Dacor double oven, lower oven works fine, upper oven doesn't turn on at all

I have a DACOR double electric oven model ECD230SCH. the top oven lower element went out 1 and 1/2 years ago, but the top element broiler works. Yesterday the bottom oven did the same thing- bottom element not working along with convection. Pulled off doors and cut breaker. Checked thermal switch on top off oven- closed good. Pull out element and Ohm'ed out- good. Now pulled over and out oven top panel to get to the control boards. Found a nice set of schematics for the over control boards and electronics. Sat down and pin-pointed both relays that supply power to upper and lower oven "lower" heating elements. these are on 2 different boards- upper over relays on bigger board on the left with the transformer. Lower oven on the right smaller board. Hardest pain in the rear was just getting the little plastic stand offs to push back through the board to get it off. Finally got it off and inspected board. Low and behold the relay I pin-pointed had a burn/open connection on the solder joint. Re-soldered tested oven and lower oven lower heat element works now! Went to the next board and got that off and same exact problem on the rely for the top oven lower element. Re-solder and test- good!! Put everything together and ran over to 350 on top and lower and back to normal. Wife very happy she did not have to pay a repair man big bucks to swap out the control boards- would have had to replace both.

I have a degree in electronic technology so as a technician for many years did low and high voltage component level repairs. But pretty easy and you can visually see the open solder joint on the back of the board at the relay leg.
Jim B Roseville, CA.

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.

time for a new element

Try to either reset a resetable thermostat (inside by the door latch) or replace a relay board.
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It may have also Blown the Fuse, to the element, in the stove itself.

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!

You probably tripped a safety thermostat in the back of each oven. If you turn off the breaker and find a way to pull the units out you could probably remove the rear panel and reset the thermostat by pushing in a button on the back of the open thermo. Some thermo's aren't resettable though so you'd have to buy a replacement.

I found the lower circuit breaker had been tripped. That didn't fix the problem but upon further inspection whoever had worked on the unit years ago had dropped a screwdriver that had lodged between the oven wall and the rear casing and shorted out the lower heating element. I removed the screwdriver and oven works fine now. I don't think that will solve the cmmclow problem but maybee the curcuit breaker is tripped.

F2 is a Oven temperature exceeded the clean runaway temperature (self clean only) or the cooking runaway temperature (cooking modes only)