Decor oven I have a dacor convection oven model # cps127.  No heat.   I'll set the temp to 350, it shows a temp of 135 and after approximately 7 seconds I hear a click and then another click.  The boat is dead in the water.

I found the answer on other posts on this website and it saved me $500! I had the same problem with my Dacor Model ECD2278 double oven. After I ran the self cleaning the top oven would not come on and the lower oven ran almost double the temp that was set. To fix: disconnect power to the oven at the circuit breaker. Open the oven door. You'll see the grille/grate/steel cover in front of the door latch mechanism, and it should have about 4 screws holding it in place. Remove the screws then remove the grille cover. On my model the tiny red reset button was on the right side on top of a black plastic round piece which is about 1" in diameter. Press the little button down til it clicks.

it could be the oven temp sensor rod located near the top of the inside of the oven,or possibly the bake element has a hot spot on the element and can no longer pass enough current thru this spot to correctly heat to your settings a hot spot on the element will look discolored in this area

Still an active problem?

Flip both oven breakers HARD to the "off" position, then back on. If it did not help - you might have a problem with a relay on the control board or a failed bake element.
Grab a flashlight and check the element on the bottom (if you can see it). DO NOT TOUCH THE ELEMENT! If you find any bulging or cracking on the element - it'd out. Before removing the element turn the oven off on the breaker panel.
PS Model number is needed to find the part numbers.

Decor manual

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HI - I just had the same problem - repairman came and reset the breaker in the oven which "tripped" (even tho I havent used the lower oven in months).  Read posts here on other Dacor ovens which explain how to get to the reset switch to avoid having $150 in repair costs - I have not tried that myself tho but good luck!

like another person stated-from the front behind the door, take off the 6 screws and the cover by the latch. there is an "oven hi temp limit switch" It is crome with 2 heavy black wires connected to it. On the back side of this is a small red button which will reset the limit switch. I had the same issue (everything worked except the any of the heating elements) and quickly resolved.

f-4 on decor ovens mean the oven temp sensor is bad. replace the oven temp sensor and it will be fine

Question: does the unit appear to hold the correct temperature? Most convection units only turn the heating elements on and off...not the fan. If the unit is reporting operating temp and then taking other direction...and it is cooking right...you're done.

i found my circuit/schematic tucked inside the back panel in a envelope, you have to remove the oven from the wall to gat to it and start un screwing the panels, i think it was on the top.