

Wood Stone LO: the hearth is below 100 degrees Fahrenheit
The Type 4 controller shows LO instead of a number until the floor thermocouple reads 100 °F.
Mon–Sat, 8am–8pm
- Mode, not a failure
- No repair needed
- Source: Wood Stone
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What LO
actually means.
The Type 4 controller shows LO instead of a number until the floor thermocouple reads 100 °F. A cold oven, or one just lit, shows it as a matter of course.
Wood Stone pizza oven display · also shown as lo
What to do when LO shows on the pizza ovenKind of codeMode, 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 toNo repair
Light the oven as usual and give the floor time to warm; LO should give way to a 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 4 controllers on RFG ovens shipped after August 2005 and ovens converted from wood to gas.
Before you book,
in this order.
Each step comes from Wood Stone's own guidance for LO on its pizza ovens. Follow it to the end: the last card says whether this is a visit.
Light the oven as usual and give the floor time to warm; LO should give way to a number.
If the dome flame is burning and LO stays for a long time, check that the flame height knob is not at its lowest mark.
If LO never clears on a hot oven, book a visit so the thermocouple and its wiring can be checked.
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
LO is not a low-gas or low-flame warning. It is also not open, which means the sensor has no connection at all.
What you may
notice with it.
The pizza oven problems LO tends to arrive with. Answer these at the pizza oven before anyone is booked.
All problemsNo 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.
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
Mode, not a failure on other makes
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
This is normal. Controller will display “LO” whenever the oven floor
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Type 4 controllers on RFG ovens shipped after August 2005 and ovens converted from wood to gas.
Wood Stone LO 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 LO.
Can I clear LO myself?
Why does my Wood Stone oven read LO when I turn it on?
Is LO on a Wood Stone oven a sign the gas is low?
How long should LO stay on a Wood Stone oven?
Back to your everyday
Still showing LO?
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.