Neither of my electric double wall ovens do not maintain temperature. There have been times when the temp has dropped up to 60 degrees while baking. I have to constantly press the BAKE button to maintain the right temp. Model number is AEW4630DDS. My husband is pretty handy, is this something he could handle? thanks PS it is a double oven, even though the model number shows only a single oven

Your wiring diagram and parts schematics are here in the link below. Normally the bottom element does glow read hot after a couple of minutes. Broil elements last a lot longer because they aren't used as much. There is only one Control Board. If I was guessing, I would say the temperature sensor is at fault. Elements either work, or they don't, but you can easily test continuity with a meter. Many parts are discontinued.

https://www.searspartsdirect.com/model/3f7nkrfnvp-001428/frigidaire-pleb30t8ccb-electric-wall-oven-parts

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if it is an electronic timer temp controller you might want to check it

replace the oven temp sensor, it looks like a metal rod sticking out from the inside back wall inside the oven. part here....
http://www.repairclinic.com/PartDetail/Oven-Sensor/650101/1557889

There is a safety thermostat (thermal fuse) on the back wall of the oven that interrupts power from L1 to the Bake and Broil elements. This fails open on an over-temperature or over-current condition. The oven needs to come out of the wall to replace it - best left to a tech unless you are experienced in such things.

Best Regards,
Bruce
www.fixyourboard.com

If you are monitoring the oven temperature with an analog style thermometer you may actually be ok, but seeing the thermometers slow reaction time.
Some newer ovens actually do pre-heat beep prior to reaching temp in an effort to conserve eelectricity.
A good home test is to try your oven at several different temps to see if there is any variation in internal temperature. Try it one day on 300, the next at 375 and another day at 450. Give your analog style thermometer time to catch up (usually just about 15 min) and leave it on for a half an hour to see if the temp maintains.
Also Beware of aluminum foil AND THE NEW OVEN LINER MATS as they can alter oven performance bay absorbing and blocking the ovens natural heat radiation and convection air flow currents that happen in all ovens, not just convection models.
Another interesting fact is that older ovens used a thermostat in them that operated much like your thermometer and was very slow to react making the oven typically about 100 degrees hotter than where the customer set it. This was just a fact of life before the advent of electronic temperature management and became noticeable when people began trying to bake older "hand me down" recipes in the newer ovens with less than stellar results.
You can mimic the older oven performance by preheating the oven about a hundred degrees higher than called for and after it reaches temp, re-set it to the correct temperature and put the items in right away.
If you find your temperatures fluctuating ask your servicer to replace first the temp sensor and as a last resort the control board as this part is usually pretty expensive.
Good Luck with this!

Jump online & get the schematics for your oven.. You'll need to troubleshoot the bake circuit, which is comprised of 2 - 120VAC legs (240VAC is applied during bake). One 120VAC leg is from the DLB relay and the other is from the Bake relay. if either one is bad, or not energizing, you won't get any power to the bake element. (The bake element runs 100% of the time during the bake cycle. broiler only operates 25% of the time during bake) I have had luck re-soldering the relay leg nodes on the backside of the relay board, as they develop "opens" over time. The relays are designed for ridiculous ##s of cycles, so they're not *usually* bad.

Sadly ours performs this way also. I've always had GE wall ovens and NEVER did they take very long to get up to temperature.
Has anyone else communicated with you about this problem?

meter the electric-220 metering the positives...110 metering 1 positive & ground at a time...Ohm the element if shows open(10 dollar multimeter doesn't move) then is bad.Can be reached from the back just above where the power attaches,for safety disconect the power

I have just checked the baking guide in the manual and have found that it may not be us after all. (Maybe this is why they telll us to read the whole manual. Well, I never have) According to the cooking time for Baking, the range is very extensive. For example, an angel cake at 350 could take from 28-50 minutes, buscuits at 375-400 could take 8-16 minutes, layer cakes at 350-375 could take 25-40 minutes, pound cakes at 325-350 could take 45-70 minutes and fresh pies at 400-450 could take 35-60 minutes. Basically, the baking directions on the box means absolutely nothing to use Amana oven owners. We have no choice but to cook our food or baked goods until they are cooked, whenever that may be. :) Linda

Sears Kenmore Electric Wall OVen, Mod.#9114012192 purchased in 1993. Set oven for 425 degrees, reaches set temperature, stays on about 10 minutes and temp. display goes out and oven starts cooling down. Will not stay on desired temp.to cook. Can you tell me what my problem is? Thanks. Doug.