Lower element not working - Smeg SE280X Stainless Steel Electric Single Oven

As you can see on the electrical diagram grill heating element (RG) work alone or in seria with inner lower heating element (RI) and based on the your statement, I conclude that does not work lower heater (RD). So, you should check resistance of lower heater (RD), contacts of change over switch (P7-7 and P6-6) and wiring. By the way, both heater (RI + RD) is integrated into a single heating element.


Dado

sounds like you got a defective element

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.

The thermostat for the upper element has gone bad. Needs to be replaced.

time for a new element

I had this problem a year ago (both elements worked in top oven but only broil element worked in the lower of the dual ovens). I swapped elements around but the problem was still the bottom element bottom oven.

So I called the repairman. He replaced the relay board (Part #AP2127301) for the lower oven, and it worked again. Yippee.

But now a year later, I have the exact same problem. Lower element on lower oven is not working (Frigidaire you have got to be kidding)!

However this time I decided to take a look at the relay board myself, to at least save the expense of the repairman. I looked closely at the board and thought I saw a cold solder joint on relay K4. But just to be safe I touched up all the connections on all the relays with flux and a soldering iron.

Works perfectly again !!

Please if you try this, disconnect the power first. In fact if I had to tell you that, then just call somebody.

You can usually tell when the element itself burns out. It might have small holes or bubbles on the coil. Replace the element, if found defective.

It will , also, show no continuity when measured with a meter as well.

Hi, Unplug the oven and remove the element to test it. Check the element and see if there is continuity. If the element is open, replace it. It can be bad even tho it doesn't appear bad.

I hope this helps you.

Vic

In most ovens, both elements are used during the warmup phase even when used for baking and after the set-temperature is reached, the lower element keeps it stable.
You should be able to detect which one is not working with your bare hand. Set the baking temperature for 250-300 degrees, leaving the oven door open. Hold your hand at different heights in the oven and you should be able to sense which element is working and which isn't within a couple of minutes.
If you still aren't certain, then try using the broil element only. If it is heating, then it's obviously OK and that would point to the bake (lower) element by default.
A final check could be done with an open door and hovering with your hand over the lower element; no heat = defective.  

upper and lower elements work individually but will not work together , only lower elements works in the dual element selection.