Heating elementglowing bright red funny smell

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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Take a look at the element ( the "tube" inside the oven that glows red hot when the oven is turned on). If the element is burned out it will not be hot and glowing. You may have a loose connection to the element but most likely it is burned out and needs replacing.
Our stove is 27 years old and I have had to replace top or bottom elements every 6 years or so. I just bought a replacement element at Canadian Tire in Calgary for about $34. Just undo the 2 screws around the element and attach the new element to the old wires.
Good Luck -I hope this works for you

time for a new element

The symptoms you describe are an indication that the fan motor is in imminent danger of breaking down altogether.
You need to replace it as soon as possibe, otherwise you will end up with the element burning itself out, thus doubling the cost of repair.
Please rate my solution.
Thankyou.

The heating element is the likely culprit as they burn out and go open
circuit..(ie ...disconnected and will not heat up )
If you can use a multi-meter , then the element can be tested using the resistance range (with the oven SWITCHED OFF )

Usually, when an oven won't heat, it's because the bake element is burned out. The bake element is the black, pencil- thick tube at the bottom of the oven. When the oven heats, the element glows red. This element has an expected life-span of several years. It may last for only one; it may last for many more. When the element burns out, you need to replace it.

it sounds like your gas valve isnt opening

Yes it will need a new element, if the fan runs and temperature light comes on then the element is gone.

If the ignitor is weak, it will not open the safety valve. It WILL however glow, but it's not strong enough to release the gas. The ignitor should pull at least 3 amps, any less, it won't open the safety valve for gas to flow. Repl. the ignitor, it should be fine.

First, are the burners working right? It is possible that a breaker opened. Cycle your breakers off and then on. Its a shot....

How many elements in your oven? Sounds like one fried. Start the unit with the door open. See which element doesn't glow after a few minutes. Wait for cooldown, open the breakers and then remove it and take it to the appliance repair parts guy to test and replace. Funny...you should have gotten an error code.

Not that? It will likely be the thermister controlling your temp sense.