Bake pre heat isn't working broil and top burners

It does sound like the element may be bad. The control will cycle the bake and broil elements to even the heat in the oven. if the element is out the oven won't heat well.

is this 400c or 400f

Element is burned out.

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There's a few things that can cause this.

1. Check to see if the both that Bake and Broil elements (burners) are heating up. Check the Broil element in Broil mode.

- during pre-heat the Broil element gets cycled on and off for short time durations to speed up the heating. If the Bake element is not working, then the oven will heat, but very slowly and never reach high temperature.

2. If the elements are both working, then it's possible that you have a bad temperature sensor.

- this is a temperature dependent resistance device that should measure 1080 ohms at 70 deg F (room temp).

3. If #1 and #2 are ok, then the problem is with your oven clock/control unit. We rebuild these at fixyourboard.com.

Hello there:
first chevck to see if the broil feature will work but if both the broil and bake feature does not work meaning it will not heat up if you have selected either the bake or broil follow these solutions that i have provided for you .
It won't bake or broil If neither the bake nor the broiler heating elements heat, but the range burners still work, the clock may be set for a timed or self-cleaning cycle. Check to be sure the clock buttons and knobs are set properly. If your clock has a knob that says "push for man(ual)", push the knob in and try the baking and broiling elements again. If it still does not operate properly, you probably have a defect in the thermostat, selector switch, or common wiring. If the oven does not have a separate bake/broil/etc. selector switch, the problem may be with the thermostat. But it's not easy to check the selector switch or thermostat for proper operation. If you suspect a problem in this area, call a qualified appliance repair technician.

there is a chance that the igniter has gone bad.if you do not see it glow at all then the problem is in your main control board/ clocktimer as the manufacture likes to classify it

If it's electric ... could be one of:

1. Bake or Broil element has gone bad. The Broil element is cycled on and off during Bake pre-heat, so if it is bad this would slow down pre-heat. Does Broil work OK? (If gas, may be ignitor problem).

2. Temperature sensor problem. Does the oven eventually get to the right temperature?

3. Control board failure. If #1 and #2 are ok ... we see the control board fail and cause these symptoms. If so, we may be able to help you, we repair control boards at
www.fixyourboard.com.

does the bake element come on at all?
if so, try the oven out. do a bake @ 350 allow it to pre-heat, and see if once the pre-heat is comlete, id the broil shuts off.
on many ovens at the beginning of the cycle during pre-heat both bake and broil elements are powered.

other than that it may be a control board, or a burnt and crossed wire in the harness.

Sounds like a heating element. Same thing happend to my oven. You can find them around 50-60 dollars. Veryy easy to install, just remove a couple of screws and remove old element and put in new one. Make sure you shut off power to oven firstg of course.

I found I have this exact problem. Same bake preheat issue: I can bake if I set broil first. However, the oven doesn't work if I press bake first. The control board has already been replaced a couple times over the years. Is this another replacement??