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Error code reference

Dacor Range Error Code Oven On Indicator Light blinks once every 2 seconds

Oven temperature sensor is open (open circuit).

Dacor codesDacor range codes

Oven temperature sensor is open (open circuit).

First step from the service manual

Check oven temperature sensor OHM value at controller board P2; should be 1050-1100 ohms at room temperature.

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

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What Oven On Indicator Light blinks once every 2 seconds means on a Dacor range

The Oven On Indicator Light blinking once every two seconds on a Dacor range signals that the oven temperature sensor circuit is open. An open circuit means electrical continuity through the sensor has been completely broken, so the oven control board cannot receive any temperature data. Without valid temperature feedback, the control board cannot regulate heating elements safely and will halt oven operation to prevent uncontrolled heating.

The oven temperature sensor is a resistive probe, typically mounted inside the oven cavity near the rear wall. At room temperature, a properly functioning sensor should measure between 1050 and 1100 ohms when tested at controller board connector P2. A reading that is significantly higher than this range, or shows infinite resistance (OL on a multimeter), confirms the circuit is open. This test at the controller board is critical because it checks the entire circuit loop, including the sensor itself and all wiring between the sensor and the board.

The most common causes of an open circuit in this system include a failed sensor element, damaged or disconnected wiring in the harness between the sensor and the control board, or a corroded connector at board P2. Physical damage from high heat exposure inside the oven cavity can degrade sensor wiring over time. Because the oven will not operate with this fault active, the issue must be diagnosed and resolved before normal cooking functions will resume.

Source: manufacturer service documentation.

Common causes of Oven On Indicator Light blinks once every 2 seconds

  1. 01

    Failed oven temperature sensor

    Part replacement

    The sensor probe itself has burned out or broken internally, resulting in an open circuit. Testing the sensor at controller board connector P2 will show a resistance value outside the 1050 to 1100 ohm range at room temperature, or infinite resistance.

  2. 02

    Broken or damaged sensor wiring harness

    Part replacement

    The wiring connecting the temperature sensor to the control board can crack, fray, or break from repeated heat exposure inside the oven cavity. Visually inspect the harness along its full length for burn marks, breaks, or pinched sections.

  3. 03

    Disconnected or loose connector at board P2

    Wiring / connection

    The sensor wiring connector at controller board P2 may have worked loose or pulled partially out, interrupting the circuit without damaging any components. Check that the connector is fully seated and locked at P2 before replacing any parts.

  4. 04

    Corroded connector terminals

    Wiring / connection

    Moisture or grease contamination can cause corrosion to build up on the sensor connector terminals at board P2, increasing resistance to the point of an open circuit. Inspect the terminals for oxidation or buildup and clean as needed.

See the test procedure for each cause

Frequently asked questions about Oven On Indicator Light blinks once every 2 seconds

What does Oven On Indicator Light blinks once every 2 seconds mean on a Dacor range?
This blinking pattern indicates the oven temperature sensor circuit is open, meaning the control board is not detecting any resistance signal from the sensor. The oven cannot measure its internal temperature and will not operate until the fault is resolved. The first diagnostic step is to measure the sensor resistance at controller board connector P2, which should read between 1050 and 1100 ohms at room temperature.
Can I fix a Dacor oven temperature sensor fault myself?
A knowledgeable DIYer can perform the initial resistance check at board connector P2 using a multimeter to determine whether the sensor, wiring, or connector is at fault. If the sensor reads open or far outside the 1050 to 1100 ohm specification, replacing the sensor probe is a manageable repair that involves removing the old probe from the oven cavity and reconnecting the new one. However, if the fault traces to the control board or internal wiring harness, professional service is recommended.
Is it safe to use my Dacor range while the Oven On light is blinking?
The oven itself will not heat while this fault is active, so there is no immediate safety risk from the oven overheating. However, you should not attempt to bypass or ignore the fault, as the open sensor means the oven has no way to regulate its temperature. Surface burners on a gas or electric range may still function, but the oven should remain unused until the sensor circuit is repaired.
Will resetting my Dacor range clear this error?
Resetting the range by cycling power at the breaker will not clear this error if the underlying sensor circuit fault still exists. The control board will re-detect the open circuit on the next power-up and resume the blinking indicator. The fault will only clear once the sensor, wiring, or connector issue is physically corrected and the circuit reads within the proper resistance range.
How much does it cost to repair a Dacor oven temperature sensor?
Replacement oven temperature sensors for Dacor ranges typically cost between $30 and $80 for the part alone, depending on the specific model. If a technician is performing the repair, total costs including labor generally range from $100 to $250. Costs can be higher if the issue involves wiring harness repair or control board replacement rather than just the sensor probe.

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