My dacor takes 1 hour to heat to 500, in all modes.

Step 1 Locate the "Clock" button on the display. The display is located above the oven door. It clearly shows the time and has settings for temperature, time and cooking.
Step 2 Press and hold the "Clock" button until the time starts to blink.
Step 3 Set the time with the number pad. Ignore the colons and enter the number straight through. For example, if the current time is 10:08, just type 1-0-0-8.
Step 4 Set AM and PM by pressing the "#" button. Press "Start" to finish.

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.

Still active problem?

-F1- Alarm “System Watchdog Circuit”
The system will detect a failure in the internal watchdog element relay circuits and will activate a
cancel feature. F1 will be displayed in the time digits and will beep until the cancel button or another
function is selected. An F1 failure could be detected in cook or time of day mode. With an F1 failure
the ERC is picking up a command to supply heat without receiving an input from the membrane. The
watch dog circuit is designed to prevent this.
If the beep continues after pressing cancel check the main control (ERC)
Dacor


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I found the bottom element was not getting any power by using a volt/ohmmeter and a test method described elsewhere. (Shut off power, hold down COOK TIME while turning on power. then within 30 seconds press each mode you want to test and only that element/fan/etc will turn on. Cancels by itself after 30 sec.)


I traced the wire back to the relay (wire checked good) and there was no power getting through the relay although it clicked. Removed the relay board to replace it and found a cold solder joint on the "out" terminal with obvious past arcing carbon. Cleaned and soldered the pin and the oven now works normally.
WHY THE SLOW TO HEAT? The oven turns on all the elements to preheat faster and when it reaches your set temp it beeps and now only turns on the element you selected to maintain the temperature. (Bake or Convection) Our malfunctioning ovens would then cool since the element is not working properly and it must go back into preheat and keep cycling.
BY THE WAY- Don't ever use 4 hours on self clean it kills the boards and/or display. I also put a house fan in front of the oven and blow it into the lower grill to take away some of the heat on the two boards. Learned the hard way!

DACOR DIAGNOSTIX BABE !!!

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

the problem was fixed by opening the panel between the oven cavity and the touch panel just behinf the door. you can look through the grill but to trip the reset you must unscrew the panel. you will find the reset back behind the wires Looks a red button nestled on top not very open but it should be there> i do have to say i found a step by step description on this site. but right now i can't tell you who exactly he was.

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.

On my Dacor oven whenever I use the self cleaning feature it trips the breaker and the oven doesn't heat up. It can be reset, but you need to take off the front panel and reach way back for the red reset button.