Where can I get a set of knobs and another oven rack for the Avanti DG-24CSS

SOURCE: Avanti DG241BS - oven will not stay on

There has to be a protection system in the burner assembly to cut the supply of gas to the burner if it does not light. For the case of an oven the supply must be cut off immediately if the burner and its pilot go out. For that gas control system to work the burner control must "recognize" with a sensor when the burner is lit and when it is not. Pushing the knob "in" momentarily on this model bypasses the protection system momentarily to allow a burner to be ignited in the first place. If releasing the knob extinguishes the flame the control system is not "seeing" the flame. I tried to find some detail info on you particular ignition system but to no avail so all I can offer is a general approach to these kinds of problems . You need to find and clean or replace the sensor used to detect a flame. It could be an optical one (doubt that) or a temperature flame sensor, a thermocouple sensor, or some other kind I haven't thought of. Fixing this problem involves first determining what kind of sensor it uses. A copy of a service manual for this model can help you determine that. Try to clean the flame detector, and if that doesn't work you have to replace it or the gas control assembly it is a part of. If you have a spark ignition and its not sparking when it should first clean it --carefully--. Spilled food can short them out. Unplug the range before doing this. The owners manual shows it to be under the top burners which can be removed for cleaning this.

SOURCE: Avanti DG 241 BS gas range oven burner goes out and wwill not rel

You need to order parts from AVANTI.
http://www.avantiproducts.com/
Very disappointing customer service.
I have been waiting 6 weeks for a new thermostat. It will not
arrive from China until June -- I was originally told it would come in April. All AVANTI parts are from China and AVANTI in Florida is the
only dealer. I will never buy AVANTI again.

SOURCE: DO YOU HAVE A OVEN RACK FOR AVANTI ER24AW

No! and neither does anyone else it appears. That unit is discontinued.