PizzaOvenRepair.center (844) 747-3662Mon–Sat, 8am–8pm Book a visit
The inside of a cold commercial deck oven in a pizzeria with its door open, the pizza oven's stone deck bare and a thin steel temperature probe visible along the back wall, nobody at the oven.

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.

(844) 747-3662

Mon–Sat, 8am–8pm

  • Temperature and sensors
  • Pizza oven thermostat and control repair
  • Source: Fontana Forni

Book a visit

Three short steps, about a minute.

or call (844) 747-3662

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 codeTemperature 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 toPizza 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 asPizza 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.

MakeFontana 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.

SourceFontana 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. 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

Before you call

Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display

All 7 causes, cheapest first

It also comes with

Close view of the dark digital control panel on the side of a stainless conveyor pizza oven, one abstract amber indicator glowing beside unlit segments, the edge of the pizza oven belt blurred behind it. 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

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

More Fontana Forni codes

Er2Er3Er4Er 5Er6Er7Er8noPFlashing flame iconFlashing Wi-Fi indicator

Temperature and sensors on other makes

Marra Forni OpenMiddleby Marshall PROBE # OPENTurboChef F2Wood Stone open
All 14 codes of this kind
A stainless outdoor gas pizza oven on a stone counter on a patio, a pizza oven with a wide low mouth and a blue gas flame rolling along the back wall under its dome, a golden pizza sitting on the stone floor inside, the pizza oven clearly the subject, plants softly blurred behind, daylight, seasonless. 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.

 A domed wood-fired pizza oven finished in warm plaster on a masonry base on a patio, a pizza oven with a round arched mouth and a short chimney above it, a small wood fire burning at the back of the brick floor, a pizza on the stone floor near the mouth, the pizza oven clearly the subject, daylight, seasonless. 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 Fontana Forni Volta 70 and 90 manual, USA and Canada edition, control panel

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.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A family sliding a pizza into a wood-fired pizza oven on a sunny patio.
For the heart of your home.

Questions
about Er1.

Can I clear Er1 myself?
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.

Back to your everyday

Still showing Er1?

A booking with a code goes further when it has the code copied as shown, the model and serial from the rating plate, and a note on whether the oven still lights, heats or moves its belt. With those three, the office can match the likely part to your oven the same day.

Schedule a repair Call (844) 747-3662
(844) 747-3662 Schedule a repair