Dacor Range Error Code Oven On Indicator Light blinks once every 5 seconds

This blinking pattern indicates that the control board has detected a short in the oven temperature sensor circuit. The sensor, which monitors oven temperature by varying its electrical resistance, is reading outside the expected range of 1050 to 1100 ohms at room temperature. The oven cannot operate safely or accurately until the fault is diagnosed and the sensor or wiring is repaired or replaced.

The oven should not be used while the temperature sensor short fault is active. Without a functioning temperature sensor, the control board cannot accurately monitor or regulate oven temperature, which creates a risk of overheating or unpredictable oven behavior. The stovetop burners may still be usable, but the oven itself should remain off until the fault is resolved.

Resetting the range by cycling power at the breaker may temporarily clear the blinking indicator, but the fault will return as soon as the control board polls the sensor circuit again and detects the out-of-range resistance. Because the fault is caused by a physical defect in the sensor or wiring, a reset alone will not fix the underlying problem. The sensor and harness must be tested and the faulty component repaired or replaced for the error to be permanently resolved.

A knowledgeable DIYer can perform the initial resistance check at controller board connector P2 using a multimeter to determine if the sensor is out of spec. If the sensor resistance is low, replacing the oven temperature sensor is a relatively straightforward repair involving disconnecting the wiring harness and removing the sensor probe from the oven cavity. However, if the wiring harness or control board is involved, the repair becomes more complex and a qualified technician may be advisable.

Replacement oven temperature sensors for Dacor ranges typically cost between $20 and $80 for the part, depending on the specific model. If a technician is performing the repair, expect total costs including labor to fall in the range of $100 to $250. A damaged wiring harness or a faulty control board will increase costs, with control boards often running $150 to $400 or more for the part alone.