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Error code reference

Dacor Range Oven Cooktop Error Code L80

Meat probe (lower oven)

Dacor codesDacor range oven cooktop codes

Meat probe (lower oven) - check for shorted/open wires/probe.

First step from the service manual

Check for shorted/open wires/probe.

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

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What L80 means on a Dacor range oven cooktop

The L80 error code on a Dacor range or oven indicates a fault detected in the meat probe circuit for the lower oven. The meat probe is a temperature-sensing device that plugs into a dedicated port inside the oven cavity, allowing the appliance to monitor the internal temperature of food during cooking. The control board continuously monitors the electrical signal coming from the probe. When the resistance value falls outside the expected range, either too low (indicating a short circuit) or reading as infinite resistance (indicating an open circuit), the board triggers the L80 fault to alert the user and halt probe-dependent cooking functions.

The two primary failure states are a shorted probe and an open probe. A shorted condition means the internal wiring of the probe or the wiring harness leading to the probe port has developed a low-resistance path where one should not exist, causing the control to read an incorrect temperature signal. An open condition means the circuit is broken entirely, which can result from a damaged probe tip, a broken wire inside the probe cable, or a corroded or damaged probe receptacle inside the oven cavity.

Diagnosing L80 begins with inspecting the probe itself and the wiring between the probe port and the control board. The probe cable should be checked for visible damage such as melted insulation, pinched wires, or corrosion at the connector. If the probe appears intact, resistance across the probe terminals can be measured with a multimeter to determine whether the probe element is within specification. Wiring continuity between the probe port and the control board should also be verified before condemning either component.

Source: manufacturer service documentation.

Common causes of L80

  1. 01

    Damaged or failed meat probe

    Part replacement

    The probe itself is the most frequent cause. Internal wire breaks or a failed sensing element will cause the resistance to read open or out of range. Test the probe with a multimeter across its terminals to check for proper resistance.

  2. 02

    Probe cable damage

    Part replacement

    The flexible cable connecting the probe to the oven port can be pinched by oven racks, burned by contact with heating elements, or develop cracked insulation over time. Visually inspect the full length of the cable for signs of heat damage or physical wear.

  3. 03

    Corroded or damaged probe receptacle

    Wiring / connection

    The probe port inside the oven cavity can accumulate grease, moisture, or corrosion that disrupts the electrical connection. Inspect the receptacle for debris, corrosion, or bent contacts and clean carefully if needed.

  4. 04

    Damaged wiring harness between port and control board

    Part replacement

    The internal wiring running from the probe receptacle to the control board can develop an open or short due to heat exposure or loose connections. Use a multimeter to check continuity along this harness.

  5. 05

    Faulty control board

    Part replacement

    If the probe, cable, receptacle, and internal wiring all test correctly, the control board's probe sensing circuit may have failed. This is the least likely cause and should only be considered after all other components are ruled out.

See the test procedure for each cause

Frequently asked questions about L80

What does L80 mean on a Dacor range, oven, cooktop?
L80 indicates a fault in the meat probe circuit for the lower oven. The control board has detected that the probe or its associated wiring is either shorted or has an open circuit. This fault affects probe-guided cooking functions and requires inspection of the probe, cable, and wiring before the issue can be resolved.
Can I fix the L80 error myself?
If you are comfortable using a multimeter and working around appliance wiring, many of the diagnostic steps are DIY-friendly. You can visually inspect the probe and cable, clean the probe receptacle, and test probe resistance with a multimeter. Replacing a meat probe is typically straightforward. However, if the fault traces back to internal wiring or the control board, professional repair is recommended.
Is it safe to use my Dacor oven while the L80 code is showing?
The L80 fault is specific to the meat probe circuit and does not necessarily indicate a hazard with the oven's main heating functions. However, any probe-based cooking mode will not operate correctly while this fault is active. It is best to stop using the probe until the fault is diagnosed and resolved to avoid incorrect temperature monitoring.
Will resetting the oven clear the L80 error code?
Resetting the oven by cycling power at the breaker may temporarily clear the code, but it will return if the underlying fault in the probe circuit has not been corrected. A reset alone is not a repair. The probe, cable, and wiring must be inspected and the faulty component replaced to resolve the error permanently.
How much does it cost to repair the L80 error on a Dacor oven?
If only the meat probe needs replacement, parts typically cost in the range of $30 to $80 depending on the model, making it one of the more affordable repairs. If internal wiring or the control board is involved, repair costs can rise to $150 to $400 or more including labor. Getting a diagnostic assessment from a qualified technician can help narrow down the expense before committing to a repair.

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