/user-manual/home/user_manual_domestic_ovens-NA.pdf) · [Alfresco — AXE-PZA pizza oven care and use manual](https://alfrescogrills.com/wp-content/uploads/2021/07/AXE-PZA-CARE-AND-USE-MANUAL-SERIAL-N%C2%B0-18-00000-FORWARD.pdf) · [Middleby Marshall — PS640 gas conveyor oven owner's manual](https://www.middlebymarshall.com/wp-content/uploads/2022/08/PS640G-IO-Manual-60251-Rev-J_NEW-2025.pdf) For the heart of your home. ## Questions owners ask. ### Should the pilot on our deck oven be turned off every night? That depends on the oven, so check its book. Bakers Pride says the pilot on its floor-model deck ovens normally stays lit day and night, which prolongs the safety valve's life, and asks for the oven to be set to its pilot position overnight rather than left on a high setting. ### Why does the burner stay lit while I hold the knob and go out when I let go? Because until the thermocouple is hot, your hand is what keeps the gas valve open. Hold for the full time your manual gives. If it still drops after that, the sensor, its position in the flame or the valve needs a technician. ### Can I just replace the thermocouple myself? It connects to the gas valve, and a loose or cross-threaded joint there is a gas connection. We replace it, check that the flame wraps the new tip and confirm the valve shuts off when the flame goes out. ### Is a yellow pizza oven pilot light a problem? A small, soft, yellow pilot usually means too little gas or air reaching it, often from dust in the orifice. It may heat the sensor too little to hold the valve. Leave the adjustment to a technician. ## The problems behind it. Each has a page of its own: what it usually means and the causes in the order worth checking. [All 17 problems](https://pizzaovenrepair.center/problems/) Problem ### Pizza Oven Pilot Won't Stay Lit Once the Knob Is Released 6 causes, cheapest first Problem ### Gas Pizza Oven Won't Light: Clicks, Gas Hiss, Still No Flame 7 causes, cheapest first Gas, fire or smoke at the oven ### Pizza Oven Gas Smell Near the Burner or Supply Line: Act First 6 causes, cheapest first Problem ### Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display 7 causes, cheapest first ## When it needs a technician. The repairs on the right are where this guide ends when the checks do not settle it. ### Pizza oven gas valve and thermocouple repair Safety valves, pilots, thermocouples, flame rods and regulators replaced and leak-checked, so the gas stays on while there is flame and shuts when there is none. ### Pizza oven burner and igniter repair Pizza oven burners cleared or replaced and igniters fitted and gapped, so the flame lights first time and burns blue and steady under the stone. ### Pizza oven diagnostic visit One visit to learn why the pizza oven will not light, heat, hold temperature or draw: gas, flame, stone, chimney, belt and controls each checked. ## More in troubleshooting. The checks a pizza oven owner can make safely, from the gas shutoff, the tank and the breaker to the pilot, the door, the ash and the rating plate, and where to stop and book. [The whole section](https://pizzaovenrepair.center/guides/troubleshooting/) Safe checks with the oven cold ### Pizza oven troubleshooting in half an hour, with the fire out The plate, the shutoff and cylinder, the breaker, GFCI and igniter battery, then ash, wood and the door on a dome, or the message on a conveyor screen. What to write down, and the four signs that end the checks. Safe checks with the oven cold ### Find the pizza oven rating plate: under the tray, round the back or behind the panel Model, serial number and gas type, and every maker puts them somewhere else. Where outdoor gas ovens, domes, deck ovens and conveyors keep the plate, the copy in the manual, and how to read one the heat has darkened. Guides ### All 18 guides Six sections, by what you are trying to find out. --- **[Read on the site: When the pilot will not stay lit after you let go of the button](https://pizzaovenrepair.center/guides/when-the-pilot-will-not-stay-lit/)** **[Book a visit with PizzaOvenRepair.center](https://pizzaovenrepair.center/schedule/)**