Dacor Range, Oven, Cooktop Error Code F30

F30 on a Dacor Discovery Range indicates a communication failure between the relay board and the control panel circuit board. The fault is triggered when the data cable connecting these two boards is loose, defective, or broken. In some cases, the control panel circuit board itself has failed and is unable to maintain the communication link.

Cycling power to the range by turning off the circuit breaker for 60 seconds may temporarily clear the F30 display, but the code will return if the underlying communication fault is not corrected. A reset does not repair a loose connector, a broken cable, or a defective board. The root cause must be addressed to permanently resolve the error.

If the fix is simply reseating a loose data cable, the cost may be limited to a service call fee, typically in the range of $75 to $150 depending on your area. If the data cable requires replacement, parts and labor may bring the total to $150 to $300. Replacing a defective control panel circuit board is the most expensive scenario, with total repair costs commonly ranging from $300 to $600 or more depending on the specific board and labor rates.

If the cause is a loose data cable connector, a knowledgeable DIYer can reseat the cable after disconnecting power to the range and accessing the control panel area. However, if the cable is damaged or the control panel circuit board has failed, replacing those components requires comfort working with appliance electronics and sourcing the correct parts. When in doubt, a qualified appliance technician should perform the repair.

Operating the range with an active F30 communication fault is not recommended. The control panel and relay board must communicate reliably to regulate burner output, oven temperature, and safety functions. A breakdown in that communication could result in unpredictable behavior from the appliance.