Baxter ov300e electric oven

Yes, that is correct. The Baxter OV300E is a countertop oven model. It typically features an opening directly into the heating chamber, which is covered by insulation and a panel. The purpose of the insulation and the panel is to maintain proper temperature control and safety during operation.
The insulation helps to retain heat within the oven chamber, allowing for efficient cooking or baking. It also serves to prevent excessive heat from escaping, which could lead to potential hazards or energy inefficiency.
The panel covering the opening provides a barrier between the heating chamber and the surrounding environment. This panel helps to protect users from coming into direct contact with the hot surfaces inside the oven.
It's important to follow the manufacturer's instructions and safety guidelines when using the Baxter OV300E or any other cooking appliance to ensure safe and optimal operation.

I need to program timer

All the breakers on an electric OV300 would be accessible from the small access panel on the front lower right side of the oven, there should be a sticker on the door that says something along the lines of "circuit breaker here." If those breakers are all in the up position than it is most likely the breakers in your circuit panel.

With the oven off hold in the timer start (green) button and press the ON button. This will enter program level 1, I'm not positive which setting it the default temp but I know its like the 2nd or 3rd on the menu, one should say 375, being default temp and the other should say 525 being maximum temp, change the 375 to whatever you want and turn the oven off and back on again.

You can remove the oven doors, hinges, control panel door, and top oven trim, if needed. That will definitely reduce the width enough to squeeze it in.

With the oven on hold the time up or down arrows until the time begins to change.

If your bagels are turning into hockey pucks then most likely the steam isn't functioning on your oven. Make sure the water is turned on to the oven. If you still are getting no steam call an authorized service provider.

With the oven on hold the up or down arrows to the right of the clock display until you've reached the correct time.

Check to make sure the draft motor, directly above the control panel in the front right corner, is running. If it is running then you could have a dirty air switch, if you open your control panel you will see a metallic disk with a black rubber hose and two wires going to it, this is your air switch. Try disconnecting the hose and blowing out the air switch and hose with compressed air. If this doesn't work you may need a new air switch. If the motor isn't running at all you could have a bad motor or a bad ignition module which powers the fan.