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Error code reference

Dacor Range Oven Cooktop Error Code F32

Discovery Range: RTD Open

Dacor codesDacor range oven cooktop codes

Discovery Range: RTD Open - open temperature sensor or open temperature sensor wiring.

First step from the service manual

Replace sensor or replace sensor wiring.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What F32 means on a Dacor range oven cooktop

The F32 error code on Dacor Discovery Range appliances indicates an open circuit condition in the RTD (Resistance Temperature Detector) system. An RTD is a temperature-sensing element that changes its electrical resistance in a predictable way as temperature rises and falls. The oven control board continuously monitors the resistance of this sensor to determine cavity temperature. When the circuit reads as open, meaning resistance is effectively infinite or no signal is returned at all, the control board cannot obtain a valid temperature reading and triggers the F32 fault.

The two primary sources of this fault are a failed RTD sensor itself or a break somewhere in the wiring harness that connects the sensor to the control board. A physically damaged sensor, one that has burned out internally or developed an internal open, will produce no resistance signal. Similarly, a wiring harness that has a broken wire, a corroded connector, or a terminal that has pulled out of its housing will interrupt the circuit in exactly the same way as a failed sensor.

Diagnosing F32 requires isolating whether the fault lies in the sensor or the wiring. Disconnecting the sensor and measuring its resistance with a multimeter at room temperature will confirm whether it is reading within specification. If the sensor measures correctly, inspection of the full wiring path from the sensor connector back to the control board is needed to locate any break, pinch point, or corroded terminal causing the open condition.

Source: manufacturer service documentation.

Common causes of F32

  1. 01

    Failed RTD temperature sensor

    Part replacement

    The RTD sensor itself has developed an internal open circuit and is no longer passing a resistance signal. This is the most common cause and can be confirmed by measuring the sensor's resistance with a multimeter at room temperature.

  2. 02

    Broken or damaged sensor wiring

    Part replacement

    A wire in the harness between the RTD sensor and the control board has broken, been pinched, or burned through, interrupting the circuit. Visually inspecting the full harness run and checking continuity with a multimeter will identify the break.

  3. 03

    Corroded or loose sensor connector

    Wiring / connection

    The connector at the sensor end or the control board end may have corroded terminals or a terminal that has backed out of the housing, creating an open circuit without a wire break. Inspecting and reseating connectors can resolve this without replacing the full harness.

  4. 04

    Heat damage to wiring near oven cavity

    Part replacement

    Wiring routed close to the oven cavity can sustain heat damage over time, causing insulation failure and wire breakage. Burned or discolored wiring near the sensor mounting location is a key indicator of this condition.

See the test procedure for each cause

Frequently asked questions about F32

What does F32 mean on a Dacor range, oven, cooktop?
F32 on a Dacor Discovery Range indicates that the control board is detecting an open circuit in the RTD temperature sensor system. This means the oven cannot read its internal temperature, either because the sensor itself has failed or because there is a break or fault in the wiring connecting the sensor to the control board. The oven will not operate normally until the faulty component is repaired or replaced.
Can I fix the F32 error myself?
A knowledgeable DIYer can address F32 by testing the RTD sensor with a multimeter and visually inspecting the wiring harness for damage or loose connectors. If the sensor reads as open at room temperature, it needs to be replaced. Wiring repairs or harness replacement are also possible for someone comfortable working with appliance electrical systems, but if any uncertainty exists about working safely with the oven's components, a qualified technician should handle the repair.
Is it safe to use my Dacor oven when F32 is displayed?
No, you should not continue using the oven while F32 is active. Without a functioning temperature sensor, the control board cannot regulate oven temperature accurately, which creates a risk of overheating. The oven should be left off until the sensor or wiring fault is corrected.
How much does it cost to fix the F32 error on a Dacor oven?
Repair costs vary depending on whether the sensor, wiring, or both need replacement. RTD sensors for Dacor Discovery ranges typically fall in the range of $30 to $80 for the part alone. If a technician is needed for diagnosis and installation, total repair costs including labor generally range from $100 to $250, depending on local labor rates and the extent of any wiring damage.
Will resetting the oven clear the F32 error code?
Resetting the oven by cycling power may temporarily clear the F32 code from the display, but the error will return as soon as the control board checks the sensor circuit again and detects the open condition. A reset does not address the underlying hardware fault. The sensor or wiring must be repaired or replaced to permanently resolve the error.

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