Dacor Range, Oven, Cooktop Error Code L35

L35 indicates a shorted condition detected on RTD 3, which is the temperature sensor for the lower oven. The control board monitors the sensor's resistance to track oven temperature, and when it reads an abnormally low resistance consistent with a short circuit, it triggers L35 and disables the lower oven. The fault points to the sensor itself, the wiring harness, or the connector points along that circuit.

No. The L35 fault means the lower oven's temperature sensing is compromised, and the control board has disabled that section to prevent unsafe operation. Attempting to bypass or ignore the fault could result in uncontrolled heating or further damage to the control board or other components. The oven should remain out of service until the sensor circuit is diagnosed and repaired.

Resetting the oven by cycling power at the breaker may temporarily clear the fault display, but if the underlying short condition in the RTD 3 circuit still exists, the L35 code will return as soon as the control board re-reads the sensor. A reset is not a fix and should only be used as part of diagnosis to check whether the fault is intermittent or persistent. The root cause in the sensor or wiring must be corrected for the error to be resolved permanently.

A knowledgeable DIYer can start by inspecting the wiring and connectors for visible damage, corrosion, or loose pins, which requires no special tools and no parts. If the wiring checks out, testing the RTD 3 sensor with a multimeter for near-zero resistance will confirm a failed probe. Replacing the sensor is a moderate-difficulty repair, but working inside an oven involves electrical components, so the appliance should always be unplugged before any inspection or repair.

If the repair only requires cleaning corroded connectors or reseating a connector pin, the cost can be minimal, mainly a service call fee in the range of $75 to $150. Replacing the RTD 3 temperature sensor typically adds parts costs in the range of $30 to $100 for the sensor itself. If the control board is ultimately found to be at fault, board replacement can cost between $150 and $400 or more depending on the model.