Wolf legacy dual-fuel range
showing 03
ERR 03 tells you the legacy dual-fuel control sees an open circuit on the RTD, the resistance sensor inside the oven that reports cavity temperature.
Mon–Sat, 8am–8pm
- Temperature sensor
- Temperature sensor and thermostat repair
- Source: Wolf
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What 03
actually means.
ERR 03 tells you the legacy dual-fuel control sees an open circuit on the RTD, the resistance sensor inside the oven that reports cavity temperature. Owners often notice it together with cooling fans that keep running after the oven is off.
Wolf range display · also shown as ERR 03, Err 3
What to do when 03 shows on the rangeKind of codeTemperature sensor
The oven sensor sent a reading the control would not accept, or one that climbed well past the setting. A loose plug or a sensor that has drifted is ruled out before the control board, and a temperature that keeps rising means the range is switched off at the breaker first.
Usually leads toTemperature sensor and thermostat repair
A range oven that bakes hot, bakes slow, takes forever to preheat or posts a sensor code, traced to the sensor probe, the thermostat or the calibration.
Shows up asRange Oven Not Heating
The burners or elements on top work, but the oven below stays cold, heats only a little, or never finishes preheating.
MakeWolf
The cooking brand of the Wisconsin-based Sub-Zero Group, known for red-knobbed gas, dual-fuel and induction ranges.
SourceWolf answer: legacy dual-fuel range, error code 03
Legacy Wolf dual-fuel ranges with the oven selector knob display.
Before you book,
in this order.
Each step comes from Wolf's own guidance for 03 on its ranges. Follow it to the end: the last card says whether this is a visit.
Cycle the breaker off for about 30 seconds, turn it back on and run the oven once more.
If ERR 03 comes back or the cooling fan never stops, book a visit.
Still there?
It usually turns into temperature sensor and thermostat repair. Book with the code and the model number.
What not to do
A cooling fan that runs non-stop is a side effect listed under ERR 03, not a separate fan problem to chase first.
What you may
notice with it.
The range problems 03 tends to arrive with. Answer these at the range before anyone is booked.
All problems
Range Oven Not Heating
7 causes, cheapest first
Where 03 usually leads
Temperature sensor and thermostat repair.
Wolf
ranges.
The cooking brand of the Wisconsin-based Sub-Zero Group, known for red-knobbed gas, dual-fuel and induction ranges.
Wolf range repair
Gas range
Open flames on top and a gas-fired oven below, all fed by one supply line behind the range and lit by igniters rather than a match.
Dual-fuel range
Gas burners on top and an electric oven below, the combination most professional-style ranges use, needing both a gas line and a 240-volt circuit.
Induction range
A glass top that heats the pan itself through copper coils and power boards, over an electric oven, with electronics doing almost all the work.
In Wolf's own words
Open circuit detected on RTD oven sensor
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Legacy Wolf dual-fuel ranges with the oven selector knob display.
Wolf 03 range 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 03.
Can I clear 03 myself?
Why is the fan still running on my Wolf range with ERR 03?
Can ERR 03 on a Wolf be fixed by recalibrating the oven?
Back to your everyday
Still showing 03?
Book with the code exactly as it appears, the full model number, and whether you notice any smell of gas or scorching — with a code, that is where the diagnosis begins.