--- title: "Marra Forni High/Low flame indicator: which stage the brick oven burner is on" description: "What High/Low flame indicator means on Marra Forni High/Low flame indicator: which stage the brick oven burner is ons, what to check before booking, and when it…" url: "https://pizzaovenrepair.center/error-codes/marra-forni-high-low-flame-indicator/" --- # Marra Forni High/Low flame indicator: which stage the brick oven burner is on Marra Forni's gas brick ovens use a two-stage power burner, and the manual-mode screen carries a pair of lights labeled Low Flame and High Flame. ## What High/Low flame indicator actually means. Marra Forni's gas brick ovens use a two-stage power burner, and the manual-mode screen carries a pair of lights labeled Low Flame and High Flame. They tell you which stage the burners are on as the control works toward the set point. When the oven is 30 degrees or more above the set point, the burner will not come on at all, which is normal. Marra Forni pizza oven display · also shown as Low Flame, High Flame What to do when High/Low flame indicator shows on the pizza oven ### Kind of code Mode, not a failure No part of the oven has failed; the display is reporting a state someone chose or the oven entered on its own. A cool-down keeps the blowers turning after the heat is off until the cavity or the tunnel has dropped to a safe level, an energy save setting lets the decks sag between rushes, and a menu lock stops anyone on the line from changing the bake times. No part is needed: letting the cool-down run out, or the key sequence in the manual, brings the oven back. ### Usually leads to No repair Compare the lit stage with the oven and set temperatures on the same screen: high flame well below the set point and low flame near it is normal. ### Shows up as Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display A pizza oven error code shows as letters or numbers on the display of a conveyor, deck or rapid-cook oven, a flashing light on its panel, or a message about ignition, heat, belt or airflow. ### Make Marra Forni A Marra Forni oven in a working pizzeria is booked between services, with the fire allowed to drop far enough for safe hands at the mouth. ### Source Marra Forni Rotator brick oven manual, Rev. 5 2026, controller console manual mode (page 27) MarraSmart manual-mode screen on Marra Forni Rotator and Neapolitan gas and wood-gas brick ovens with MFB200 or MFB300 power burners, Rev. 5 2026 manuals. ## Before you book, in this order. Each step comes from Marra Forni's own guidance for High/Low flame indicator on its pizza ovens. Follow it to the end: the last card says whether this is a visit. 01 Compare the lit stage with the oven and set temperatures on the same screen: high flame well below the set point and low flame near it is normal. 02 If the burner will not come on, check whether the oven is already above the set point; Marra Forni suggests having the set point about 20 degrees above the oven temperature when restarting. 03 If the burner stays on High while the oven runs well past the set point, or will not leave Low while the oven is cold, book a visit to check the gas valve wiring and flame regulators. ### Cleared? The code has left the display, the decks or the tunnel come up to the set heat and hold it through a full service, the belt keeps its speed and the blowers run steady, all with no part changed. If the same code returns within a week, or on the next busy night, say so when you book. ### What not to do The High/Low lights are a status display, not a warning, and they do not measure flame quality. A burner that will not light at all and then stays off is usually the burner control's lockout, which is reset by cycling the main switch rather than shown on these lights. ## What you may notice with it. The pizza oven problems High/Low flame indicator tends to arrive with. Answer these at the pizza oven before anyone is booked. [All problems](https://pizzaovenrepair.center/problems/) Before you call ### [Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display](https://pizzaovenrepair.center/problems/pizza-oven-error-code/) [All 7 causes, cheapest first](https://pizzaovenrepair.center/problems/pizza-oven-error-code/) It also comes with - [**Deck Oven Temperature Drifting Away From the Dial Setting**](https://pizzaovenrepair.center/problems/deck-oven-temperature-drifting/) - [**Gas Pizza Oven Won't Light: Clicks, Gas Hiss, Still No Flame**](https://pizzaovenrepair.center/problems/pizza-oven-wont-light/) - [**Pizza Oven Uneven Bake: Burnt Edge, Raw