On a Dacor dual-fuel range such as the Contemporary DOP, F2 is the runaway-heat trip. The board watched the cavity keep gaining temperature after it should have leveled off, decided the oven was no longer regulating itself, and pulled power from the bake circuit to stop it. Dual-fuel models pair a gas or electric bake source with electric elements, so the runaway can originate on either.
Regulation depends on two things agreeing: an RTD probe that reports the true cavity temperature, and relays that actually open when the board tells them to. Break either link and the oven can gain heat it should have shed. A probe drifting toward a lower reading understates the temperature, while a fused relay contact keeps the bake circuit alive after cutoff. Dacor logs F2 the moment the measured climb outruns the target.
Our approach is to read the probe cold and again at temperature to see if its resistance tracks the published curve, then command the relays and watch for a clean release. A probe that lies gets swapped; a relay that stays closed means the relay board. On the iQ platform we also confirm the firmware is not misreporting a healthy probe before we condemn any hardware.
What You Can Safely Check
- Leave the oven off and open the door slightly so it cools all the way down before any retest.
- Recall which mode was running when F2 appeared, bake, broil, convect, or self-clean.
- Hold off on self-clean, since it is the one mode that legitimately reaches these temperatures.
- On iQ models, check for a pending firmware update that could affect probe reporting.
Book a Diagnostic Visit
We confirm the fault on site, then put the repair in writing before any work. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.