--- title: "Fontana Forni Er1: the Volta pizza oven has lost its chamber temperature probe" description: "What Er1 means on Fontana Forni Er1: the Volta pizza oven has lost its chamber temperature probes, what to check before booking, and when it is not a failure at…" url: "https://pizzaovenrepair.center/error-codes/fontana-forni-er1/" --- # Fontana Forni Er1: the Volta pizza oven has lost its chamber temperature probe The Volta regulates its burner from one temperature probe, a K-type thermocouple in the cooking chamber. ## What Er1 actually means. The Volta regulates its burner from one temperature probe, a K-type thermocouple in the cooking chamber. Er1 appears when that probe or its lead is disconnected or broken, which leaves the controller with no chamber temperature to regulate against. Fontana Forni pizza oven display · also shown as ER1 What to do when Er1 shows on the pizza oven ### Kind of code Temperature and sensors A probe is handing the controller a reading it cannot believe, or none at all: a deck or tunnel sensor coated in baked-on flour and grease, its lead chafed or scorched where it passes the heat, or a connector loosened by years of doors slamming. The oven then runs hot, stalls short of its setting or shuts the heat off to protect itself. Letting the oven cool and restarting it is reasonable; a sensor that still reads wrong sits behind a panel, and that is a visit. ### Usually leads to Pizza oven thermostat and control repair Thermostats calibrated or replaced, probes, timers, boards and displays repaired, so the pizza oven holds the temperature the cooks set and shows the right number. ### 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 Fontana Forni A Fontana Forni visit leaves time for the door and the dial thermometer, two small parts that decide whether an owner trusts the fire at all. ### Source Fontana Forni Volta 70 and 90 manual, USA and Canada edition, troubleshooting error code table Listed in the Volta 70 and Volta 90 manual for the USA and Canada. Fontana's Maestro, hybrid and wood ovens have no display and show no codes. ## Before you book, in this order. Each step comes from Fontana Forni's own guidance for Er1 on its pizza ovens. Follow it to the end: the last card says whether this is a visit. 01 Press and hold the power button for three seconds to clear the message and switch the oven off. 02 Once the oven is cold, look inside the chamber at the probe tip and check that it has not been bent, knocked loose or pushed out of place by a peel. 03 Make sure the 12-volt adapter is pushed fully into the oven and into a GFCI outlet, then switch on and set a temperature again. 04 If Er1 returns, book a visit; the probe lead runs behind the control panel and the probe is replaced as a part. ### Still there? It usually turns into [pizza oven thermostat and control repair](https://pizzaovenrepair.center/services/pizza-oven-thermostat-and-control-repair/). Book with the code and the model number. ### What not to do Er1 has nothing to do with the two meat probes, which show noP when they are not plugged in. It is also not the overheat message: an oven that climbs past its limit shows Er3. ## What you may notice with it. The pizza oven problems Er1 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 - [**Pizza Oven Not Getting Hot Enough to Bake a Crisp Crust**](https://pizzaovenrepair.center/problems/pizza-oven-not-getting-hot/) - [**Gas Pizza Oven Won't Light: Clicks, Gas Hiss, Still No Flame**](https://pizzaovenrepair.center/problems/pizza-oven-wont-light/) Problem ### Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display 7 causes, cheapest first Where Er1 usually leads ## Pizza oven thermostat and control repair. **Thermostat calibrated or replaced, temperature probe, timer, controller board or display · moderate.** Book a visit [What the job involves](https://pizzaovenrepair.center/services/pizza-oven-thermostat-and-control-repair/) ## Fontana Forni pizza ovens. A Fontana Forni visit leaves time for the door and the dial thermometer, two small parts that decide whether an owner trusts the fire at all. [Fontana Forni pizza oven repair](https://pizzaovenrepair.center/brands/fontana-forni/) More Fontana Forni codes [Er2](https://pizzaovenrepair.center/error-codes/fontana-forni-er2/) [Er3](https://pizzaovenrepair.center/error-codes/fontana-forni-er3/) [Er4](https://pizzaovenrepair.center/error-codes/fontana-forni-er4/) [Er 5](https://pizzaovenrepair.center/error-codes/fontana-forni-er5/) [Er6](https://pizzaovenrepair.center/error-codes/fontana-forni-er6/) [Er7](https://pizzaovenrepair.center/error-codes/fontana-forni-er7/) [Er8](https://pizzaovenrepair.center/error-codes/fontana-forni-er8/) [noP](https://pizzaovenrepair.center/error-codes/fontana-forni-nop/) [Flashing flame icon](https://pizzaovenrepair.center/error-codes/fontana-forni-flashing-flame-icon/) [Flashing Wi-Fi indicator](https://pizzaovenrepair.center/error-codes/fontana-forni-flashing-wi-fi-indicator/) Temperature and sensors on other makes [Marra Forni Open](https://pizzaovenrepair.center/error-codes/marra-forni-open/) [Middleby Marshall PROBE # OPEN](https://pizzaovenrepair.center/error-codes/middleby-marshall-probe-open/) [TurboChef F2](https://pizzaovenrepair.center/error-codes/turbochef-f2/) [Wood Stone open](https://pizzaovenrepair.center/error-codes/wood-stone-open/) [All 14 codes of this kind](https://pizzaovenrepair.center/error-codes/#family-temperature) Fontana Forni builds this ### Outdoor gas pizza oven A stainless pizza oven on a counter, a cart or set into masonry, fired by propane or natural gas under a stone floor and a low insulated dome. Fontana 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. ## In Fontana Forni's own words > The temperature sensor (K-type probe) is disconnected or broken. [Fontana Forni Volta 70 and 90 manual, USA and Canada edition, troubleshooting error code table](https://cdn.shopify.com/s/files/1/0599/2356/2589/files/Manuale_VOlta_ENG-FRA_USA_CANADA_041225.pdf) [Fontana Forni Volta 70 and 90 manual, USA and Canada edition, control panel](https://cdn.shopify.com/s/files/1/0599/2356/2589/files/Manuale_VOlta_ENG-FRA_USA_CANADA_041225.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed in the Volta 70 and Volta 90 manual for the USA and Canada. Fontana's Maestro, hybrid and wood ovens have no display and show no codes. ## Fontana Forni Er1 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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Press and hold the power button for three seconds to clear the message and switch the oven off. If it comes back, it needs a visit. ### Can I keep cooking on my Fontana Volta while Er1 is showing? No. With the chamber probe gone, the controller has no temperature to work from, and Fontana's fix is to check the probe wire or replace the probe. Clear the message and try once; if Er1 comes back, leave the oven off until the probe has been checked. ### Is the Er1 probe on a Fontana Volta the same as the meat probes? No. Er1 is about the fixed K-type probe inside the cooking chamber. The two plug-in meat probes are separate, and an empty meat-probe port only shows noP. ### Why does Er1 on my Volta come back only after the oven heats up? A probe wire that is cracked or loose can read fine when cold and open up as the metal expands. That pattern still points to the probe or its lead, and it is worth mentioning when you book so the wire is checked hot. --- **[Read on the site: Fontana Forni Er1: the Volta pizza oven has lost its chamber temperature probe](https://pizzaovenrepair.center/error-codes/fontana-forni-er1/)** **[Book a visit with PizzaOvenRepair.center](https://pizzaovenrepair.center/schedule/)**