Middle, Pale Bottom**](https://pizzaovenrepair.center/problems/pizza-oven-uneven-bake/) Problem ### Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display 7 causes, cheapest first No repair indicated ## Nothing to repair. No part of the oven has failed; the display is reporting a state someone chose or the oven entered on its own. A cool-down keeps the blowers turning after the heat is off until the cavity or the tunnel has dropped to a safe level, an energy save setting lets the decks sag between rushes, and a menu lock stops anyone on the line from changing the bake times. No part is needed: letting the cool-down run out, or the key sequence in the manual, brings the oven back. [How to read what your pizza oven is telling you](https://pizzaovenrepair.center/problems/pizza-oven-error-code/) ## Marra Forni pizza ovens. A Marra Forni oven in a working pizzeria is booked between services, with the fire allowed to drop far enough for safe hands at the mouth. [Marra Forni pizza oven repair](https://pizzaovenrepair.center/brands/marra-forni/) More Marra Forni codes [Open](https://pizzaovenrepair.center/error-codes/marra-forni-open/) [Day 1 of 5 (curing screen)](https://pizzaovenrepair.center/error-codes/marra-forni-day-of-5/) Mode, not a failure on other makes [Alfresco Igniter keeps glowing after the burner lights](https://pizzaovenrepair.center/error-codes/alfresco-igniter-glows-while-lit/) [Blodgett LOAD](https://pizzaovenrepair.center/error-codes/blodgett-load/) [Fontana Forni noP](https://pizzaovenrepair.center/error-codes/fontana-forni-nop/) [Middleby Marshall BELT OFF](https://pizzaovenrepair.center/error-codes/middleby-marshall-belt-off/) [TurboChef Oven Door Open](https://pizzaovenrepair.center/error-codes/turbochef-oven-door-open/) [Wood Stone LO](https://pizzaovenrepair.center/error-codes/wood-stone-lo/) [All 17 codes of this kind](https://pizzaovenrepair.center/error-codes/#family-mode) Marra Forni builds this ### Wood-fired pizza oven A refractory dome over a firebrick or cast hearth, fired with wood and often a gas burner too, with a chimney, a door and thick insulation around it. Marra Forni builds this ### Commercial deck oven A pizzeria's stacked steel oven with stone decks, heated by gas burners or electric elements, each deck with its own door, thermostat and controls. ## In Marra Forni's own words > High/Low Flame Indicator [Marra Forni Rotator brick oven manual, Rev. 5 2026, controller console manual mode (page 27)](https://marraforni.com/wp/wp-content/uploads/2026/05/Rotator-Manual-Marra-Forni-Rev-5-2026.pdf) [Marra Forni Rotator brick oven manual, Rev. 5 2026, trouble chart and recommendations (page 35)](https://marraforni.com/wp/wp-content/uploads/2026/05/Rotator-Manual-Marra-Forni-Rev-5-2026.pdf) [Marra Forni Rotator brick oven manual, Rev. 5 2026, troubleshooting](https://marraforni.com/wp/wp-content/uploads/2026/05/Rotator-Manual-Marra-Forni-Rev-5-2026.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. MarraSmart manual-mode screen on Marra Forni Rotator and Neapolitan gas and wood-gas brick ovens with MFB200 or MFB300 power burners, Rev. 5 2026 manuals. ## Marra Forni High/Low flame indicator pizza oven 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. 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Compare the lit stage with the oven and set temperatures on the same screen: high flame well below the set point and low flame near it is normal. ### Why is neither High nor Low lit on my Marra Forni oven? If the oven is already 30 degrees or more above the set point, the burner stays off by design. Raise the set point a little above the oven temperature; if nothing lights and the flame never comes, the burner may have locked out and needs the main switch cycled. ### My Marra Forni flame seems stuck on High. What does that mean? Marra Forni's troubleshooting links a flame stuck on High or Low to the wiring at the gas valve and to the temperature control. That is behind the consoles the manual says not to open, so book a visit. ### Does the Marra Forni flame indicator tell me the flame is healthy? No, it only shows the stage. The flame itself should be checked by eye through the mouth; Marra Forni's troubleshooting starts with the burner's air shutter setting when the flame looks wrong. --- **[Read on the site: Marra Forni High/Low flame indicator: which stage the brick oven burner is on](https://pizzaovenrepair.center/error-codes/marra-forni-high-low-flame-indicator/)** **[Book a visit with PizzaOvenRepair.center](https://pizzaovenrepair.center/schedule/)**