

Wood Stone PROB: the Type 1 controller has lost its thermocouple
Type 1 controllers, the ones with separate green and red push buttons, show PROB where later controllers show open.
Mon–Sat, 8am–8pm
- Temperature and sensors
- Pizza oven thermostat and control repair
- Source: Wood Stone
Book a visit
Three short steps, about a minute.
or call (844) 747-3662
Loading appointment form…
The appointment form couldn’t load. Please try again.
What PROB
actually means.
Type 1 controllers, the ones with separate green and red push buttons, show PROB where later controllers show open. The controller has no signal from the floor thermocouple, so it cannot run the underfloor burner to a set point.
Wood Stone pizza oven display · also shown as prob
What to do when PROB shows on the pizza ovenKind 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.
MakeWood Stone
Where a Wood Stone oven faces the dining room, the tech plans the visit around guests who can watch the hearth from their tables.
SourceWood Stone Mountain Series and Traditional Series service manual (M0014.10)
Type 1 controllers (NCC or Wood Stone labeled modules with push-button start and stop switches) on older Mountain Series and Traditional Series ovens with an underfloor IR burner.
Before you book,
in this order.
Each step comes from Wood Stone's own guidance for PROB on its pizza ovens. Follow it to the end: the last card says whether this is a visit.
Switch the oven off and let the floor cool.
Note whether PROB appeared right after work was done under the oven, since a disturbed plug is the likeliest cause.
Book a visit so the connections on the controller and in the junction box under the oven can be checked before a thermocouple is ordered.
Still there?
It usually turns into pizza oven thermostat and control repair. Book with the code and the model number.
What not to do
PROB is not a request to reprogram the controller and has nothing to do with the dead band settings. It is also not FAIL, which points to the temperature module itself.
What you may
notice with it.
The pizza oven problems PROB tends to arrive with. Answer these at the pizza oven before anyone is booked.
All problemsWhere PROB usually leads
Pizza oven thermostat and control repair.
Wood Stone
pizza ovens.
Where a Wood Stone oven faces the dining room, the tech plans the visit around guests who can watch the hearth from their tables.
Wood Stone pizza oven repairMore Wood Stone codes
Temperature and sensors on other makes
All 11 codes of this kind
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.
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.
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 Wood Stone's own words
Display reads “PROB”
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Type 1 controllers (NCC or Wood Stone labeled modules with push-button start and stop switches) on older Mountain Series and Traditional Series ovens with an underfloor IR burner.
Wood Stone PROB 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 areasTampa BayFL · 31 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
Questions
about PROB.
Can I clear PROB myself?
Is PROB on a Wood Stone oven the same as open?
Does PROB mean the Wood Stone thermocouple must be replaced?
Will the burners still run with PROB on the display?
Back to your everyday
Still showing PROB?
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.