Stove on bake mode it just gets luke warm. on broil mode it works fine

Quite normal...top element is for grill/broil only. Bottom element is for bake only. If the grill element were to come on during baking a cake it'd burn the top of your cake to a crisp.
Some grill/broil elements cook at 500-700 degrees.

Look at the wiring diagram... The manual reset Thermal Limiter Switch (part number 74008715), located on the lower rear insulation retainer can keep both elements from working, not one at a time... I would inspect the back of the bake relay for a burnt/failing solder joint. Swapping the BAKE and BROIL leads is an acceptable test, but if you put the bake leads on the broil and still get no heat: check the control relay. If the broil leads will not heat the bake element, you have a bad element or bad connection. Be sure to do all testing of the elements with at least one wire detached so as not to red a back circuit.

Understand that I am not a professional, so this answer is subject to revision by someone who is more knowledgeable.

Where I live now I'm on Natural Gas, but in the past I've had electric stove/ovens. Based on my best recall the situation you describe is NOT abnormal.

When in the Broil mode, the Bake element is NOT on, but the Broil element is on FULL-bore to provide that strong radiant heat required for the Broiling process, AND for the good browning /crusting of the product being Broiled!!!!!

On the other hand, when Baking, not broiling, IF the Broiling element were on high it would provide too much radiant heat to the top of the product being Baked, and would burn the top.

While Baking, by energizing the Broil element in a lower power setting, the Baking process is enhanced with more heat by the assistance of the Broiler element, BUT without the hazard of burning on the top!!!!!

Hope this is right and helps your understanding.

FAULTY ELEMENT OR THERMAL SWITCH. HAVE IT CHECKED OUT BY AN ELECTRICIAN.

Possibly the bake igniter, the temperature sensor or the electronic oven clock/control. Does broil mode heat properly or does it run cool also? If broil heats to the proper temperature then the temperature sensor is probably ok. That leaves the ignitor or the controller which takes some more troubleshooting. If it is the controller, we repair them at www.fixyourboard.com.

does broil work? if broil works and bake does not you have a bad bake element. let me know how it goes

Look on the control panel for an icon that looks like a padlock near one of the buttons. Hold that button down until it beeps and that should unlock the panel.

possible that the insulation that surrounds your oven cavity has yet to fully cure, i would run a clean mode, this will get the unit to max temp fro 3 hours, fully curing any insulaton for sure

After you hit the function you want...bake or broil...click the up arrow.  That should give you the default temp of 350 and the unit should light.  Now adjust to the temp you want.

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